CN220748956U - Multisection lead screw lag - Google Patents

Abstract

The utility model discloses a multisection screw rod protecting sleeve which comprises a convex base, wherein an annular fixing sleeve is arranged on the inner wall of one side of the convex base, a plurality of protecting sleeve monomers are arranged on the outer wall of one side of the convex base, sliding blocks for sliding connection are arranged among the protecting sleeve monomers, and a mounting block is arranged on one side of the top end of one protecting sleeve monomer. According to the utility model, the retractable protective sleeve monomer is arranged, so that the protective sleeve can be retracted according to actual needs, screws with different lengths are adapted to be fully protected, the retracted protective sleeve monomer saves space and resources of equipment, economic benefit and environmental protection are improved, the stability of the screw protective sleeve in the sliding process can be improved, the friction strength between the protective sleeve monomers is reduced, the service life is prolonged, in addition, the screw protective sleeve does not need to be assembled in advance before use, and the operation is simple, time-saving and labor-saving.

Description

Multisection lead screw lag

Technical Field

The utility model relates to the technical field of protective sleeves, in particular to a multisection screw rod protective sleeve.

Background

The screw rod protecting sleeve is one kind of protecting sleeve, and can protect screw rod, smooth rod, shaft, upright post and other parts effectively from being polluted and destroyed by dust and other outer environment. However, when the screw rod is used, a situation that a plurality of sections are formed usually occurs, so that a protective sleeve capable of protecting the screw rod with a plurality of sections is needed, and the screw rod protective sleeve can stretch or compress along with the movement of the screw rod in a vertical direction or a horizontal direction.

A screw rod with protection as disclosed in the authority bulletin No. CN219062198U, wherein a hand wheel, a first protective sleeve and a second protective sleeve are sleeved on the screw rod in sequence; the hand wheel is in threaded connection with the screw rod, the bottom end of the first protective sleeve is connected with the hand wheel, and the top end of the first protective sleeve extends into the first protective sleeve from the bottom end of the second protective sleeve; the top end of the second protective sleeve is connected with the screw rod; the first protective sleeve can rotate along with the hand wheel and gradually extend into the second protective sleeve. But this lag needs the staff to install first connecting piece, second connecting piece, shielding plate and first lag, second lag in advance just can use when using, and the installation is comparatively loaded down with trivial details, if be the lead screw more than two sections, the spare part that uses is more, extravagant staff's labor time, reduction in work efficiency.

Disclosure of Invention

The utility model aims to provide a multisection screw rod protecting sleeve, which solves the problems that various parts are required to be installed in advance and the operation is complicated in the prior art.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a multisection lead screw lag, includes the convex base, install annular fixed cover on the inner wall of convex base one side, install a plurality of lag monomer on the outer wall of convex base one side, mutually suit and sliding connection in proper order between a plurality of lag monomer, a plurality of install the slider that is used for sliding connection between the lag monomer, every two install the guard box between the lag monomer, the slider is located the inside of guard box, one of them the installation piece is installed to one side on lag monomer top, the outer wall of installation piece one side with outmost one side outer wall interconnect of lag monomer.

Preferably, a screw rod passing cavity is formed in the convex base, a fixing hole is formed in the annular fixing sleeve, and the fixing hole and the screw rod passing cavity are coaxial.

Preferably, six protecting sleeve monomers are arranged, and sliding grooves for sliding of the sliding blocks are formed in the outer walls of two sides of the six protecting sleeve monomers.

Preferably, the protective sleeve monomer is made of a 45-steel member, and the annular fixing sleeve is made of an epoxy resin material.

Preferably, the diameter of the annular fixing sleeve is 14mm to 25mm.

Preferably, the gap between every two protecting cover monomers is 0.5mm to 1mm.

Compared with the prior art, the utility model has the beneficial effects that: the screw rod is stretched into the protective sleeve monomer, at the moment, a nut pair on the screw rod is contacted with the inner wall at one side of the protective sleeve monomer, and the nut pair drives the protective sleeve monomer to slide along the horizontal direction along with the continuous stretching of the screw rod until all the protective sleeve monomers are stretched out; through setting up collapsible lag monomer, can stretch out and draw back according to actual need, adapt to the lead screw of different length, make it obtain abundant protection, lag monomer after the shrink has practiced thrift space and the resource of equipment, improve economic benefits and feature of environmental protection, through setting up the cooperation of slider and spout and using, can improve the stability of lead screw lag in the process of sliding, reduce the frictional strength between the lag monomer and improve life, this multisection lead screw lag need not to assemble in advance before using in addition, easy operation, labour saving and time saving.

Drawings

FIG. 1 is a schematic view of a front cross-sectional structure of the present utility model;

FIG. 2 is a schematic side view of the present utility model;

FIG. 3 is an enlarged schematic view of the structure of FIG. 1A according to the present utility model;

fig. 4 is a schematic diagram of a front view structure of the present utility model.

In the figure: 1. a convex base; 101. a screw rod passing cavity; 2. an annular fixing sleeve; 201. a fixing hole; 3. a slide block; 4. a protective sleeve; 5. a protection box; 6. and (5) installing a block.

