CN204873701U

CN204873701U - Prevent pressing jack

Info

Publication number: CN204873701U
Application number: CN201520509390.5U
Authority: CN
Inventors: 左美群
Original assignee: Individual
Current assignee: Individual
Priority date: 2015-07-14
Filing date: 2015-07-14
Publication date: 2015-12-16
Anticipated expiration: 2025-07-14

Abstract

The utility model discloses a prevent pressing jack, by pressure sensor, lifting sleeve, the nut, thrust bearing, the rocker, the gear, the square head parallel key, the button head parallel key, a screw rod, a housing, base and display screen are constituteed, the screw rod inserts in the casing, the button head parallel key sets up on the screw rod, square head parallel key cover is outside the screw rod, the mutual interlock of unsmooth tooth that button head parallel key and square head parallel key were equipped with, the gear sets up the right side at the square head parallel key, thrust bearing sets up the top at the screw rod, the rocker transversely inserts among the thrust bearing, thrust bearing inserts among the lifting sleeve, pressure sensor sets up on the inside top of lifting sleeve, it is fixed through setting up at the nut on lifting sleeve right side, the base sets up the bottom at the casing, the display screen is arranged on the housing, the utility model discloses a jack, the weight that can show the jack stand in real time, prevent that jack -up weight from exceeding the jack bearing.

Description

A kind of jack against pressure

Technical field

The utility model relates to mechanical field, particularly one jack against pressure.

Background technology

Jack is the highly little the simplest weight-lifting equipment of a kind of lifting, lifts part as equipment, the light little weight-lifting equipment of jacking weight in stroke by top bracket or bottom claw with rigidity top.Divide mechanical type and fluid pressure type two kinds, jack is mainly used in the department such as factories and miness, communications and transportation as Mechanical Help and other work such as lifting, support.Its light structure is firm, flexibility and reliability, and a people can carry and operate.Jack, as a kind of range of use instrument widely, have employed top quality cast, ensure that quality and the service life of jack, and jack is divided into mechanical jack and hydraulic jack two kinds, and principle is had nothing in common with each other.From principle, hydraulic jack based on principle be pascal's principle, that is: liquid pressure is everywhere consistent, like this, in the system of balance, above smaller piston, applied pressure is smaller, and on large piston, applied pressure is also larger, can keep the static of liquid like this.So by the transmission of liquid, the different pressure on different end can be obtained, so just can reach an object converted.We common to hydraulic jack be exactly make use of this principle to reach the transmission of power.Mechanical jack adopts theory of machines, and back and forth to pull handle, namely pusher dog promotes the revolution of ratchet gap, and bevel pinion drives large bevel gear, weight lifting screw rod is rotated, thus makes jacking sleeve acquisition hoist or decline, and reaches the function of lifting pulling force.

Utility model content

Technical problem to be solved in the utility model is to provide a kind of weight that can show jack stand in real time, prevents jack-up weight from exceeding the jack against pressure of jack load-bearing, to solve the above-mentioned multinomial defect caused in prior art.

For achieving the above object, the utility model provides following technical scheme: a kind of jack against pressure, pressure sensor, jacking sleeve, nut, thrust baring, rocking bar, gear, square toes flat key, round end flat key, screw rod, housing, base and read-out composition, screw rod is inserted in housing, round end flat key is arranged on screw rod, square toes flat key is enclosed within outside screw rod, the shaggy tooth that round end flat key is provided with square toes flat key is engaged mutually, gear is arranged on the right side of square toes flat key, thrust baring is arranged on the top of screw rod, in the laterally inserted thrust baring of rocking bar, thrust baring is inserted in jacking sleeve, pressure sensor is arranged on the top of jacking sleeve inside, fixed by the nut be arranged on the right side of jacking sleeve, base is arranged on the bottom of housing, read-out is arranged on housing.

Preferably, the top of described jacking sleeve is provided with rubber buffer pad.

Preferably, described square toes flat key is provided with polytetrafluorethylecoatings coatings.

Preferably, described rocking bar is provided with handle.

Preferably, described read-out, be made up of housing, screen, control key, on & off switch, Warning light and buzzer phone, screen is arranged on housing upper semisection, control key is arranged on housing, is positioned at below screen, and on & off switch is arranged on the side of housing, Warning light is arranged on the upper right side of housing, and buzzer phone is arranged on the upper left side of housing.

The beneficial effect of above technical scheme is adopted to be: such design can show the weight of jack stand in real time, prevents jack-up weight from exceeding jack load-bearing; The top of jacking sleeve is provided with rubber buffer pad, and such design can play the protective effect to jack, in order to avoid the overweight infringement jack of weight; Square toes flat key is provided with polytetrafluorethylecoatings coatings, the wear-resisting scuff of this coating, and the friction coefficient on surface is little, can play the effect that smooth square toes flat key and round end flat key slide; Rocking bar is provided with handle, and when operating jack, only need shake handle can realize lifting jack, facilitates the operation of user; Read-out, be made up of housing, screen, control key, on & off switch, Warning light and buzzer phone, screen is arranged on housing upper semisection, control key is arranged on housing, be positioned at below screen, on & off switch is arranged on the side of housing, Warning light is arranged on the upper right side of housing, buzzer phone is arranged on the upper left side of housing, the threshold value of jack pressure can be set by control key, the Warning light flicker when pressure exceedes this threshold value, buzzer phone alarm sounds sound plays warning function, prevents the excessive infringement jack of pressure.

