CN218465404U

CN218465404U - Jack screw rod protection mechanism

Info

Publication number: CN218465404U
Application number: CN202121799265.4U
Authority: CN
Inventors: 聂亮; 罗勇; 万晓阳; 张治理
Original assignee: Hangzhou First Technology Engineering Co ltd
Current assignee: Hangzhou First Technology Engineering Co ltd
Priority date: 2021-08-02
Filing date: 2021-08-02
Publication date: 2023-02-10
Anticipated expiration: 2031-08-02

Abstract

The utility model discloses a jack lead screw protection machanism, including the installing support that is used for installing motor and lead screw, still including flexible cover, flexible cover is established outside the lead screw, and flexible cover one end sets up on the installing support, and the other end sets up at screw-nut. The utility model provides a jack screw rod protection machanism effectively avoids impurity to enter into jack screw rod in, improves jack life.

Description

Jack screw rod protection mechanism

Technical Field

The utility model belongs to the technical field of the jack technique and specifically relates to a jack screw rod protection machanism is related to.

Background

The vehicle-electricity separation and box-distribution electricity conversion mode is the development direction of new energy vehicles in the future. The sub-box battery replacement also has a mode of achieving the purpose of battery replacement by lifting the battery frame. Elevating system must be used to the lift battery frame, it is the jack system to use the most in elevating system, most trouble that the jack in existing market appears is all because the lead screw rotates not smooth and arouse, there is not the protection in the lead screw of jack on the market, moreover, the steam generator is simple in structure, can't block in the tiny granule such as grit drops the lead screw, thereby influence normal use, and when the vehicle went, the lead screw exposes in the outside and directly contacts such as muddy water, can destroy lead screw surface coating, lead screw corrosion with higher speed. For example, the publication of "a jack with a flanging structure" in chinese patent document has publication No. CN211444844U, which includes 4 connecting rods and a screw rod; the 4 connecting rods comprise 2 inward flanging connecting rods and 2 outward flanging connecting rods which are enclosed into a diamond shape; the upper and lower 2 connecting rods positioned at two sides of the diamond are respectively connected through a first pivoting piece and a second pivoting piece; the screw rod sequentially passes through the first pivoting piece and the second pivoting piece; 2 connecting rods positioned on two sides and each side of the axis of the screw rod are hinged with each other respectively; set up the through-hole that is used for wearing to establish the lead screw in the first pivot piece, be equipped with in the second pivot piece and be used for wearing to establish the lead screw and cooperate lead screw pivoted screw hole, the cover is equipped with the locking subassembly on the lead screw for the jack is rotating along the lead screw and the in-process of stretching stops first pivot piece but in this utility model along the lead screw axial towards the second pivot, and the lead screw of jack exists not to protect, can't stop tiny granule such as grit and drop in the lead screw.

Disclosure of Invention

The utility model relates to an it does not have the protection to overcome among the above-mentioned prior art jack's lead screw, simple structure can't block tiny granules such as gravel and drop in the lead screw to influence normal use scheduling problem, provide a jack lead screw protection machanism, effectively avoid impurity to enter into in the jack lead screw, improve jack life.

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

the utility model provides a jack screw rod protection machanism, is including the installing support that is used for installing motor and lead screw, still includes flexible cover, and flexible cover is established outside the lead screw, and flexible cover one end sets up on the installing support, and the other end setting is at screw-nut.

In the technical scheme, the telescopic sleeve is sleeved outside the screw rod, so that the screw rod is protected, the telescopic sleeve has elasticity, one end of the telescopic sleeve is installed on the installation support, the other end of the telescopic sleeve is installed on the screw rod nut, in the installation process, when the screw rod rotates, the screw rod nut moves to drive one end of the telescopic sleeve to move, the telescopic sleeve is always sleeved outside the screw rod through the elasticity of the telescopic sleeve, when a vehicle normally runs, the screw rod nut moves to the end part of the screw rod, the telescopic sleeve covers the screw rod all the time in the running process of the vehicle, gravel on the road surface is avoided, harmful substances such as soil can invade the meshing part of the screw rod and the nut, the problem that the screw rod is exposed outside and contacts with muddy water and the like to damage the surface coating of the screw rod is avoided, the service life of the screw rod is prolonged, and the service life of the jack is prolonged.

Preferably, the telescopic sleeve is arranged in a telescopic corrugated telescopic pipe structure.

The arrangement of the corrugated telescopic pipe enables the telescopic sleeve to have a telescopic function, the telescopic sleeve is convenient to stretch and retract, one end of the telescopic sleeve is fixed on the mounting support, the other end of the telescopic sleeve moves on the screw rod along with the screw rod nut, the screw rod is always protected under the condition that the working of the jack is not influenced, and the screw rod is prevented from being unsmooth in rotation due to the fact that the screw rod is in direct contact with the outside.

