CN219787700U - Armrest of floor grinding machine capable of randomly adjusting angle - Google Patents

Abstract

The utility model discloses a ground grinder handrail with any angle regulation, which comprises a supporting arm and a rotary positioning mechanism, wherein handles are arranged on two sides of the supporting arm, the rotary positioning mechanism comprises a gear housing, a limiting tooth block and a fixed gear, the limiting tooth block and the fixed gear can be meshed with each other, the fixed gear is arranged in the gear housing, the limiting tooth block moves linearly back and forth along the inside of the gear housing, the limiting tooth block is connected with a pulling device for pulling the limiting tooth block to move back and forth, and two ends of the fixed gear are fixed on a fixing frame. The advantages are that: the maintenance is free, the gear is smeared with lubricating oil during assembly, the inside is completely sealed, dust is not fed, maintenance work is not required during normal use, and the service life is long; the safety and reliability are realized, and the armrests are meshed and fixed with the rack through the multiple gears, so that the phenomenon of loosening of the armrests can not occur; the height is adjusted in a large range, the angle is adjusted by meshing gears, the angle is adjusted in a large range, the single support arm is designed, the adjustment is easy, the working efficiency is high, and the appearance is attractive.

Description

Armrest of floor grinding machine capable of randomly adjusting angle

Technical Field

The utility model relates to the technical field of ground construction equipment, in particular to a ground grinder handrail with an arbitrary angle.

Background

The ground grinder is multifunctional machine equipment integrating different processes of rapid sealing curing agent terrace, hardening terrace, epoxy terrace treatment, stone renovation, concrete leveling, grinding, polishing and the like, and has the characteristics of portability, flexibility, high working efficiency and the like.

In order to adapt to the height of constructors and facilitate storage, an adjusting device capable of adjusting the height or angle of the armrest of the grinder is generated, and the adjusting device is most traditional to be realized by using a locating pin, so that the locating pin needs to be plugged and pulled back and forth when the height or angle is adjusted each time, the use is complicated, and the working efficiency is affected. Later, for convenient use, on the basis of traditional height adjusting device, developed the adjusting device that need not the plug to and fro, like chinese patent publication No.: CN 213164514U and CN 209632756U both disclose a grinding machine armrest capable of being rotationally adjusted, a positioning rod is arranged on the armrest, positioning grooves with different angles are arranged on a rack, the armrest is clamped into the positioning grooves with different angles to adjust the angle of the armrest by pulling the positioning rod, the range of the adjusting angle is small due to the limited number of the clamping grooves, and the whole grinding machine is concentrated in the position by only clamping a single positioning rod, so that the clamping is not tight and loose after long-time use, and the service life is short; furthermore, because the grinding machine has part of dust to fly in the surrounding environment during operation, the locating rod and the locating groove are exposed outside, so that more dust is needed on the grinding machine, frequent dust cleaning is needed, and frequent oiling maintenance is needed if the grinding machine is used smoothly.

Disclosure of Invention

The utility model aims at overcoming the defects in the prior art and providing a floor grinding machine handrail with any angle. Solves the technical problems existing in the background technology.

The technical proposal is as follows: the utility model provides an arbitrary angle regulation's ground grinds machine handrail, includes the support arm, the both sides of support arm be equipped with the handle, still including fixed rotary positioning mechanism that sets up at the support arm is terminal, this rotary positioning mechanism includes the gear housing, sets up spacing tooth piece and fixed gear inside the gear housing, spacing tooth piece with fixed gear's teeth of a cogwheel set up relatively, spacing tooth piece with fixed gear can intermeshing, the gear housing with fixed gear's teeth of a cogwheel surround including, fixed gear follow the inside rotation of gear housing, spacing tooth piece along the inside back-and-forth rectilinear movement of gear housing, spacing tooth piece connect and be used for driving spacing tooth piece back-and-forth movement's pulling device, fixed gear's both ends fix on the mount.

Preferably, the gear housing comprises a fixed gear housing for placing the fixed gear and a limiting gear block housing for placing the limiting gear block, wherein round openings are formed at two ends of the fixed gear housing, so that two ends of the fixed gear are communicated with the outside, the limiting gear block is installed in an opening of the limiting gear block housing, the limiting gear block housing is fixedly connected with the fixed gear housing, and the opening of the limiting gear block housing extends to the inside of the fixed gear housing.