Detailed Description

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-4, an embodiment of the present utility model is provided: the utility model provides a multisection lead screw lag, includes convex base 1, installs annular fixed cover 2 on the inner wall of convex base 1 one side, and the diameter of annular fixed cover 2 is 14mm to 25mm, installs a plurality of lag monomer 4 on the outer wall of convex base 1 one side, mutually suit and sliding connection in proper order between a plurality of lag monomer 4, and the clearance between every two lag monomer 4 is 0.1mm to 1mm, can to a great extent save equipment space through mutually suit when contracting, improves economic benefits;

a sliding block 3 for sliding connection is arranged among the plurality of protecting sleeve monomers 4, a protecting box 5 is arranged between every two protecting sleeve monomers 4, the sliding block 3 is positioned in the protecting box 5, one side of the top end of one protecting sleeve monomer 4 is provided with a mounting block 6, the outer wall of one side of the mounting block 6 is connected with the outer wall of one side of the outermost protecting sleeve monomer 4, and when the sliding block 3 slides to the top end of the other protecting sleeve monomer 4 along with the movement of the protecting sleeve monomer 4, the protecting box 5 protects the sliding block 3 and prevents the sliding block 3 from being influenced by accidental collision;

the screw rod passing cavity 101 is arranged in the convex base 1, the fixing hole 201 is arranged in the annular fixing sleeve 2, the fixing hole 201 and the screw rod passing cavity 101 are coaxial, the position of the screw rod is limited through the fixing hole 201, the screw rod is prevented from shifting, and meanwhile the screw rod is always positioned in the center position of the screw rod passing cavity 101, so that the subsequent protection operation is convenient;

six protecting sleeve monomers 4 are arranged, sliding grooves for sliding the sliding blocks 3 are formed in the outer walls of two sides of the six protecting sleeve monomers 4, and the sliding blocks 3 drive the two protecting sleeve monomers 4 to mutually slide;

the protective sleeve monomer 4 is made of a 45-number steel member, the annular fixing sleeve 2 is made of an epoxy resin material, and the epoxy resin material has the characteristics of higher strength, deformation resistance and wear resistance and is suitable for long-time use in various environments.

When the embodiment of the application is used, firstly, a worker stretches the screw rod from the screw rod passing cavity 101 into the fixing hole 201, then limits the position of the screw rod through the fixing hole 201, prevents the situation of unstable deviation of the screw rod in the moving process, does not need a complex supporting mechanism, is favorable for simplifying the mechanism design and the manufacturing process, reduces the maintenance cost, then stretches the screw rod into the protecting cover monomer 4 continuously, at the moment, a nut pair on the screw rod contacts with the inner wall of one side of the protecting cover monomer 4 of the outermost layer, the nut pair drives the protecting cover monomer 4 of the outermost layer and slides on the outer wall of one side of the protecting cover monomer 4 of the previous layer through the sliding block 3, when the protecting cover monomer 4 of the outermost layer slides to the limit position, the protecting cover monomer 4 of the inner layer is driven to slide continuously, by analogy, when the outer protective cover monomer 4 slides to the extreme position, the inner protective cover monomer 4 slides on the surface of the next protective cover monomer 4 until all protective cover monomers 4 are fully stretched out, then the outer protective cover monomer 4 is fixed through the mounting block 6, so that all protective cover monomers 4 are fixed, sundries are prevented from entering the equipment, the normal operation of the machine is ensured, the screw rod is protected from being influenced by the outside, mechanical equipment can be better protected, stretching or compressing movement of the equipment can be carried out along with the length of the screw rod through the protective cover monomers 4 formed by the telescopic sections, the flexibility and the adaptability of the screw rod are improved, different use requirements are met, and a large amount of space can be saved by the contracted protective cover monomer 4.

Claims (6)

1. A multisection lead screw lag, its characterized in that: including convex base (1), install annular fixed cover (2) on the inner wall of convex base (1) one side, install a plurality of lag monomer (4) on the outer wall of convex base (1) one side, mutually suit and sliding connection in proper order between a plurality of lag monomer (4), a plurality of install slider (3) that are used for sliding connection between lag monomer (4), every two install guard box (5) between lag monomer (4), slider (3) are located the inside of guard box (5), one of them install installation piece (6) on one side on lag monomer (4) top, the outer wall and the outmost one side outer wall interconnect of lag monomer (4) on installation piece (6) one side.

2. A multisection lead screw lag according to claim 1 wherein: the screw rod passing cavity (101) is arranged in the convex base (1), the fixing hole (201) is formed in the annular fixing sleeve (2), and the fixing hole (201) and the screw rod passing cavity (101) are coaxial.

3. A multisection lead screw lag according to claim 1 wherein: six protecting sleeve monomers (4) are arranged, and sliding grooves for sliding the sliding blocks (3) are formed in the outer walls of the two sides of each protecting sleeve monomer (4).

4. A multisection lead screw lag according to claim 1 wherein: the protective sleeve monomer (4) is made of a 45-steel member, and the annular fixing sleeve (2) is made of an epoxy resin material.

5. A multisection lead screw lag according to claim 1 wherein: the diameter of the annular fixing sleeve (2) is 14mm to 25mm.

6. A multisection lead screw lag according to claim 1 wherein: the gap between every two protecting sleeve monomers (4) is 0.5mm to 1mm.