Preferably, one end of the telescopic sleeve, which is connected with the mounting support, is a support connecting end, a mounting ring for connecting the telescopic sleeve is arranged on the mounting support, and the mounting ring is sleeved outside the support connecting end.

The telescopic sleeve is connected with the mounting ring through the bracket connecting end to realize connection between the telescopic sleeve and the mounting ring, and the mounting ring is sleeved outside the bracket connecting end to realize primary fixation between the telescopic sleeve and the mounting ring.

Preferably, the mounting ring is fixedly connected with the bracket connecting end through a cable tie.

The mode that the ribbon is connected installation is swift quick, is convenient for fix collar and support fast.

Preferably, a clamping protrusion is arranged on the inner side wall of the mounting ring, a first annular clamping groove is correspondingly arranged on the outer side face of the support connecting end, and the clamping protrusion is arranged in the first annular clamping groove.

Through realizing being connected between flexible cover and the collar in the protruding joint of joint to first ring channel, simple to operate is swift, and the joint arch can slide in first ring channel, can realize relative rotation between collar and the leg joint end promptly, is convenient for adjust flexible cover, avoids its distortion to cause inconveniently.

Preferably, one end of the telescopic sleeve connected with the screw nut is a nut connecting end, a fixing ring is arranged on one end face of the screw nut connected with the telescopic sleeve, and the nut connecting end of the telescopic sleeve is sleeved outside the fixing ring.

The arrangement of the fixing ring realizes the connection between the screw rod nut and the telescopic sleeve and is convenient and quick to install.

Preferably, the nut connecting end of the telescopic sleeve is fixedly connected with the fixing ring through a screw.

The screw connection mode is convenient and firm to install, and the telescopic pipe is prevented from falling off in the moving process of the screw rod nut.

Preferably, the end part of the fixing ring is provided with a limiting convex edge, a second annular clamping groove is formed in the nut connecting end of the telescopic sleeve, and the second annular clamping groove is arranged along the circumferential direction of the telescopic sleeve.

Through realizing being connected between flexible cover and the second annular draw-in groove with spacing chimb joint in second annular draw-in groove, both will fix the nut link of solid fixed ring and flexible cover and fix, make again flexible cover have relative rotation between nut link and solid fixed ring, be convenient for adjust the flexible cover after fixing.

Therefore, the utility model discloses following beneficial effect has: effectively avoid impurity to enter into in the jack lead screw, prevent that the lead screw from causing the lead screw to rotate not smooth with external direct contact, improve jack life.

Drawings

Fig. 1 is a schematic structural view of a jack screw rod protection mechanism in an extended state according to the present invention;

FIG. 2 isbase:Sub>A cross-sectional view of section A-A of FIG. 1;

FIG. 3 is a schematic structural view of the screw rod protection mechanism of the jack in a compressed state;

FIG. 4 is a cross-sectional view of section B-B of FIG. 1;

in the figure: 1. telescopic sleeve 101, support connection end 1011, first ring groove 102, nut connection end 1021, second ring groove 2, installing support 201, installing ring 2011, joint is protruding 3, lead screw 4, screw-nut 5, solid fixed ring 501, spacing chimb.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and the detailed description.

Example 1:

in embodiment 1 shown in fig. 1 and fig. 3, a jack screw rod protection mechanism comprises a telescopic sleeve 1, wherein the telescopic sleeve 1 is sleeved outside a screw rod 3, an installation support 2 is arranged between the screw rod 3 and a motor, one end of the telescopic sleeve 1 is arranged on the installation support 2, the other end of the telescopic sleeve 1 is arranged on a screw rod nut 4, and the telescopic sleeve 1 is arranged into a telescopic corrugated telescopic pipe structure in order to ensure that the telescopic sleeve 1 has a telescopic function. One end of the telescopic sleeve 1 connected with the mounting bracket 2 is a bracket connecting end 101, a mounting ring 201 for connecting the telescopic sleeve 1 is arranged on the mounting bracket 2, and the mounting ring 201 is sleeved outside the bracket connecting end 101; one end of the telescopic sleeve 1 connected with the screw-nut 4 is a nut connecting end 102, a fixing ring 5 is arranged on one end face of the screw-nut 4 connected with the telescopic sleeve 1, and the nut connecting end 102 of the telescopic sleeve 1 is sleeved outside the fixing ring 5. In the technical scheme, the telescopic sleeve 1 is sleeved outside the screw rod 3, and then the screw rod 3 is protected, because the telescopic sleeve 1 has the elasticity, one end of the telescopic sleeve 1 is installed on the installation support 2, the other end of the telescopic sleeve is installed on the screw rod nut 4, when the screw rod 3 rotates, the screw rod nut 4 moves to drive one end of the telescopic sleeve 1 to move, the telescopic sleeve 1 is always sleeved outside the screw rod 3 through the elasticity of the telescopic sleeve 1, when a vehicle normally runs, the screw rod nut 4 moves to the end part of the screw rod 3, so that the telescopic sleeve 1 covers the screw rod 3 in the vehicle running process, gravels on the road surface are avoided, harmful substances such as soil can invade into the meshing part of the screw rod and the nut, the screw rod 3 is also prevented from being exposed outside and contacting with muddy water and the like to damage the surface coating of the screw rod 3, the service life of the screw rod 3 is prolonged, and the service life of the jack is also prolonged.

