CN211065459U

CN211065459U - Crank type lifting leg

Info

Publication number: CN211065459U
Application number: CN201921878155.XU
Authority: CN
Inventors: 刘彦武
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-11-04
Filing date: 2019-11-04
Publication date: 2020-07-24
Anticipated expiration: 2029-11-04

Abstract

The utility model discloses a crank formula lift leg, including upper plate and elevating system, the inside of upper plate is provided with the keyhole, and the bottom of upper plate is connected with lifting support, lifting support's bottom surface is connected with spacing spout, and the outside of spacing spout is provided with the fixed bolster, the surface welding of fixed bolster is connected with the auxiliary rod, the top surface mounting of fixed bolster has the control casing, elevating system's inboard below is provided with interior ring holder, elevating system's top is provided with lubricated mechanism. This crank formula lift leg compares with current ordinary crank formula lift leg, can carry out self-lubricate to the elevation structure of this lift leg inside, maintains the lubrication degree between this crank formula lift leg internals, is favorable to the long-time use of the inside part of this crank formula lift leg, prevents that its inside part from rustting owing to receiving the influence of air, leads to inside part card shell to appear when going up and down.

Description

Crank type lifting leg

Technical Field

The utility model relates to a lift leg technical field specifically is a crank formula lift leg.

Background

The lifting leg is a lifting device which can achieve corresponding height adjustment on devices connected with the lifting leg by utilizing self up-down lifting, is widely applied to lifting of tables and chairs, and promotes continuous development of the lifting device along with development of scientific technology and social progress so as to gradually trend towards intelligent development.

Current crank formula lift leg is in the use, can not carry out self-lubricate to this lift leg inside for its inside part is rusted owing to the influence that receives the air, leads to inside part to appear the phenomenon of card shell when going up and down, influences the lift use of this lift leg, and the user demand who satisfies people that can not be fine carries out technical innovation on current crank formula lift leg basis to above-mentioned condition.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a crank formula lift leg to propose general crank formula lift leg in solving above-mentioned background art and in the use, can not carry out the self-lubricate to this lift leg inside, make its inside part rust owing to receive the influence of air, lead to inside part to appear the phenomenon of card shell when going up and down, influence the lift use of this lift leg, the user demand problem that satisfies people that can not be fine.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a crank formula lift leg, includes upper plate and elevating system, the inside of upper plate is provided with the keyhole, and the bottom of upper plate is connected with lifting support, lifting support's bottom surface connection has spacing spout, and the outside of spacing spout is provided with the fixed bolster, the outer surface welded connection of fixed bolster has the auxiliary rod, and the bottom welded connection of fixed bolster has unable adjustment base, the top surface mounting of fixed bolster has control housing, and control housing's right side is provided with the hand (hold), elevating system's inboard below is provided with the inner ring frame, and elevating system is located the inside of control housing, elevating system's top is provided with lubricated mechanism.

Preferably, the lifting mechanism comprises a first gear block, a connecting shaft, a second gear block and an outer ring frame, the second gear block is mounted at the top end of the connecting shaft, the first gear block is connected to the upper portion of the left side of the second gear block, and the outer ring frame is arranged on the surface of the bottom end of the first gear block.

Preferably, a meshing structure is formed between the first gear block and the second gear block, the central axis of the first gear block coincides with the central axis of the lifting support, and the handle is matched with the lifting support through the first gear block, the connecting shaft and the second gear block to form a communicating structure with the lifting support.

Preferably, lubricating mechanism includes push rod, rubber seal ring, push pedal, storage tank, interlayer, reset spring and lubricated cotton, and the top of push rod is connected with the push pedal, the top surface edge of push rod is provided with rubber seal ring, and the outside of push pedal installs the storage tank, the inboard of push pedal is fixed with lubricated cotton, and the inboard surface of push pedal is connected with reset spring, the interlayer is installed to reset spring's bottom.

Preferably, the outer side surface of the lubricating cotton is attached to the inner side surface of the push plate, a communicating structure is formed between the lubricating cotton and the interlayer, and the interlayer is of a hollow structure.

Preferably, the push rod and the interlayer form an integrated structure through mutual matching between the push plate and the return spring, and the outer surface structure of the push plate is matched with the inner surface structure of the storage groove.

Compared with the prior art, the beneficial effects of the utility model are as follows:

1. the utility model discloses a setting of first gear piece, connecting axle, second gear piece and outer ring holder for this crank formula lift leg adopts the mode that meshing connection and threaded connection combine together when using, through the transmission connection between the tooth piece, drives the lifting support of first gear piece inside screw thread connection and carries out the screw thread lift, and then goes on lifting adjustment to this crank formula lift leg, has saved the use of manpower, has simplified the operation of this crank formula lift leg, has provided convenience for the use of this crank formula lift leg, is applicable to different use crowds, has improved the suitability of this crank formula lift leg;

2. the utility model discloses a push rod, rubber seal ring, push pedal, storage tank, interlayer, reset spring and lubricated cotton's setting for this crank formula lift leg when using, utilize the lubricating oil that lubricated cotton compression produced, can carry out the automatic lubrication to the elevation structure of this lift leg inside, maintain the lubrication degree between this crank formula lift leg inside part, be favorable to the long-time use of this crank formula lift leg inside part, thereby prolonged the life of this crank formula lift leg, prevent that its inside part from rustting because of receiving the influence of air, the phenomenon that leads to inside part to appear blocking when going up and down, influence the lift use of this lift leg;

3. the utility model discloses a push rod, push pedal and reset spring's setting for inside lubricated mechanism of this crank formula lift leg utilizes reset spring rebound effect when using, rebounds push pedal and push rod, makes it can carry out automatic re-setting, so that this lubricated mechanism's used repeatedly, and then provides convenience for the use of this lift leg.

