Dustproof device for brush of stay wire rope

Abstract

The utility model relates to a brush dustproof device for a stay wire rope, which is mounted at a wire outlet port of a stay wire displacement sensor and comprises a fixing sleeve, the upper end and the lower end of the fixing sleeve are open, the length of the fixing sleeve is larger than that of the wire outlet port, and the fixing sleeve sleeves the outer side of the wire outlet port and is fixedly connected with the wire outlet port through a transverse jackscrew. An upper brush and a lower brush which are arranged in an up-down staggered mode are installed between the upper end opening and the wire outlet port in the fixing sleeve, bristles of the two brushes extend in the axis direction of the fixing sleeve and at least extend to the axis of the fixing sleeve, and an inner cavity of the fixing sleeve is divided into an upper part and a lower part through the bristles. According to the utility model, dust on the stay wire rope can be brushed and swept by using the upper brush and the lower brush which are arranged in an up-and-down staggered manner, so that dust and greasy dirt are effectively prevented from entering the stay wire displacement sensor, and the service life of the stay wire displacement sensor is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of pull-wire sensors, in particular to a pull-wire rope brush dust-proof device. Background Art

[0002] Draw-wire displacement sensors are also known as draw-wire sensors, draw-wire electronic rulers, and draw-wire encoders. They are a sophisticated structural design of linear displacement sensors, combining the advantages of both angle and linear displacement sensors. The resulting sensor offers a small footprint, compact structure, a large measuring range, and high accuracy. Travels range from a few hundred millimeters to tens of meters.

[0003] Due to the structural problems of the pull rope, foreign matter such as sand, dust, powder, and oil will be brought back during the retraction process of the pull rope, causing the pull rope to be blocked by foreign matter, resulting in problems such as jamming, corrosion, wear, and damage to internal electrical components. Utility Model Content

[0004] In response to the shortcomings of the existing technology, the utility model provides a wire rope brush dust prevention device, which can use two upper brushes and lower brushes arranged alternately up and down to brush the dust on the wire rope, effectively blocking and removing dust and oil from entering the wire rope displacement sensor, thereby extending the service life of the wire rope displacement sensor.

[0005] The utility model is achieved through the following technical solutions:

[0006] A pull-wire brush dust-proof device is provided, which is installed at the outlet port of a pull-wire displacement sensor. The device comprises a fixed sleeve with upper and lower ends open and a length greater than the length of the outlet port. The fixed sleeve is arranged on the outside of the outlet port and is connected and fixed to the outlet port through a transverse top screw. Two upper brushes and a lower brush are installed in the fixed sleeve between the upper end opening and the outlet port, and the bristles of the two brushes extend toward the axis of the fixed sleeve and at least extend to the axis of the fixed sleeve, and the inner cavity of the fixed sleeve is divided into upper and lower parts by the bristles.

[0007] This solution is achieved by designing a fixed sleeve to be installed at the wire outlet port. The fixed sleeve uses the upper brush and the lower brush that are staggered on the upper sleeve to brush and clean the wire rope, thereby sealing the wire outlet port, effectively blocking and removing dust and oil from entering, and extending the service life of the wire displacement sensor.

[0008] Furthermore, the brush includes a brush handle and bristles evenly arranged along the length of the brush handle. The inner wall of the fixed sleeve is respectively provided with support holes at both ends of the brush handle for the brush handle and the bristles to pass through. The two ends of the brush handle are respectively supported in the support holes. A threaded hole is correspondingly provided on the open annular surface at the upper end of the fixed sleeve just above each brush handle, and a vertical screw for tightening and fixing the brush handle is threadedly connected in the threaded hole.

[0009] The brush is supported by the brush handle in the supporting through hole on the inner wall of the fixed sleeve, and the brush handle is positioned and fixed in the supporting through hole with the help of the vertical top screw in the threaded hole. At the same time, the supporting through hole can be used for the horizontal passage of the entire brush, which is convenient for replacing the brush. At the same time, the magazines generated by the brushing of the pull rope can also be discharged out of the fixed sleeve through the support through hole guided by the brush, so as to prevent them from entering the interior of the pull wire displacement sensor through the outlet port.

[0010] Furthermore, a threaded channel is vertically opened above each supporting through hole, and each brush handle is fixed to the fixing sleeve via two vertical top screws.

[0011] There are two threaded holes, which correspond to the supporting through holes respectively. Two vertical jackscrews are used to tighten and fix the two ends of the brush handle, which can ensure the stability of the brush and the brushing effect of dust and impurities.

[0012] Furthermore, the bottom surface of the bristles of the upper brush contacts the top surface of the bristles of the lower brush.

[0013] The upper brush and the lower brush are set close to each other, and the bristles of the two brushes are in contact with each other, which can effectively achieve the brushing effect on the pull wire rope and prevent dust and impurities from falling into the interior of the pull wire displacement sensor.