Preferably, the rotary positioning mechanism further comprises a cover shell cover fixedly arranged at the end part of the limiting tooth block cover, the cover shell cover comprises a cover plate and a guide tube fixedly connected with the other end of the cover plate, the inner cavity of the guide tube linearly extends to the outer surface of the cover plate, the pulling device is arranged in the guide tube, and the other end of the guide tube is provided with a guide hole smaller than the diameter of the guide tube.

Preferably, the fixed gear further comprises gear shafts arranged at two ends of the gear teeth, the rotary positioning mechanism further comprises gear shaft sleeves sleeved on the gear shafts, and the gear shaft sleeves are fixed at two ends of the fixed gear cover.

Preferably, the fixing frame comprises a fixing plate, clamping plates are vertically arranged at two ends of the fixing plate, positioning grooves are vertically formed in each clamping plate, protruding gear circumferential positioning blocks are arranged at two ends of the gear shaft, the gear circumferential positioning blocks are fixed in the positioning grooves, two gear shaft sleeves are arranged on the inner sides of the clamping plates, and the clamping plates are fixedly mounted with the gear shaft sleeves.

Preferably, the rotary positioning mechanism further comprises two end covers fixedly arranged on two sides of the clamping plate, gear radial positioning blocks are arranged on the upper portions of the inner sides of the two end covers, the depth of the positioning groove is larger than the height of the gear circumferential positioning blocks, the gear circumferential positioning blocks are arranged at the bottoms of the positioning grooves, the gear radial positioning blocks are fixed in the positioning grooves, and the gear radial positioning blocks are tightly fixed on the gear circumferential positioning blocks.

Preferably, the inside cavity structure that is of support arm, support arm one side be equipped with the opening, pulling device including setting up the inside adjustment handle and the connecting rod of support arm, the adjustment handle include the pull rod, one end of pull rod be equipped with the pin perpendicularly, support arm upper surface and lower surface be equipped with the shaft hole, the pin install in the shaft hole, the other end of pull rod pass through the opening stretch out to outside, be close to the position of the center of pull rod is equipped with the hinge hole, the hinge hole pass through the articulated elements with the tip of connecting rod articulates, the connecting rod run through the stand pipe, spacing tooth piece fixed connection.

Preferably, the rotary positioning mechanism further comprises a spring, the spring is inserted in the connecting rod between the limiting tooth block and the guide tube, and the outer diameter of the spring is smaller than the width of the limiting tooth block, smaller than the inner diameter of the guide tube and larger than the diameter of the guide hole.

Preferably, the end part of the supporting arm is sleeved and fixed in the limiting tooth block cover, the inner cavity surface of the supporting arm is tightly attached to the outer surface of the gear housing, the surface of the supporting arm is penetrated by a fixing piece, and the fixing piece is fixed on the limiting tooth block cover.

Preferably, the surfaces of the end cover, the fixing frame and the gear shaft sleeve are respectively provided with a fixing hole, screws are inserted into the fixing holes, screw holes are formed in the two end faces of the gear cover shell, and the screws are fixed in the screw holes.

Compared with the prior art, the utility model has the following advantages:

the maintenance is free, the gear is smeared with lubricating oil during assembly, the inside is completely sealed, dust is not fed, maintenance work is not required during normal use, and the service life is long; the safety and reliability are realized, and the armrests are meshed and fixed with the rack through the multiple gears, so that the phenomenon of loosening of the armrests can not occur; the height is adjusted in a large range, the angle is adjusted by meshing gears, the angle is adjusted in a large range, the single support arm is designed, the adjustment is easy, the working efficiency is high, the occupied space is small, and the appearance is attractive.

Drawings

FIG. 1 is a front view of the present utility model;

FIG. 2 is a cross-sectional view A-A of FIG. 1 in accordance with the present utility model;

FIG. 3 is a top view of the present utility model;

FIG. 4 is a cross-sectional view B-B of FIG. 3 in accordance with the present utility model;

FIG. 5 is a perspective view of the present utility model;

FIG. 6 is an exploded view of the present utility model;

FIG. 7 is a perspective view of the housing cover of the present utility model;

FIG. 8 is a perspective view of the gear housing of the present utility model;

FIG. 9 is a perspective view of the mount of the present utility model;

FIG. 10 is a perspective view of a fixed gear of the present utility model;

FIG. 11 is a perspective view of an end cap of the present utility model;

fig. 12 is a perspective view of the adjustment handle of the present utility model.

