CN213578969U

CN213578969U - Backer ruler with correcting mechanism

Info

Publication number: CN213578969U
Application number: CN202022974341.2U
Authority: CN
Inventors: 金响建
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-12-14
Filing date: 2020-12-14
Publication date: 2021-06-29
Anticipated expiration: 2030-12-14

Abstract

The utility model relates to a measuring tool field, specifically speaking the utility model relates to a take aligning gear's backer chi. The adjusting device comprises a ruler and a cam plate connected to the ruler, wherein the ruler is hinged to the cam plate through a hinge shaft, and a locking screw hole and an adjusting seat connecting hole are formed in the ruler; the adjusting seat is installed between the backer board and the adjusting seat connecting hole, the adjusting seat comprises an adjusting gear and a rack which is normally meshed with the adjusting gear, a long hole which runs through the body of the adjusting seat and is parallel to the backer board is formed in the rack, a limiting rod is installed in the long hole, and one end of the rack is connected to the adjusting seat connecting hole through a pin shaft. This back hill chi finely tunes the angle between ruler and the board of leaning on through adjusting the seat to the adjustment and correction angle compensate the error of production assembly or because the mechanical wear error that long-time use produced, reduce the required precision of production, assembly, increase of service life.

Description

Backer ruler with correcting mechanism

Technical Field

The utility model relates to a measuring tool field, specifically speaking the utility model relates to a take aligning gear's backer chi.

Background

The backing ruler is a common tool for manual work, and is generally formed by vertically connecting a strip-shaped ruler with small thickness with a backing plate with large thickness. However, due to mechanical wear and material aging deformation, the angle between the straightedge and the backer board may change slightly after a long period of use, affecting the accuracy of the measurement. In addition, in order to ensure the precision of a final product, the existing backer ruler has higher requirements on processing precision and materials in the production process, and once the assembly is finished, the backer ruler cannot be adjusted and corrected, so that the yield is low and the production cost is higher.

Disclosure of Invention

The utility model aims at solving current backer chi because assembly error perhaps uses the problem that deviation, unable correction appear in angle after wearing and tearing, provide a take aligning gear's backer chi.

The utility model discloses a backer ruler with a correction mechanism, which comprises a ruler and a backer board connected with the ruler, wherein the ruler is hinged with the backer board through a hinge shaft, and the ruler is provided with a locking screw hole and an adjusting seat connecting hole; an adjusting seat is arranged between the backer board and the adjusting seat connecting hole, the adjusting seat comprises an adjusting gear and a rack which is normally meshed with the adjusting gear, a long hole which penetrates through the rack body and is parallel to the backer board is arranged on the rack, a limiting rod is arranged in the long hole, and one end of the rack is connected to the adjusting seat connecting hole through a pin shaft; the backer board is that the inner chamber holds the square pipe of adjusting the seat, and the backer board thickness is greater than the ruler, the both ends fixed connection of gag lever post is on the inner wall of backer board.

The adjusting seat is installed between the two clamping plates, the two clamping plates are arranged in parallel, the two clamping plates are connected through the connecting rod, gear shaft installing holes are symmetrically formed in the two clamping plates, and wheel shafts inserted into the gear shaft installing holes are arranged at two ends of the adjusting gear.

In addition, a pinion which is normally meshed with the adjusting gear is arranged in an inner cavity of the cam plate, an inner hexagonal hole matched with the inner hexagonal wrench is formed in the center of the pinion, and a hollow window is formed in the outer wall of the cam plate and in the position corresponding to the inner hexagonal hole.

A connecting line between the connecting hole of the adjusting seat and the hinge shaft is in the same direction as the length direction of the ruler, and a connecting line between the locking screw hole and the hinge shaft is in the same direction as the width direction of the ruler; and a locking screw is arranged in the locking screw hole, and at least one end of the locking screw is connected to the backer board.

And an avoiding groove is formed in the side edge of the ruler and is formed in the other side of the adjusting seat connecting hole opposite to the hinge shaft.

The technical effect of the utility model lies in, this backer chi finely tunes the angle between ruler and the backer board through adjusting the seat to adjustment and correction angle compensate the error of production assembly or because the mechanical wear error that uses the production for a long time, reduce the required precision of production, assembly, increase of service life.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment of the present invention.