Further, the mounting ring 201 is fixedly connected with the bracket connecting end 101 through a cable tie. The mode installation that the ribbon is connected is swift quick, is convenient for fix collar 201 and support fast. Or as shown in fig. 4, the joint between collar 201 and stent connection end 101 is provided with the protruding 2011 of joint on the inside wall of collar 201, and the lateral surface correspondence at stent connection end 101 is provided with first ring groove 1011, the protruding 2011 of joint sets up in first ring groove 1011, realizes being connected between telescope tube 1 and collar 201 in first ring groove 1011 through with the protruding 2011 joint of joint, and simple to operate is swift, and the protruding 2011 of joint can slide in first ring groove 1011, can realize relative rotation between collar 201 and the stent connection end 101 promptly, is convenient for adjust telescope tube 1, avoids its distortion to cause inconvenience.

Further, the nut connecting end 102 of the telescopic sleeve 1 is fixedly connected with the fixing ring 5 through a screw, the screw connection mode is convenient and firm to install, and the telescopic pipe is prevented from falling off in the moving process of the feed screw nut 4. Or as shown in fig. 2, the nut connecting end 102 of the telescopic sleeve 1 is clamped with the fixing ring 5, that is, the end of the fixing ring 5 is provided with a limiting flange 501, a second annular clamping groove 1021 is arranged inside the nut connecting end 102 of the telescopic sleeve 1, and the second annular clamping groove 1021 is arranged along the circumferential direction of the telescopic sleeve 1. The connection between the telescopic sleeve 1 and the second annular clamping groove 1021 is realized by clamping the limiting convex edge 501 in the second annular clamping groove 1021, so that the fixing ring 5 and the nut connecting end 102 of the telescopic sleeve 1 are fixed, the telescopic sleeve 1 rotates relatively between the nut connecting end 102 and the fixing ring 5, and the fixed telescopic sleeve 1 is convenient to adjust.

It should be noted that as used in the foregoing description, the terms "front," "back," "left," "right," "upper" and "lower" refer to directions in the drawings, and the terms "inner" and "outer" refer to directions toward and away from, respectively, the geometric center of a particular component.

The above examples are only for illustrating the present invention and are not intended to limit the scope of the present invention. Various other modifications and changes can be made by those skilled in the art based on the above-described technical solutions and concepts, and all such modifications and changes should fall within the scope of the claims.

Claims

1. The utility model provides a jack screw rod protection machanism, is including the installing support that is used for installing motor and lead screw, characterized by, still includes flexible cover, and flexible cover is established outside the lead screw, and flexible cover one end sets up on the installing support, and the other end sets up on screw-nut.

2. The jack screw rod guard mechanism of claim 1, wherein said telescoping sleeve is provided in the form of a telescoping bellows structure.

3. The jack screw rod protection mechanism according to claim 1, wherein the end of the telescopic sleeve connected with the mounting bracket is a bracket connecting end, a mounting ring for connecting the telescopic sleeve is arranged on the mounting bracket, and the mounting ring is sleeved outside the bracket connecting end.

4. The jack screw rod protection mechanism of claim 3, wherein the mounting ring is fixedly connected with the bracket connecting end through a cable tie.

5. The jack screw rod protection mechanism according to claim 3, wherein a clamping protrusion is arranged on the inner side wall of the mounting ring, a first annular clamping groove is correspondingly arranged on the outer side surface of the support connecting end, and the clamping protrusion is arranged in the first annular clamping groove.

6. The jack screw rod protection mechanism according to any one of claims 1 to 5, wherein the end of the telescopic sleeve connected with the screw nut is a nut connecting end, a fixing ring is arranged on the end surface of the screw nut connected with the telescopic sleeve, and the nut connecting end of the telescopic sleeve is sleeved outside the fixing ring.

7. The jack screw rod protection mechanism as claimed in claim 6, wherein the nut connecting end of the telescopic sleeve is fixedly connected with the fixing ring through a screw.

8. The jack screw rod protection mechanism as claimed in claim 6, wherein the end of the fixing ring is provided with a limit flange, and the inside of the nut connecting end of the telescopic sleeve is provided with a second annular groove arranged along the circumference of the telescopic sleeve.