CN212185630U - Hoop brake mechanism for lifting table legs - Google Patents

Abstract

The utility model discloses a lifting table leg hoop brake mechanism, which comprises a lower table leg, an upper table leg, a hoop sheet and the lower table leg, wherein the hoop sheet is connected with the lower table leg in an embedded manner and further connected through a lever and cam component, a cam of the lever and cam component is pressed on the lower table leg, and the size of a gap between the lower table leg and the hoop sheet is changed through the rotation of the cam, so that the upper table leg and the lower table leg are relatively fixed or separated; the both ends of lever cam part are connected with the one end of first steel wire, second steel wire respectively, and the other end and the steel wire pulling device of first steel wire, second steel wire are connected, through the transformation of steel wire pulling device pulling direction, realize the change of cam rotation direction. The utility model is used for it is fixed that lift table goes up and down the table leg, can go up and down the back according to user's demand and fix the table leg, realizes vertical official working and healthy official working.

Description

Hoop brake mechanism for lifting table legs

Technical Field

The utility model relates to a table leg lifting mechanism.

Background

When the common cam-type locking lifting table legs are locked, the cam cannot be tightly pressed due to limited arm force of a person, so that the bearing force of the table legs is insufficient, and the upper table legs can slide downwards due to the placement of heavy objects; when the lifting table legs are locked in a cam mode, a person can bend to the cam mechanism, the lifting table legs are not ergonomic and unsafe, and the force is not uniform when the cam is pressed tightly, and the bearing force is not uniform.

Disclosure of Invention

An object of the utility model is to provide a can go up and down back fixed table leg according to user's demand, realize the lift table leg staple bolt brake mechanism of vertical official working and healthy official working.

The technical solution of the utility model is that:

the utility model provides a lift table leg staple bolt brake mechanism which characterized by: the table comprises a lower table leg and an upper table leg, wherein the hoop sheets are connected with the lower table leg in an embedded manner and further connected through a lever and cam part, a cam of the lever and cam part is pressed on the lower table leg, and the size of a gap between the lower table leg and the hoop sheets is changed through the rotation of the cam, so that the upper table leg and the lower table leg are relatively fixed or separated; the both ends of lever cam part are connected with the one end of first steel wire, second steel wire respectively, and the other end and the steel wire pulling device of first steel wire, second steel wire are connected, through the transformation of steel wire pulling device pulling direction, realize the change of cam rotation direction.

The utility model is used for it is fixed that lift table goes up and down the table leg, can go up and down the back according to user's demand and fix the table leg, realizes vertical official working and healthy official working.

Drawings

The present invention will be further explained with reference to the drawings and examples.

Fig. 1 is a schematic structural diagram of an embodiment of the present invention.

Fig. 2 is another angular schematic of the embodiment of fig. 1.

Fig. 3 is a schematic view of the working principle of the lever cam component of the present invention.

Figure 4 is a structural schematic view of the lower table leg.

Figure 5 is a structural schematic view of the upper table leg.

Fig. 6 is a schematic structural view of the lever cam member.

Fig. 7 is a schematic view of the structure of the wire pulling apparatus.

Fig. 8 and 9 are schematic structural views of the first and second steel wires, respectively.

Fig. 10 is a schematic view of the structure of the hoop sheet.

Detailed Description

A hoop brake mechanism for lifting table legs comprises a lower table leg 1 and an upper table leg 2, wherein a hoop sheet 7 is connected with the lower table leg in an embedded mode, a cam of a lever cam component 3 presses on the lower table leg, the size of a gap between the lower table leg and the hoop sheet is changed through rotation of the cam, and the upper table leg and the lower table leg are fixed or separated relatively under the action of friction force;

the lever cam part comprises a cam 8 and left and right arms 9 and 10 integrated with the cam, a cam pin shaft 11 is arranged on the cam, the cam pin shaft is connected with a thread fixing rod 12 penetrating through the lower table leg and the hoop sheet 7, the thread fixing rod is fixedly connected onto the hoop sheet 7 through a thread of a welding nut 16, a fulcrum is provided for subsequent cam movement, the left and right arms of the lever cam part are respectively connected with one ends of a first steel wire 5 and a second steel wire 6, the other ends of the first steel wire and the second steel wire are connected with a steel wire pulling device 4, and the change of the rotation direction of the cam is realized through the change of the pulling direction of the steel wire pulling device.

The steel wire pulling device comprises a steel wire pulling device 4, a first steel wire 5, a second steel wire 6 and a lever cam component 3 (shown in figure 3), the steel wire pulling device 4 comprises a fixing plate 13, a lever type wrench 14 is arranged on the fixing plate, and the left end and the right end of the wrench are respectively connected with the first steel wire 5 and the second steel wire 6; at the position A, a wrench is pulled around a rotating center 15 to rotate anticlockwise to drive a steel wire rope in a first steel wire rope 5 to move leftwards, so that a lever cam part 3 is close to a lower table leg 1 at the position E, and a lever cam 3 is far away from the lower table leg 1 at the position F according to the principle of the lever cam part 3 to drive the steel wire rope in a second steel wire rope 6 to move rightwards, so that a steel wire pulling device 4 rotates clockwise at the position B, the gap between the upper table leg 1 and the lower table leg 1 and an anchor ear piece 7 is enlarged, the friction force is reduced, and the table leg 2 and the lower table leg 1 directly have a gap and can finally slide; on the contrary, at the position B, the wrench is wrenched around the rotation center to rotate clockwise, and according to the principle relationship, the gap between the lower table leg 1 and the hoop sheet 7 is finally reduced, and the upper table leg 2 and the lower table leg 1 are relatively fixed under the action of friction force.

Claims (1)

1. The utility model provides a lift table leg staple bolt brake mechanism which characterized by: the table comprises a lower table leg and an upper table leg, wherein the hoop sheets are connected with the lower table leg in an embedded manner and further connected through a lever and cam part, a cam of the lever and cam part is pressed on the lower table leg, and the size of a gap between the lower table leg and the hoop sheets is changed through the rotation of the cam, so that the upper table leg and the lower table leg are relatively fixed or separated; the both ends of lever cam part are connected with the one end of first steel wire, second steel wire respectively, and the other end and the steel wire pulling device of first steel wire, second steel wire are connected, through the transformation of steel wire pulling device pulling direction, realize the change of cam rotation direction.

Images