CN210441854U

CN210441854U - Distance measuring device

Info

Publication number: CN210441854U
Application number: CN201921906265.2U
Authority: CN
Inventors: 杨凌达; 徐敏清
Original assignee: Fuzhou Pengxiang Survey And Design Co Ltd
Current assignee: Fuzhou Pengxiang Survey And Design Co Ltd
Priority date: 2019-11-06
Filing date: 2019-11-06
Publication date: 2020-05-01
Anticipated expiration: 2029-11-06

Abstract

The utility model discloses a distance measuring device, which comprises a distance measuring wheel and a first rotating shaft rotationally connected with the distance measuring wheel, wherein the distance measuring wheel is provided with a push rod, one end of the first rotating shaft extends out of the distance measuring wheel and is provided with an auxiliary mechanism, the auxiliary mechanism comprises a cross rod, the periphery of the cross rod is connected with a first convex strip, the periphery of the first rotating shaft is connected with a second convex strip, the distance measuring device also comprises a positioning component which enables the first convex strip and the second convex strip to be level, the cross rod is slidably connected with a fixed ring, one end of the fixed ring is provided with a stop block, the stop block is provided with a chute for slidably connecting the first convex strip and the second convex, the fixing ring is connected with the second convex strip in a sliding way, the first rotating shaft is provided with a limiting piece, when the fixing ring is abutted against the limiting piece, the second sand grip breaks away from the spout, rotates solid fixed ring, and spout and second sand grip dislocation, the auxiliary wheel is installed to the other end of horizontal pole. The utility model has the advantages that avoid range finding wheel and horizontal pole to take place the condition emergence of screw thread wearing and tearing.

Description

Distance measuring device

Technical Field

The utility model belongs to the technical field of the survey and drawing and specifically relates to a range unit is related to.

Background

Current range unit is including the range finding wheel, and the range finding wheel is also known as mechanical distance measuring car, digital display range finding wheel and measuring wheel, and the wide application is in measurement and the aassessment of professional survey and drawing operation.

The prior distance measuring wheel is disclosed in patent publication No. CN 207556384U: including the range finding wheel, one side of range finding wheel is provided with the push rod that is used for driving the range finding wheel to remove, and the opposite side is provided with the complementary unit who enables the range finding wheel and keep rectilinear movement, and complementary unit includes horizontal pole location complementary unit, and the screw hole is seted up along the axle center in the first pivot of range finding wheel, and the one end of horizontal pole is connected and set up the external screw thread with this screw hole looks adaptation with first pivot, and the horizontal pole passes through this screw hole threaded connection with the first pivot of range finding wheel, and the other end and the location complementary unit of horizontal pole are.

The above prior art solutions have the following drawbacks: the distance measuring wheel is connected with the distance measuring wheel and the cross rod through threads when in use, and the cross rod is detached to be conveniently stored after the use is finished, so that the distance measuring wheel and the cross rod need to be frequently detached or installed, and the situation of thread abrasion is easy to exist.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a range unit, the advantage makes things convenient for complementary unit to install on the range finding wheel, avoids range finding wheel and horizontal pole to take place the condition emergence of screw thread wearing and tearing.

The above object of the present invention can be achieved by the following technical solutions:

a distance measuring device comprises a distance measuring wheel and a first rotating shaft which is connected with the distance measuring wheel in a rotating manner, the distance measuring wheel is provided with a push rod for driving the distance measuring wheel to move, one end of the first rotating shaft extends out of the distance measuring wheel to be provided with an auxiliary mechanism which comprises a cross rod, the cross sections of the cross rod and the first rotating shaft are both circular and have the same radius, the periphery of one end, close to the first rotating shaft, of the cross rod is connected with a first convex strip along the length direction, the periphery of one end, close to the cross rod, of the first rotating shaft is connected with a second convex strip along the length direction, a positioning assembly which enables the first convex strip to be flush with the second convex strip is arranged between the cross rod and the first rotating shaft, the cross rod is connected with a fixing ring in a sliding manner, one end, close to the first rotating shaft, of the fixing ring is provided with, first pivot is provided with the gliding locating part of restriction solid fixed ring, and solid fixed ring's the other end is provided with the stopper, and when solid fixed ring formed the butt with the locating part, first sand grip formed the butt with the stopper, and the second sand grip breaks away from the spout, rotates solid fixed ring, and spout and second sand grip dislocation, second sand grip and dog inner wall butt, the auxiliary wheel is installed to the other end of horizontal pole.