The gear comprises a gear housing, a gear housing cover, 111, a guide tube, 112, a cover plate, 113, a guide hole, 12, a spring, 13, a limiting gear block, 14, a gear housing, 141, a fixed gear housing, 142, a limiting gear block cover, 15, a gear shaft sleeve, 16, a fixed frame, 161, a fixed plate, 162, a clamping plate, 163, a positioning groove, 17, a fixed gear, 171, gear teeth, 172, a gear shaft, 173, a gear circumferential positioning block, 18, an end cover, 182, a gear radial positioning block, 2, a connecting rod, 3, an adjusting handle, 31, a pull rod, 32, a hinge hole, 33, a pin, 41, a supporting arm, 42, a handle, 43, a shaft hole, 44 and an opening.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

Referring to fig. 1-12, a ground grinder handrail with any angle of adjustment, including a support arm 41, handles 42 are arranged on two sides of the support arm 41, and a rotary positioning mechanism fixedly arranged at the tail end of the support arm 41 is further included, the rotary positioning mechanism includes a gear housing 14, a limiting tooth block 13 and a fixed gear 17 which are arranged in the gear housing 14, teeth of the limiting tooth block 13 are opposite to teeth 171 of the fixed gear 17, the limiting tooth block 13 and the fixed gear 17 can be meshed with each other, the gear housing 14 encloses teeth of the fixed gear 17, the fixed gear 17 can rotate in the gear housing 14, the limiting tooth block 13 moves linearly back and forth along the inside of the gear housing 14, the limiting tooth block 13 is connected with a pulling device for pulling the limiting tooth block 13 to move back and forth, and two ends of the fixed gear 17 are fixed on a fixed frame 16.

The gear housing 14 comprises a fixed gear cover 141 for placing the fixed gear 17 and a limiting gear block cover 142 for placing the limiting gear block 13, wherein round openings are formed at two ends of the fixed gear cover 141, so that two ends of the fixed gear 17 are communicated with the outside, the limiting gear block 13 is installed in an opening of the limiting gear block cover 142, the limiting gear block cover 142 is fixedly connected with the fixed gear cover 141, and the opening of the limiting gear block cover 142 extends to the inside of the fixed gear cover 141. The rotary positioning mechanism further comprises a housing cover 11 fixedly arranged at the end part of the limiting tooth block cover 142, the housing cover comprises a cover plate 112 and a guide tube 111 fixedly connected with the other end of the cover plate 112, an inner cavity of the guide tube 111 extends to the outer surface of the cover plate 112 in a straight line, a pulling device is arranged in the guide tube 111, and a guide hole 113 smaller than the diameter of the guide tube 111 is formed in the other end of the guide tube 111. The pulling device can move back and forth within the guide tube 111.

The fixed gear 17 further includes gear shafts 172 provided at both ends of the gear teeth 171, the rotational positioning mechanism further includes gear shaft sleeves 15 sleeved on the gear shafts 172, and the gear shaft sleeves 15 are fixed at both ends of the fixed gear cover 141. The gear sleeve 15 has a circular ring shape, and the circular ring is sleeved on the gear shafts 172 at two ends of the fixed gear 17, so that the gear sleeve 15 smoothly rotates around the fixed gear 17.

The fixing frame 16 comprises fixing plates 161, clamping plates 162 are vertically arranged at two ends of the fixing plates 161, positioning grooves 163 are vertically formed in each clamping plate 162, protruding gear circumferential positioning blocks 173 are arranged at two ends of a gear shaft 172, the gear circumferential positioning blocks 173 are fixed in the positioning grooves 163, two gear shaft sleeves 15 are arranged on the inner sides of the clamping plates 162, and the clamping plates 162 and the gear shaft sleeves 15 are fixedly mounted. The rotary positioning mechanism further comprises two end covers 18 fixedly arranged on two sides of the clamping plate 162, gear radial positioning blocks 182 are arranged on the upper portions of the inner sides of the two end covers 18, the depth of the positioning groove 163 is larger than the height of the gear circumferential positioning blocks 173, the gear circumferential positioning blocks 173 are arranged at the bottoms of the positioning groove 163, the gear radial positioning blocks 182 are fixed in the positioning groove 163, and the gear radial positioning blocks 182 are fixed close to the gear circumferential positioning blocks 173. The gear circumferential positioning block 173 is installed in the positioning groove 163 and used for limiting the rotation of the fixed gear 17 on the clamping plate 162, and the gear radial positioning block 182 is used for fixing the gear in the positioning groove 163 and preventing the gear from moving up and down.