Accompanying drawing explanation

Fig. 1 is structural representation of the present utility model;

Fig. 2 is the structural representation of read-out shown in Fig. 1.

Wherein, 1---pressure sensor, 2---jacking sleeve, 3---nut, 4---thrust baring, 5---rocking bar, 6---gear, 7---square toes flat key, 8---round end flat key, 9---screw rod, 10---housing, 11---base, 12---read-out, 13---housing, 14---screen, 15---control key, 16---on & off switch, 17---Warning light, 18---buzzer phone.

Detailed description of the invention

Preferred implementation of the present utility model is described in detail below in conjunction with accompanying drawing.

Fig. 1 and Fig. 2 shows the detailed description of the invention of a kind of jack against pressure of the utility model: a kind of jack against pressure, pressure sensor 1, jacking sleeve 2, nut 3, thrust baring 4, rocking bar 5, gear 6, square toes flat key 7, round end flat key 8, screw rod 9, housing 10, base 11 and read-out 12 form, screw rod 9 is inserted in housing 10, round end flat key 8 is arranged on screw rod 9, square toes flat key 7 is enclosed within outside screw rod 9, the shaggy tooth that round end flat key 8 is provided with square toes flat key 7 is engaged mutually, square toes flat key 7 is provided with polytetrafluorethylecoatings coatings, the wear-resisting scuff of this coating, the friction coefficient on surface is little, the effect that smooth square toes flat key and round end flat key slide can be played, gear 6 is arranged on the right side of square toes flat key 7, thrust baring 4 is arranged on the top of screw rod 9, in the laterally inserted thrust baring 4 of rocking bar 5, rocking bar 5 is provided with handle, when operating jack, only need shake handle can realize lifting jack, facilitate the operation of user, thrust baring 4 is inserted in jacking sleeve 2, the top of jacking sleeve 2 is provided with rubber buffer pad, such design can play the protective effect to jack, in order to avoid the overweight infringement jack of weight, pressure sensor 1 is arranged on the top of jacking sleeve 2 inside, fixed by the nut 3 be arranged on the right side of jacking sleeve 2, base 11 is arranged on the bottom of housing 10, read-out 12 is arranged on the housing 10.

Read-out 12 shown in composition graphs 2, by housing 13, screen 14, control key 15, on & off switch 16, Warning light 17 and buzzer phone 18 form, screen 14 is arranged on housing 13 upper semisection, control key 15 is arranged on housing 13, be positioned at below screen 14, on & off switch 16 is arranged on the side of housing, Warning light 17 is arranged on the upper right side of housing 13, buzzer phone 18 is arranged on the upper left side of housing 13, the threshold value of jack pressure can be set by control key 15, when pressure exceedes this threshold value, Warning light 17 glimmers, buzzer phone 18 alarm sounds sound plays warning function, prevent the excessive infringement jack of pressure.

Above-described is only preferred implementation of the present utility model; it should be pointed out that for the person of ordinary skill of the art, under the prerequisite not departing from the utility model creation design; can also make some distortion and improvement, these all belong to protection domain of the present utility model.

Claims

1. a jack against pressure, it is characterized in that: pressure sensor, jacking sleeve, nut, thrust baring, rocking bar, gear, square toes flat key, round end flat key, screw rod, housing, base and read-out composition, screw rod is inserted in housing, round end flat key is arranged on screw rod, square toes flat key is enclosed within outside screw rod, the shaggy tooth that round end flat key is provided with square toes flat key is engaged mutually, gear is arranged on the right side of square toes flat key, thrust baring is arranged on the top of screw rod, in the laterally inserted thrust baring of rocking bar, thrust baring is inserted in jacking sleeve, pressure sensor is arranged on the top of jacking sleeve inside, fixed by the nut be arranged on the right side of jacking sleeve, base is arranged on the bottom of housing, read-out is arranged on housing.

2. jack against pressure according to claim 1, is characterized in that: the top of described jacking sleeve is provided with rubber buffer pad.

3. jack against pressure according to claim 1, is characterized in that: described square toes flat key is provided with polytetrafluorethylecoatings coatings.

4. jack against pressure according to claim 1, is characterized in that: described rocking bar is provided with handle.

5. jack against pressure according to claim 1, it is characterized in that: described read-out, be made up of housing, screen, control key, on & off switch, Warning light and buzzer phone, screen is arranged on housing upper semisection, control key is arranged on housing, is positioned at below screen, and on & off switch is arranged on the side of housing, Warning light is arranged on the upper right side of housing, and buzzer phone is arranged on the upper left side of housing.