[0014] Furthermore, a dust collecting funnel is connected to the inner wall of the fixed sleeve between the lower brush and the outlet port. The outer diameter of the upper end of the dust collecting funnel is the same as the inner diameter of the fixed sleeve. A dust collecting ring with a cavity inside is installed at the lower end of the dust collecting funnel. The inner wall of the dust collecting ring is provided with several annular combing line protrusions that can contact the pull rope. Dust suction holes connected to the inner cavity are evenly opened in the groove between two adjacent combing line protrusions. A dust suction pipe connected to the inner cavity is connected to the dust collecting ring.

[0015] By setting up a dust collecting funnel, the dust and impurities that pass through the brush can be collected, and the dust suction hole and the dust suction tube can be used to completely adsorb them. At the same time, the combing line protrusion is used to comb the outer surface of the pull rope for the second time, and the combed impurities are sent into the dust suction tube through the same diameter adsorption port to complete the adsorption of impurities and prevent impurities from entering the interior of the pull wire displacement sensor.

[0016] Beneficial effects of the utility model:

[0017] This new fixing sleeve, secured to the outlet port with a transverse screw, features self-centering installation, ensuring a sturdy and stable installation while also allowing for adjustable tolerances. Suitable for various types of cable displacement sensors, the fixing sleeve features staggered upper and lower brushes near the upper port to clean the cable, effectively blocking and removing dust and oil.

[0018] The outer circumference of the fixed sleeve corresponds to the supporting through holes designed for the brush to pass through, which facilitates the installation and adjustment of the dust-proof brush. The vertical top screw on the top can quickly complete the installation and replacement of the brush, which is very practical.

[0019] The dust collection funnel designed below the lower brush cooperates with the dust collection ring at the bottom to perform secondary cleaning of the pull wire rope, and suck the cleaned dust and impurities into the dust collection pipe through the dust collection hole, which greatly improves the adsorption efficiency of dust and impurities, reduces the probability of entering the interior of the pull wire displacement sensor, and extends its service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the use of Example 1 of the present utility model.

[0021] Figure 2 for Figure 1 Schematic diagram of the structure of the fixed sleeve.

[0022] Figure 3 for Figure 1 A magnified schematic diagram of .

[0023] Figure 4 for Figure 2 Schematic diagram of a three-dimensional cross section.

[0024] Figure 5 This is a schematic structural diagram of Example 2 of the present utility model.

[0025] Figure 6 for Figure 5 Schematic cross-section of the dust collecting ring.

[0026] As shown in the figure:

[0027] 1. Pull wire displacement sensor, 2. Wire outlet port, 3. Fixing sleeve, 4. Pull head, 5. Pull wire rope, 6. Horizontal top screw, 7. Vertical top screw, 8. Support through hole, 9. Lower brush, 10. Upper brush, 11. Brush handle, 12. Threaded hole, 13. Dust collecting funnel, 14. Dust suction pipe, 15. Dust collecting ring, 16. Comb line protrusion, 17. Dust suction hole. DETAILED DESCRIPTION

[0028] In order to clearly illustrate the technical features of this solution, this solution is described below through specific implementation methods.

[0029] like Figure 1-4As shown, a pull rope brush dust-proof device is installed on the outlet port 2 of the pull wire displacement sensor 1, including a fixed sleeve 3 with upper and lower ends open and a length greater than the length of the outlet port 2, the fixed sleeve 3 is arranged on the outside of the outlet port 2 and is connected and fixed to the outlet port 2 through a transverse top screw 6, and two upper brushes 10 and lower brushes 9 are installed in the fixed sleeve 3 between the upper end opening and the outlet port 2, and the bristles of the two brushes extend toward the axis of the fixed sleeve 3 and at least extend to the axis of the fixed sleeve 3, and the inner cavity of the fixed sleeve 3 is divided into two upper and lower parts by the bristles.

[0030] The brush includes a brush handle 11 and bristles evenly arranged along the length direction of the brush handle 11 . The bottom surface of the bristles of the upper brush 10 contacts the top surface of the bristles of the lower brush 9 .

[0031] The inner wall of the fixing sleeve 3 is provided with support holes 8 at both ends of the brush handle 11, respectively, for the brush handle 11 and the bristles to pass through. The two ends of the brush handle 11 are supported in the support holes 8. The upper open annular surface of the fixing sleeve 3 is provided with a threaded hole 12 corresponding to the position directly above each brush handle 11. Vertical jackscrews 7 for tightening and fixing the brush handle 11 are threadedly connected in the threaded hole 12. The threaded hole 12 is vertically opened above each support hole 8. Each brush handle 11 is tightened and fixed to the fixing sleeve 3 by two vertical jackscrews 7 above.