The inside cavity structure that is of support arm 41, support arm 41 one side is equipped with opening 44, pulling means is including setting up at the inside adjustment handle 3 of support arm 41 and connecting rod 2, adjustment handle 3 includes pull rod 31, the one end of pull rod 31 is equipped with pin 33 perpendicularly, support arm 41 upper surface and lower surface are equipped with shaft hole 43, pin 33 installs in shaft hole 43, the other end of pull rod 31 stretches out outside through opening 44, the position that is close to the center of pull rod 31 is equipped with hinge hole 32, hinge hole 32 passes through the articulated elements and articulates with the tip of connecting rod 2, connecting rod 2 runs through stand pipe 111, with spacing tooth piece 13 fixed connection. The rotary positioning mechanism further comprises a spring 12, the spring 12 is inserted on the connecting rod 2 between the limiting tooth block 13 and the guide tube 111, and the outer diameter of the spring 12 is smaller than the width of the limiting tooth block, smaller than the inner diameter of the guide tube 111 and larger than the diameter of the guide hole 113.

The end part of the supporting arm 41 is sleeved and fixed in the limiting gear block cover 142, the inner cavity surface of the supporting arm 41 is closely attached to the outer surface of the gear housing 14, the surface of the supporting arm 41 is penetrated by a fixing piece, and the fixing piece is fixed on the limiting gear block cover 142.

The surfaces of the end cover 18, the fixing frame 16 and the gear shaft sleeve 15 are respectively provided with a fixing hole, screws are inserted into the fixing holes, screw holes are formed in the two end faces of the gear housing 14, and the screws are fixed in the screw holes.

The fixing plate 161 can be fixed on the frame of the grinder by welding or arranging bolts on the surface, the limiting tooth block 13 and the fixing gear 17 are meshed to fix the direction of the supporting arm 41 at ordinary times, when the grinder is used, the handle 42 is held by hand, the adjusting handle 3 is stirred, the adjusting handle 3 drives the connecting rod 2 connected with the adjusting handle 3 to move backwards, the connecting rod 2 is fixedly connected with the limiting tooth block 13, the limiting tooth block 13 can only move forwards and backwards in the limiting tooth block housing 142, at the moment, the limiting tooth block 13 is separated from the fixing gear 17, the fixing gear cover 141 is fixed with the gear shaft sleeves 15 at two ends of the fixing gear cover, namely the gear shaft sleeves 15 can rotate along the fixing gear 17, and the fixing gear 17 is fixed on the fixing frame 16 through the gear circumferential positioning blocks 173 and the gear radial positioning blocks 182 at two ends of the fixing gear 17, namely the supporting arm 41 can rotate relative to the fixing frame 16. When the proper angle is adjusted, the adjusting handle 3 is loosened, the limiting tooth block 13 connected with the connecting rod 2 is reset by means of the spring 12 arranged in the guide tube 111, and the limiting tooth block 13 is meshed and fixed with the fixed gear 17 again.

The structure and connection relationship not mentioned are all common knowledge.

The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.

Claims (10)

1. The utility model provides a floor grinding machine handrail of arbitrary angle regulation, includes the support arm, the both sides of support arm be equipped with handle, its characterized in that: the rotary positioning mechanism comprises a gear housing, a limiting tooth block and a fixed gear, wherein the limiting tooth block and the fixed gear are arranged in the gear housing, the limiting tooth block and the gear teeth of the fixed gear are arranged opposite to each other, the limiting tooth block and the fixed gear can be meshed with each other, the gear housing surrounds the gear teeth of the fixed gear, the fixed gear rotates along the inside of the gear housing, the limiting tooth block linearly moves back and forth along the inside of the gear housing, the limiting tooth block is connected with a pulling device for pulling the limiting tooth block to move back and forth, and two ends of the fixed gear are fixed on a fixing frame.