Drawings

FIG. 1 is a schematic view of the internal structure of the present invention;

FIG. 2 is an enlarged schematic view of the structure at A of FIG. 1 according to the present invention;

fig. 3 is a schematic diagram of the external structure of the present invention.

In the figure: 1. an upper base plate; 2. a keyhole; 3. a control housing; 4. an inner ring frame; 5. a lifting support; 6. fixing a bracket; 7. a limiting chute; 8. an auxiliary lever; 9. a fixed base; 10. a handle; 11. a lifting mechanism; 1101. a first gear block; 1102. a connecting shaft; 1103. a second gear block; 1104. an outer ring frame; 12. a lubrication mechanism; 1201. a push rod; 1202. a rubber seal ring; 1203. pushing the plate; 1204. a storage tank; 1205. an interlayer; 1206. a return spring; 1207. and (4) lubricating cotton.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution: a crank type lifting leg comprises an upper base plate 1 and a lifting mechanism 11, wherein a bolt hole 2 is arranged inside the upper base plate 1, a lifting support 5 is connected to the bottom end of the upper base plate 1, a limiting sliding groove 7 is connected to the bottom end surface of the lifting support 5, a fixing support 6 is arranged on the outer side of the limiting sliding groove 7, an auxiliary rod 8 is welded to the outer surface of the fixing support 6, a fixing base 9 is welded to the bottom end of the fixing support 6, a control shell 3 is installed on the top end surface of the fixing support 6, a handle 10 is arranged on the right side of the control shell 3, an inner ring frame 4 is arranged below the inner side of the lifting mechanism 11, the lifting mechanism 11 is located inside the control shell 3, the lifting mechanism 11 comprises a first gear block 1101, a connecting shaft 1102, a second gear block 1103 and an outer ring frame 1104, a second gear block 1103 is installed at the top end of the connecting shaft 1102, a first gear block 1101 is connected above, and the bottom end surface of the first gear block 1101 is provided with an outer ring frame 1104, a meshing structure is formed between the first gear block 1101 and the second gear block 1103, and the central axis of the first gear block 1101 coincides with the central axis of the lifting bracket 5, and the handle 10 forms a communication structure with the lifting bracket 5 through the mutual matching among the first gear block 1101, the connecting shaft 1102 and the second gear block 1103, when in use, the crank type lifting leg adopts the mode of combining the meshing connection and the threaded connection, through the transmission connection between the gear blocks, the lifting bracket 5 which is connected with the inner side of the first gear block 1101 through threads is driven to lift, the lifting adjustment is carried out on the crank type lifting leg, so that the use of manpower is saved, the operation of the crank type lifting leg is simplified, the use of the crank type lifting leg is facilitated, the crank type lifting leg is suitable for different users, and the applicability of the crank type lifting leg is improved;

a lubricating mechanism 12 is arranged above the lifting mechanism 11, the lubricating mechanism 12 comprises a push rod 1201, a rubber sealing ring 1202, a push plate 1203, a storage groove 1204, an interlayer 1205, a return spring 1206 and lubricating cotton 1207, the top end of the push rod 1201 is connected with the push plate 1203, the rubber sealing ring 1202 is arranged on the edge of the outer surface of the top end of the push rod 1201, the storage groove 1204 is arranged on the outer side of the push plate 1203, the lubricating cotton 1207 is fixed on the inner side of the push plate 1203, the return spring 1206 is connected on the inner side surface of the push plate 1203, the interlayer 1205 is arranged at the bottom end of the return spring 1206, the outer surface of the lubricating cotton 1207 is attached to the inner side surface of the push plate 1203, a communicating structure is formed between the lubricating cotton 1207 and the interlayer 1205, and the interlayer is arranged to be a hollowed-out structure, so that when the crank type lifting leg is used, lubricating oil generated by, the lubricating degree between the parts in the crank type lifting leg is maintained, so that the parts in the crank type lifting leg can be used for a long time, the service life of the crank type lifting leg is prolonged, the parts in the crank type lifting leg are prevented from rusting due to the influence of air, the phenomenon that the parts in the crank type lifting leg are clamped when the crank type lifting leg is lifted is avoided, and the lifting use of the crank type lifting leg is influenced;

the push rod 1201 forms the integral structure through mutually supporting between push pedal 1203 and reset spring 1206 and interlayer 1205, and the surface structure of push pedal 1203 is identical with the internal surface structure of storage tank 1204, make the inside lubricating mechanism 12 of this crank formula lift leg when using, utilize reset spring 1206 rebound effect, bounce-back push pedal 1203 and push rod 1201, make it can carry out automatic re-setting, so that this lubricating mechanism 12's used repeatedly, and then provide convenience for this lift leg's use.