Fig. 2 is a schematic view of the construction of the straightedge.

Fig. 3 is a schematic structural view of the matching of the straight edge and the adjusting seat.

Fig. 4 is a schematic sectional view of the arm rest.

Fig. 5 is a schematic structural view of the clamping plate matched with the adjusting seat.

Fig. 6 is a partial sectional structure view of the left side surface of the clamping plate matched with the adjusting seat.

Detailed Description

The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses.

As shown in fig. 1, the hill-rest ruler with the correction mechanism in the embodiment includes a straight ruler 2 and a hill-rest board 1 connected to the straight ruler 2. The ruler 2 is of a flat and long strip structure with small thickness, and the backer board 1 is of a square tube structure with large thickness. The straight edge 2 and the backer board 1 intersect at a right angle of ninety degrees, but due to assembly error or abrasion, the included angle between the straight edge and the backer board may have a certain error, and the straight edge and the backer board can be used normally after being corrected.

The ruler 2 is hinged with the backer board 1 through a hinge shaft 3, and a locking screw hole 4 and an adjusting seat connecting hole 5 are formed in the ruler 2; a connecting line between the adjusting seat connecting hole 5 and the hinge shaft 3 is in the same direction as the length direction of the straight scale 2, and a connecting line between the locking screw hole 4 and the hinge shaft 3 is in the same direction as the width direction of the straight scale 2; the locking screw hole 4, the adjusting seat connecting hole 5 and the hinge shaft 3 form a triangular structure taking the hinge shaft 3 as a right-angle vertex. And a locking screw is arranged in the locking screw hole 4, and at least one end of the locking screw is connected to the backer board 1. When in usual use, the locking screw is screwed, the straight ruler 2 is firmly connected with the backer board 1, and the angle between the straight ruler and the backer board is fixed and can not be changed. When errors occur and need to be corrected, the locking screws are loosened, a small movable gap occurs between the ruler 2 and the backer board 1, and at the moment, the ruler 2 can slightly swing to change the angle between the ruler and the backer board 1, so that the purpose of correcting the angle is achieved. After the angle is corrected, the locking screw is screwed down again to fix the angle between the backer board 1 and the ruler 2.

The adjusting seat is installed between the backer board 1 and the adjusting seat connecting hole 5 and used for finely adjusting the distance between the backer board 1 and the adjusting seat connecting hole 5, so that the angle between the backer board 1 and the ruler 2 is changed and corrected.

As shown in fig. 1 and 3, the adjusting seat includes an adjusting gear 51 and a rack 52 constantly meshed with the adjusting gear 51, the rack 52 is provided with a long hole 53 penetrating through the body and parallel to the cam plate 1, a limit rod 55 is installed in the long hole 53, the limit rod 55 is used for limiting the moving distance of the rack 52, and the limit position of the rack 52 moving left and right is until the end of the long hole 53 touches the limit rod 55. One end of the rack 52 is connected to the adjusting seat connecting hole 5 through a pin shaft; when the adjusting gear 51 rotates, the rack 52 is driven to move left and right, the rack 52 drives the straight scale 2 to swing left and right through a pin shaft in the adjusting seat connecting hole 5, and the vertical angle of the straight scale 2 is finely adjusted, so that the purpose of correcting the angle is achieved.

As shown in fig. 4, the cam plate 1 is a square tube with an inner cavity for accommodating the adjusting seat, the thickness of the cam plate 1 is larger than that of the ruler 2, and two ends of the limiting rod 55 are fixedly connected to the inner wall of the cam plate 1.