[0032] Installation process of this utility model:

[0033] After the brush is removed from the fixing sleeve 3, the brush handle 11 is tightened and fixed to the fixing sleeve 3. The brush handles 11 of the brushes are respectively supported on the supporting holes 8 on the inner wall of the fixing sleeve 3. The vertical top screws 7 are respectively used to enter the threaded holes 12 to tighten and fix the two ends of the brush handles 11, so that the lower brush 9 and the upper brush 10 are respectively installed in the fixing sleeve 3, and the bristles of the upper brush 9 and the lower brush 10 are respectively oriented towards the axis of the fixing sleeve 3 and exceed the axis of the fixing sleeve 3, so that the bristles of the two can block the inner cavity of the fixing sleeve 3. Then the fixing sleeve 3 with the installed brushes is put on the outlet port, and the fixing sleeve 3 and the outlet port 2 are tightened and fixed by the horizontal top screws 6. The pull rope 5 passes through the bristles of the lower brush 9 and the upper brush 10 and passes through the fixing sleeve 3. The upper brush 9 and the lower brush 10 can be used to comb and clean the pull rope 5 to prevent dust and impurities from entering the interior of the pull-wire displacement sensor 1 and extend its service life.

[0034] Example 2:

[0035] like Figure 5As shown, this embodiment adds a dust collecting funnel 13 on the basis of embodiment 1. The inner wall of the fixed sleeve 3 is connected with a dust collecting funnel 13 between the lower brush 9 and the outlet port 2. The outer diameter of the upper end of the dust collecting funnel 13 is the same as the inner diameter of the fixed sleeve 3. The lower end of the dust collecting funnel 13 is installed with a dust collecting ring 15 with a cavity inside. The inner wall of the dust collecting ring 15 is provided with a plurality of annular combing protrusions 16 that can contact the pull rope 5, as shown in FIG. Figure 6 As shown, dust suction holes 17 communicating with the inner cavity are evenly opened in the groove between two adjacent comb line protrusions 16, and a dust suction pipe 14 communicating with the inner cavity is connected to the dust collecting ring 15.

[0036] After the upper brush 10 and the lower brush 9 comb and clean the pull wire 5, most of the dust and impurities can be filtered out, and a very small amount of residual impurities will pass through the brush. When they are collected by the dust collecting funnel 13 and pass through the dust collecting ring 15, the combing wire protrusion 16 performs secondary combing and cleaning. The cleaned dust will be absorbed by the dust suction pipe 14 through the dust suction hole 17, further improving the dust prevention effect and cutting off the dust from entering the interior of the pull wire displacement sensor 1.

[0037] Of course, the above description is not limited to the above examples. The technical features not described in the present invention can be achieved through or by adopting existing technologies, and will not be repeated here. The above embodiments and drawings are only used to illustrate the technical solution of the present invention and are not limitations of the present invention. The present invention is described in detail with reference to the preferred implementation methods. Ordinary technicians in this field should understand that the changes, modifications, additions or substitutions made by ordinary technicians in this technical field within the essential scope of the present invention do not depart from the purpose of the present invention and should also fall within the scope of protection of the claims of the present invention.

Claims

1. A wire rope brush dust prevention device, installed at the outlet port of a wire displacement sensor, characterized by: It includes a fixing sleeve with upper and lower ends open and a length greater than the length of the outlet port. The fixing sleeve is arranged on the outside of the outlet port and is connected and fixed to the outlet port through a transverse top screw. Two upper brushes and lower brushes are installed in the fixing sleeve between the upper end opening and the outlet port, and the bristles of the two brushes extend toward the axis of the fixing sleeve and at least extend to the axis of the fixing sleeve, and the inner cavity of the fixing sleeve is divided into upper and lower parts by the bristles.

2. The pull rope brush dust-proof device according to claim 1, characterized in that: The brush includes a brush handle and bristles evenly arranged along the length of the brush handle. Support through holes are respectively opened on the inner wall of the fixed sleeve corresponding to the two ends of the brush handle for the brush handle and the bristles to pass through. The two ends of the brush handle are respectively supported in the support through holes. A threaded hole is correspondingly opened on the open annular surface of the upper end of the fixed sleeve just above each brush handle, and a vertical top screw for tightening and fixing the brush handle is threadedly connected in the threaded hole.

3. The pull rope brush dust-proof device according to claim 2, characterized in that: The threaded channel is vertically opened above each supporting through hole, and the top of each brush handle is tightly fixed to the fixing sleeve through two vertical jack screws.

4. The pull rope brush dust-proof device according to claim 1, characterized in that: The bottom surface of the bristles of the upper brush contacts the top surface of the bristles of the lower brush.

5. The pull rope brush dust-proof device according to claim 1, characterized in that: A dust collecting funnel is connected to the inner wall of the fixed sleeve between the lower brush and the outlet port. The outer diameter of the upper end of the dust collecting funnel is the same as the inner diameter of the fixed sleeve. A dust collecting ring with a cavity inside is installed at the lower end of the dust collecting funnel. The inner wall of the dust collecting ring is provided with several annular combing line protrusions that can contact the pull rope. Dust suction holes connected to the inner cavity are evenly opened in the groove between two adjacent combing line protrusions. A dust suction pipe connected to the inner cavity is connected to the dust collecting ring.

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