2. The floor grinding mill armrest of any angle of adjustment of claim 1, wherein: the gear housing comprises a fixed gear housing for placing the fixed gear and a limit gear block housing for placing the limit gear block, wherein round openings are formed in two ends of the fixed gear housing, so that two ends of the fixed gear are communicated with the outside, the limit gear block is installed in an opening of the limit gear block housing, the limit gear block housing is fixedly connected with the fixed gear housing, and the opening of the limit gear block housing extends to the inside of the fixed gear housing.

3. The floor grinding mill armrest of any angle of adjustment of claim 2, wherein: the rotary positioning mechanism also comprises a cover shell cover fixedly arranged at the end part of the limiting tooth block cover, the cover shell cover comprises a cover plate and a guide pipe fixedly connected with the other end of the cover plate, the inner cavity of the guide pipe linearly extends to the outer surface of the cover plate, the guide pipe is internally provided with a pulling device, and the other end of the guide pipe is provided with a guide hole smaller than the diameter of the guide pipe.

4. A floor grinding mill armrest of any angle of adjustment as set forth in claim 3 wherein: the fixed gear also comprises gear shafts arranged at two ends of the gear teeth, the rotary positioning mechanism also comprises gear shaft sleeves sleeved on the gear shafts, and the gear shaft sleeves are fixed at two ends of the fixed gear cover.

5. The floor grinding mill armrest of any angle of adjustment of claim 4, wherein: the fixing frame comprises fixing plates, clamping plates are vertically arranged at two ends of each fixing plate, positioning grooves are vertically formed in each clamping plate, protruding gear circumferential positioning blocks are arranged at two ends of the gear shaft, the gear circumferential positioning blocks are fixed in the positioning grooves, two gear shaft sleeves are arranged on the inner sides of the clamping plates, and the clamping plates are fixedly mounted with the gear shaft sleeves.

6. The floor grinding mill armrest of any angle of adjustment of claim 5, wherein: the rotary positioning mechanism further comprises two end covers fixedly arranged on two sides of the clamping plate, gear radial positioning blocks are arranged on the upper portions of the inner sides of the two end covers, the depth of the positioning groove is larger than the height of the gear circumferential positioning blocks, the gear circumferential positioning blocks are arranged at the bottoms of the positioning grooves, the gear radial positioning blocks are fixed in the positioning grooves, and the gear radial positioning blocks are fixed close to the gear circumferential positioning blocks.

7. A floor grinding mill armrest according to any one of claims 3-6, characterized in that: the support arm inside be cavity structure, support arm one side be equipped with the opening, pulling device including setting up support arm inside adjustment handle and connecting rod, the adjustment handle include the pull rod, one end of pull rod be equipped with the pin perpendicularly, support arm upper surface and lower surface be equipped with the shaft hole, the pin install in the shaft hole, the other end of pull rod pass through the opening stretch out to outside, be close to the position of the center of pull rod is equipped with the hinge hole, the hinge hole pass through the hinge with the tip of connecting rod articulates, the connecting rod run through the stand pipe, spacing tooth piece fixed connection.

8. The floor grinding mill armrest of any angle of adjustment of claim 7, wherein: the rotary positioning mechanism also comprises a spring, wherein the spring is inserted on the connecting rod between the limiting tooth block and the guide tube, and the outer diameter of the spring is smaller than the width of the limiting tooth block, smaller than the inner diameter of the guide tube and larger than the diameter of the guide hole.

9. The floor grinding mill armrest of any angle of adjustment of claim 8, wherein: the end part of the supporting arm is sleeved and fixed in the limiting tooth block cover, the inner cavity surface of the supporting arm is tightly attached to the outer surface of the gear housing, the surface of the supporting arm is penetrated by a fixing piece, and the fixing piece is fixed on the limiting tooth block cover.

10. The floor grinding mill armrest of claim 6, wherein: the gear cover is characterized in that fixing holes are respectively formed in the surfaces of the end cover, the fixing frame and the gear shaft sleeve, screws are inserted into the fixing holes, screw holes are formed in the two end faces of the gear cover shell, and the screws are fixed in the screw holes.