As shown in fig. 5 and 6, the adjusting seat is installed between the two clamping plates 7, the two clamping plates 7 are arranged in parallel, the two clamping plates 7 are connected through the connecting rod 8, the connecting rod 8 comprises two thick sleeves and two thin sleeves which are respectively and fixedly connected to the inner side surfaces of the two clamping plates, the two sleeves are sleeved together to jointly form the connecting rod 8, the relative positions of the two clamping plates 7 are fixed, the connecting rod 8 is disassembled, then the two clamping plates 7 can be separated, and the installation of the adjusting gear 51 and the rack 52 is facilitated. Gear shaft mounting holes are symmetrically arranged on the two clamping plates 7, and wheel shafts 54 inserted in the gear shaft mounting holes are arranged at two ends of the adjusting gear 51, so that the adjusting gear 51 can freely rotate while being mounted between the two clamping plates 7. In addition, a pinion 56 which is normally meshed with the adjusting gear 51 is arranged in the inner cavity of the cam plate 1, an inner hexagonal hole matched with an inner hexagonal wrench is arranged at the center of the pinion 56, and a hollow window is arranged on the outer wall of the cam plate 1 and corresponds to the position of the inner hexagonal hole. When the adjustable ruler is used, an inner hexagonal wrench is inserted into the inner hexagonal hole to rotate the pinion 56 to drive the adjusting gear 51 to rotate, the adjusting gear 51 drives the rack 52 to move when rotating, and then the ruler 2 swings leftwards or rightwards through the rack 52.

In addition, as the utility model discloses a further improvement, be provided with on the side of ruler 2 and dodge groove 9, dodge groove 9 and set up the opposite side at the regulation seat connecting hole 5 relative with hinge 3. This dodge groove 9 forms a recessed recess on the side of ruler 2, can dodge the tip that leans on gable 1, makes the tip that leans on gable 1 have relatively great activity space, conveniently adjusts the correction.

Although some specific embodiments of the present invention have been described in detail by way of illustration, it should be understood by those skilled in the art that the above illustration is only for purposes of illustration and is not intended to limit the scope of the invention. It will be appreciated by those skilled in the art that modifications may be made to the above embodiments without departing from the scope and spirit of the invention. The scope of the invention is defined by the appended claims.

Claims

1. The backer ruler with the correcting mechanism comprises a ruler (2) and a backer plate (1) connected to the ruler (2), and is characterized in that the ruler (2) is hinged to the backer plate (1) through a hinge shaft (3), and a locking screw hole (4) and an adjusting seat connecting hole (5) are formed in the ruler (2); an adjusting seat is arranged between the backer board (1) and the adjusting seat connecting hole (5), the adjusting seat comprises an adjusting gear (51) and a rack (52) which is normally meshed with the adjusting gear (51), a long hole (53) which penetrates through the rack (52) and is parallel to the backer board (1) is arranged on the rack, a limiting rod (55) is arranged in the long hole (53), and one end of the rack (52) is connected to the adjusting seat connecting hole (5) through a pin shaft; lean on gable (1) to hold the square pipe of adjusting the seat for the inner chamber, the thickness that leans on gable (1) is greater than ruler (2), the both ends fixed connection of gag lever post (55) is on the inner wall that leans on gable (1).

2. The mountain ruler with the correcting mechanism is characterized in that the adjusting seat is installed between two clamping plates (7), the two clamping plates (7) are arranged in parallel, the two clamping plates (7) are connected through a connecting rod (8), gear shaft installing holes are symmetrically formed in the two clamping plates (7), and wheel shafts (54) inserted into the gear shaft installing holes are arranged at two ends of the adjusting gear (51).

3. The backer ruler with the correction mechanism according to claim 1 or 2, wherein a pinion (56) in constant meshing engagement with the adjusting gear (51) is mounted in the inner cavity of the backer plate (1), a hexagon socket hole matched with a hexagon socket wrench is arranged at the center of the pinion (56), and a hollow window is arranged on the outer wall of the backer plate (1) and at the position corresponding to the hexagon socket hole.

4. The backer ruler with the correction mechanism according to claim 1 or 2, wherein a connecting line between the adjusting seat connecting hole (5) and the hinge shaft (3) is in the same direction as the length direction of the straight ruler (2), and a connecting line between the locking screw hole (4) and the hinge shaft (3) is in the same direction as the width direction of the straight ruler (2); locking screws are installed in the locking screw holes (4), and at least one ends of the locking screws are connected to the backer board (1).

5. The tape guide according to claim 1 or 2, characterized in that the straightedge (2) is provided with an escape groove (9) on its side, which escape groove (9) is provided on the other side of the adjustment seat connection hole (5) opposite the hinge shaft (3).