Through adopting above-mentioned technical scheme, when promoting the push rod and ordering about the removal of range finding wheel, the range finding wheel keeps rectilinear movement through complementary unit, and complementary unit includes the horizontal pole, and when the horizontal pole was connected with the fixed axle, gliding solid fixed ring passed through spout and first pivot sliding connection on the horizontal pole, and solid fixed ring has been restricted the slip range by the locating part of first pivot, and when solid fixed ring and locating part butt, the second sand grip breaks away from the spout, and first sand grip forms the butt with the locating part. Rotate solid fixed ring, second sand grip and spout dislocation, the second sand grip forms the butt with the inner wall of dog to be in the same place horizontal pole and first pivot fixed connection, make things convenient for complementary unit to install on the range finding wheel, avoid range finding wheel and horizontal pole to take place the condition emergence of screw thread wearing and tearing. The horizontal pole passes through locating component and is connected the messenger first sand grip and the parallel and level of second sand grip through the specific position of first pivot, convenient solid fixed ring with first sand grip and second sand grip sliding connection.

The utility model discloses further set up to: the locating component comprises a locating rod fixedly connected with one end of the cross rod and a locating hole formed in one end of the first rotating shaft, when the cross rod is connected with the first rotating shaft, the locating hole is matched with the locating rod, the outer wall of the locating rod is connected with a locating strip, and the inner wall of the locating hole is provided with a locating groove in sliding connection with the locating strip.

Through adopting above-mentioned technical scheme, through location strip and constant head tank, make the location between horizontal pole and the first pivot connect easy operation.

The utility model discloses further set up to: the locating part is the protruding edge of annular, and the protruding edge of annular is provided with the butt subassembly that is used for supporting solid fixed ring.

Through adopting above-mentioned technical scheme, when solid fixed ring and annular protruding along the butt, support tight subassembly and make solid fixed ring supported tightly, difficult rotation after making solid fixed ring's spout and the dislocation of second sand grip makes the horizontal pole be in the same place with the better fixed connection of first pivot.

The utility model discloses further set up to: the butt subassembly is including seting up at the protruding butt groove that is close to second sand grip one side of annular and installing the spring at the butt inslot, the one end fixedly connected with butt piece of spring, the other end of spring and the tank bottom fixed connection in butt groove, butt piece and butt groove sliding connection, one side of butt piece and solid fixed ring's border formation butt.

Through adopting above-mentioned technical scheme, when solid fixed ring and butt piece butt, the butt piece has certain reaction force and makes the inner wall of dog and second sand grip butt more closely together, makes solid fixed ring fix between horizontal pole and the first pivot better.

The utility model discloses further set up to: the vertical rod is fixedly connected to one end of the cross rod in a vertical mode, the auxiliary wheel is in interference fit with the bearing, the first rotating shaft is fixedly connected to the inner ring of the bearing, and the lower end of the vertical rod is fixedly connected with the first rotating shaft in a vertical mode.

Through adopting above-mentioned technical scheme, through the bearing, make the auxiliary wheel slide smoothly on the ground.

The utility model discloses further set up to: the cross bar and the vertical bar are integrally formed.

Through adopting above-mentioned technical scheme, integrated into one piece between horizontal pole and the montant, machining efficiency is high, saves the cost.

The utility model discloses further set up to: the push rod is the telescopic link, including dead lever and with dead lever sliding connection's slide bar, the dead lever is hollow structure, the one end of slide bar sliding connection in the dead lever, the other end and the range finding wheel fixed connection of dead lever are provided with the adjusting part of regulation push rod length between dead lever and the slide bar.

Through adopting above-mentioned technical scheme, owing to the staff height that uses range unit is also different, so the push rod is the telescopic link, through adjusting part, can adjust the push rod according to the staff of co-altitude not, makes the push rod adapt to staff's height to make the staff more laborsaving when using range unit.

The utility model discloses further set up to: the adjusting assembly comprises a plurality of first through holes formed in the outer wall of the fixing rod, the first through holes are distributed at equal intervals in the length direction of the fixing rod, the adjusting assembly further comprises a second through hole formed in the outer wall of the sliding rod, the second through hole is communicated with the first through holes respectively when the sliding rod slides, the adjusting assembly further comprises a pin inserted into the second through hole, and the pin penetrates through the first through holes and is inserted into the second through hole.