The working principle is as follows: when the crank type lifting leg is used, firstly, the lifting leg is connected with equipment to be supported through a bolt hole 2 arranged on the surface of an upper bottom plate 1 at the top end of the lifting leg by using a bolt so as to be convenient for the lifting leg to use, when the lifting leg is used, the lifting leg is placed on a horizontal plane so as to maintain the vertical stability of the lifting leg in the use process, then the height of the lifting leg is adjusted according to the use requirement, a handle 10 at the right end of the lifting leg is held by a hand, then the handle 10 is rotated clockwise so as to drive a second gear block 1103 at the inner side to rotate through the connection between a connecting shaft 1102, meanwhile, the second gear block 1103 drives a first gear block 1101 to rotate through a meshing structure between the second gear block 1103 and the first gear block 1101, then the first gear block 1101 drives the lifting bracket 5 to rotate and move upwards through the self rotation and the threaded connection between the first gear block 1101 and the lifting bracket 5, further driving the equipment connected with the surface of the upper bottom plate 1 connected with the top end to ascend, and adjusting the height of the equipment;

in the use process of the lifting leg, the push rod 1201 on the surface of the control shell 3 is manually pushed, the push rod 1203 is made to drive the push plate 1203 connected with the inner side to move inwards, the lubricating cotton 1207 and the reset spring 1206 in the storage tank 1204 are compressed, lubricating oil generated by compression of the lubricating cotton 1207 flows to the surface of the lifting support 5 through the hollow structure of the interlayer 1205, the surface of the lifting support is automatically lubricated, the lubricating degree between the lifting support and the first gear block 1101 is maintained, the lifting support is convenient to lift, the surface of the lifting support is prevented from rusting, the phenomenon that the lifting support is blocked when the lifting support is lifted is caused, the lifting use of the lifting leg is influenced, the push rod 1201 is released, the reset spring 1206 in the lifting support utilizes the self rebound acting force to reversely push the push plate 1203 and the push rod 1201, and the push rod 1201 is reset.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a crank formula lift leg, includes upper plate (1) and elevating system (11), its characterized in that: the inside of upper plate (1) is provided with keyhole (2), and the bottom of upper plate (1) is connected with lifting support (5), the bottom surface connection of lifting support (5) has spacing spout (7), and the outside of spacing spout (7) is provided with fixed bolster (6), the surface welded connection of fixed bolster (6) has auxiliary rod (8), and the bottom welded connection of fixed bolster (6) has unable adjustment base (9), the top surface mounting of fixed bolster (6) has control casing (3), and the right side of control casing (3) is provided with hand (hold) 10, the inboard below of elevating system (11) is provided with inner ring frame (4), and elevating system (11) are located the inside of control casing (3), the top of elevating system (11) is provided with lubricated mechanism (12).

2. A crank type lifting leg as claimed in claim 1, wherein: the lifting mechanism (11) comprises a first gear block (1101), a connecting shaft (1102), a second gear block (1103) and an outer ring frame (1104), the second gear block (1103) is mounted at the top end of the connecting shaft (1102), the first gear block (1101) is connected to the upper portion of the left side of the second gear block (1103), and the outer ring frame (1104) is arranged on the surface of the bottom end of the first gear block (1101).

3. A crank type lifting leg as claimed in claim 2, wherein: constitute the engagement structure between first gear piece (1101) and second gear piece (1103), and the axis of first gear piece (1101) coincides with the axis of lifting support (5) mutually to hand (10) through mutually supporting between first gear piece (1101), connecting axle (1102) and second gear piece (1103) and constitute the intercommunication structure between lifting support (5).

4. A crank type lifting leg as claimed in claim 1, wherein: lubricating mechanism (12) are including push rod (1201), rubber seal ring (1202), push pedal (1203), storage tank (1204), interlayer (1205), reset spring (1206) and lubricated cotton (1207), and the top of push rod (1201) is connected with push pedal (1203), the top surface edge of push rod (1201) is provided with rubber seal ring (1202), and storage tank (1204) are installed in the outside of push pedal (1203), the inboard of push pedal (1203) is fixed with lubricated cotton (1207), and the inboard surface connection of push pedal (1203) has reset spring (1206), interlayer (1205) are installed to the bottom of reset spring (1206).

5. A crank type lifting leg as claimed in claim 4, wherein: the outer side surface of the lubricating cotton (1207) is attached to the inner side surface of the push plate (1203), a communicating structure is formed between the lubricating cotton (1207) and the interlayer (1205), and the interlayer (1205) is of a hollow structure.

6. A crank type lifting leg as claimed in claim 4, wherein: the push rod (1201) and the interlayer (1205) form an integrated structure through the mutual matching between the push plate (1203) and the return spring (1206), and the outer surface structure of the push plate (1203) is matched with the inner surface structure of the storage groove (1204).