Through adopting above-mentioned technical scheme, because a plurality of first through-holes are along the length direction evenly distributed of fixed rod, the round pin passes different first through-holes and pegs graft with the second through-hole, just can adjust the length to different with the push rod, through the round pin, makes things convenient for the staff to adjust the length of push rod.

To sum up, the utility model discloses a beneficial technological effect does:

1. the auxiliary mechanism makes the cross rod and the first rotating shaft fixedly connected together through the fixing ring, so that the auxiliary mechanism is conveniently installed on the distance measuring wheel, and the situation that the threads are abraded when large torsion is applied to the cross rod is avoided.

2. Through locating component, when making horizontal pole and first pivot connection, first sand grip and second sand grip parallel and level make things convenient for solid fixed ring and first sand grip and second sand grip sliding connection.

3. Through the length of adjusting the push rod of adjusting part, range unit is suitable for the staff of co-altitude not.

Drawings

FIG. 1 is a schematic view of the overall structure of the present embodiment;

FIG. 2 is a schematic view of a partial explosion in the present embodiment;

FIG. 3 is a schematic view of the structure at A in FIG. 2;

FIG. 4 is a schematic view showing the state where the cross bar and the first rotating shaft are connected together by the positioning assembly according to the present embodiment;

FIG. 5 is a schematic view of a retaining ring according to the present embodiment;

FIG. 6 is a schematic vertical sectional view of the first rotating shaft of the present embodiment;

fig. 7 is a schematic structural diagram of the push rod and the adjusting assembly of the present embodiment.

Description of reference numerals: 1. a distance measuring wheel; 2. a first rotating shaft; 21. an annular convex edge; 22. positioning holes; 23. positioning a groove; 24. a second convex strip; 3. a push rod; 4. a handle; 5. a cross bar; 51. a first rib; 52. positioning a rod; 53. a positioning bar; 6. a fixing ring; 61. a stopper; 62. a chute; 63. a limiting block; 7. a butt joint groove; 71. a spring; 72. a butting block; 8. a vertical rod; 9. a second rotating shaft; 10. a bearing; 11. an auxiliary wheel; 12. fixing the rod; 121. a first through hole; 13. a slide bar; 131. a second through hole; 14. and (4) a pin.

Detailed Description

Example (b):

a distance measuring device, as shown in fig. 1, comprises a distance measuring wheel 1 and a first rotating shaft 2 rotatably connected with the distance measuring wheel 1. The distance measuring wheel 1 is provided with a push rod 3 for driving the distance measuring wheel 1 to move, and one end of the first rotating shaft 2 extends out of the distance measuring wheel 1 to be provided with an auxiliary mechanism for enabling the distance measuring wheel 1 to keep running in a straight line. The auxiliary mechanism comprises a cross rod 5, one end of the cross rod 5 is detachably connected with the first rotating shaft 2, the cross section of the cross rod 5 is circular, and the radius of the cross rod 5 is the same as that of the first rotating shaft 2.

As shown in fig. 3 and 4, the lateral bar 5 is connected with two first protruding strips 51 along the length direction near one end of the first rotating shaft 2, the two first protruding strips 51 are symmetrically arranged with the axis of the lateral bar 5 as the symmetric center, the second protruding strip 24 is connected with the first rotating shaft 2 near one end of the lateral bar 5 along the length direction, and the two second protruding strips 24 are symmetrically arranged with the axis of the first rotating shaft 2. First sand grip 51 and the equal width of second sand grip 24, be provided with the locating component who makes first sand grip 51 and the 24 parallel and level of second sand grip between horizontal pole 5 and first pivot 2, locating component includes the locating lever 52 with 5 one end fixed connection of horizontal pole and sets up the locating hole 22 in 2 one end of first pivot, horizontal pole 5 is connected with first pivot 2, locating hole 22 and locating lever 52 looks adaptation, the outer wall connection of locating lever 52 has locating bar 53, locating hole 22's inner wall is seted up with locating bar 53 sliding connection's constant head tank 23.

As shown in fig. 4 and 5, the fixing ring 6 is slidably connected to the cross bar 5, a stopper 61 is disposed at one end of the fixing ring 6 close to the first rotating shaft 2, a sliding groove 62 for slidably connecting the first protruding strip 51 and the second protruding strip 24 is disposed on the stopper 61, and when the cross bar 5 is connected to the first rotating shaft 2 through the positioning assembly, the sliding groove 62 is slidably connected to the second protruding strip 24. The first rotating shaft 2 is provided with a limiting part for limiting the sliding range of the fixing ring 6, and the limiting part is an annular convex edge 21. The other end of the fixing ring 6 is a limiting block 63, when the stopper 61 and the annular convex edge 21 form a butt joint, the first convex strip 51 and the limiting block 63 form a butt joint, the second convex strip 24 is separated from the sliding groove 62, the fixing ring 6 is rotated, the second convex strip 24 is dislocated with the sliding groove 62, and the second convex strip 24 and the inner wall of the stopper 61 form a butt joint, so that the cross rod 5 is fixed on the first rotating shaft 2.

As shown in fig. 6, when the fixing ring 6 abuts against the annular convex edge 21, the annular convex edge 21 is provided with two abutting components for abutting against the fixing ring 6, and the two abutting components are symmetrically arranged with respect to the axis of the first rotating shaft 2. The butt subassembly is including offering in the butt groove 7 that annular protruding edge 21 is close to second sand grip 24 one side and installing spring 71 in butt groove 7, and the one end fixedly connected with butt piece 72 of spring 71, the other end of spring 71 and the tank bottom bonding of butt groove 7, butt piece 72 and butt groove 7 sliding connection, the border formation butt of one side and the solid fixed ring 6 of butt piece 72. When solid fixed ring 6 and annular protruding edge 21 butt, make solid fixed ring 6 rotate the back, when spout 62 misplaced with second sand grip 24, butt piece 72 was supported by solid fixed ring 6 and is pressed and get into butt groove 7 in, butt piece 72 has certain reaction force to solid fixed ring 6, makes solid fixed ring 6 fix horizontal pole 5 and first pivot 2 better.

As shown in fig. 1, a vertical rod 8 is vertically and fixedly connected to the other end of the cross rod 5, the cross rod 5 and the upper end of the vertical rod 8 are integrally formed, a second rotating shaft 9 is vertically and fixedly connected to the lower end of the vertical rod 8, a bearing 10 is in interference fit with one end of the second rotating shaft 9, and an outer ring of the bearing 10 is in interference fit with an auxiliary wheel 11.

As shown in fig. 6, the push rod 3 is a telescopic rod, and includes a fixing rod 12 and a sliding rod 13 slidably connected to one end of the fixing rod 12, and the other end of the fixing rod 12 is fixedly connected to the distance measuring wheel 1. The fixing rod 12 is a hollow structure, one end of the sliding rod 13 is connected in the fixing rod 12 in a sliding mode, and the other end of the sliding rod 13 is connected with the handle 4. An adjusting component for adjusting the length of the push rod 3 is arranged between the fixed rod 12 and the sliding rod 13. The adjusting component comprises a plurality of first through holes 121 formed in the outer wall of the fixing rod 12, the first through holes 121 are distributed at intervals along the length direction of the fixing rod 12, the adjusting component further comprises a second through hole 131 formed in the outer wall of the sliding rod 13, when the sliding rod 13 slides, the second through hole 131 is communicated with the first through holes 121, the adjusting component further comprises a pin 14 connected with the second through hole 131 in an inserting mode, and the pin 14 penetrates through the first through hole 121 to be connected with the second through hole 131 in an inserting mode.

The use state of this implementation:

when needs use range wheel 1 to carry out the survey and drawing operation, peg graft in the locating hole 22 of first pivot 2 along constant head tank 23 with the locating lever 52 of horizontal pole 5, then slip solid fixed ring 6, make spout 62 aim at first sand grip 51 and second sand grip 24 sliding connection, know solid fixed ring 6 one end and annular protruding edge 21 butt back, second sand grip 24 breaks away from spout 62, rotates solid fixed ring 6 and makes spout 62 and second sand grip 24 dislocation. Thereby fixedly connecting the cross rod 5 and the first rotating shaft 2 together, and enabling the auxiliary mechanism to play a straight-going auxiliary role for the distance measuring wheel 1.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. The utility model provides a range unit, includes range finding wheel (1) and rotates first pivot (2) of being connected, its characterized in that with range finding wheel (1): the distance measuring wheel (1) is provided with a push rod (3) used for driving the distance measuring wheel (1) to move, one end of a first rotating shaft (2) extends out of the distance measuring wheel (1) to be provided with an auxiliary mechanism, the auxiliary mechanism comprises a cross rod (5), the cross sections of the cross rod (5) and the first rotating shaft (2) are both circular and have the same radius, the periphery of one end, close to the first rotating shaft (2), of the cross rod (5) is connected with a first convex strip (51) along the length direction, the periphery of one end, close to the cross rod (5), of the first rotating shaft (2) is connected with a second convex strip (24) along the length direction, a positioning assembly enabling the first convex strip (51) to be flush with the second convex strip (24) is arranged between the cross rod (5) and the first rotating shaft (2), the cross rod (5) is slidably connected with a fixing ring (6), one end, close to the first rotating shaft (2), of the fixing ring (6) is provided with a stop block, when horizontal pole (5) are connected through locating component with first pivot (2), solid fixed ring (6) and second sand grip (24) sliding connection, first pivot (2) are provided with the gliding locating part of solid fixed ring (6) of restriction, the other end of solid fixed ring (6) is provided with stopper (63), when solid fixed ring (6) and locating part form the butt, first sand grip (51) and stopper (63) form the butt, second sand grip (24) break away from spout (62), rotate solid fixed ring (6), spout (62) and second sand grip (24) dislocation, second sand grip (24) and dog (61) inner wall butt, auxiliary wheel (11) are installed to the other end of horizontal pole (5).

2. A ranging apparatus as claimed in claim 1, characterized in that: the positioning assembly comprises a positioning rod (52) fixedly connected with one end of a cross rod (5) and a positioning hole (22) formed in one end of a first rotating shaft (2), when the cross rod (5) is connected with the first rotating shaft (2), the positioning hole (22) is matched with the positioning rod (52), the outer wall of the positioning rod (52) is connected with a positioning strip (53), and a positioning groove (23) slidably connected with the positioning strip (53) is formed in the inner wall of the positioning hole (22).

3. A ranging apparatus as claimed in claim 1, characterized in that: the limiting piece is an annular convex edge (21), and the annular convex edge (21) is provided with an abutting component for abutting against the fixing ring (6).

4. A ranging apparatus as claimed in claim 3, characterized in that: the butt subassembly is including offering in butt groove (7) that annular protruding edge (21) is close to second sand grip (24) one side and installing spring (71) in butt groove (7), the one end fixedly connected with butt piece (72) of spring (71), the other end of spring (71) and the tank bottom fixed connection in butt groove (7), butt piece (72) and butt groove (7) sliding connection, the border formation butt of one side and solid fixed ring (6) of butt piece (72).

5. A ranging apparatus as claimed in claim 1, characterized in that: one end of the cross rod (5) is vertically and fixedly connected with a vertical rod (8), the auxiliary wheel (11) is in interference fit with a bearing (10), the inner ring of the bearing (10) is fixedly connected with a first rotating shaft (2), and the lower end of the vertical rod (8) is vertically and fixedly connected with the first rotating shaft (2).

6. A ranging apparatus as claimed in claim 5, characterized in that: the cross rod (5) and the vertical rod (8) are integrally formed.

7. A ranging apparatus as claimed in claim 1, characterized in that: push rod (3) are the telescopic link, including dead lever (12) and with dead lever (12) sliding connection's slide bar (13), dead lever (12) are hollow structure, the one end of slide bar (13) sliding connection in dead lever (12), the other end and range finding wheel (1) fixed connection of dead lever (12), be provided with the adjusting part of regulation push rod (3) length between dead lever (12) and slide bar (13).

8. A ranging apparatus as claimed in claim 7, characterized in that: the adjusting component comprises a plurality of first through holes (121) formed in the outer wall of the fixing rod (12), the first through holes (121) are evenly distributed in the length direction of the fixing rod (12), the adjusting component further comprises second through holes (131) formed in the outer wall of the sliding rod (13), when the sliding rod (13) slides, the second through holes (131) are communicated with the first through holes (121) respectively, the adjusting component further comprises pins (14) connected with the second through holes (131) in an inserting mode, and the pins (14) penetrate through the first through holes (121) and are connected with the second through holes (131) in an inserting mode.