CN215599366U

CN215599366U - Handheld range finder for engineering surveying and mapping

Info

Publication number: CN215599366U
Application number: CN202122243638.6U
Authority: CN
Inventors: 蓝俊祥; 高俊伟
Original assignee: Fujian Blueprint Survey Co ltd
Current assignee: Fujian Blueprint Survey Co ltd
Priority date: 2021-09-16
Filing date: 2021-09-16
Publication date: 2022-01-21
Anticipated expiration: 2031-09-16

Abstract

The utility model discloses a handheld range finder for engineering surveying and mapping, which relates to the technical field of handheld range finders. The utility model has good buffer performance and can achieve the purpose of protecting equipment.

Description

Handheld range finder for engineering surveying and mapping

Technical Field

The utility model relates to the technical field of handheld distance meters, in particular to a handheld distance meter for engineering surveying and mapping.

Background

The handheld distance measuring instrument is used for measuring distance according to the principles of electromagnetic wave, optics, acoustics and the like; the principle is as follows: when the hand-held distance measuring instrument works, a thin laser beam is emitted to a target, the photoelectric element receives the laser beam reflected by the target, the timer measures the time from emitting to receiving of the laser beam, and the distance from an observer to the target is calculated.

Among the prior art, referring to fig. 4, hand-held type distancer generally includes instrument body (1), instrument body (1) outer wall fixedly connected with protective housing (2), and instrument body (1) bottom inner wall fixedly connected with electronic component (6) through protective housing (2) protection instrument body (1), and then electronic component (6) in the protection instrument body (1) to reach the purpose to equipment protection.

However, the protective effect of the protective case is limited, and when the range finder falls to the ground, internal devices are easily damaged.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects in the prior art, the utility model aims to provide a handheld range finder for engineering surveying and mapping, which has the advantages that: has good buffer performance and can achieve the purpose of protecting equipment.

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides a hand-held type distancer is used in engineering survey and drawing, includes instrument body and protective housing, instrument body inner wall fixedly connected with electronic component, instrument body bottom outer wall intermediate position rotates through the bearing and is connected with the threaded rod, the movable block has been cup jointed to the threaded rod, the spacing groove that is cruciform structure is seted up to protective housing bottom inner wall, the dashpot has all been seted up to the relative one side inner wall of spacing groove, the dashpot is close to the protective housing and puts equal sliding connection in position all around and has the buffer block, the buffer block top articulates there is the buffer beam, four the buffer beam is kept away from the one end of buffer block and is articulated all around with the movable block respectively, four fixed connection buffer spring between the top of buffer beam and the instrument body bottom outer wall.

By adopting the technical scheme, when the equipment falls, the instrument body can move up and down, the displacement of the instrument body can drive the threaded rod to move, so that the buffer rod slides in the limit groove, and meanwhile, the buffer spring is compressed, so that the buffer block slides in the buffer groove, and the buffer spring has elasticity, so that the buffer effect on the equipment is achieved; after equipment is steady, buffer spring can make the interval grow between instrument body and the protective housing, and the buffer beam is owing to the limiting displacement who receives the spacing groove simultaneously, therefore can make the threaded rod take place to rotate, and then can let the steady rebound of movable block, has strengthened the effect to equipment buffering.

The utility model is further configured to: the bottom of the threaded rod is fixedly connected with a stop block.

Through adopting above-mentioned technical scheme, when equipment dropped, the movable block can take place the displacement, and the setting of dog can carry on spacingly to the displacement of movable block, avoids the movable block to drop.

The utility model is further configured to: the instrument body both sides outer wall intermediate position has all been seted up and has been rotated the groove, it is connected with the gear to rotate through the bearing between the groove both ends inner wall to rotate, the shifting chute that is zigzag structure is all seted up to protective housing both sides inner wall intermediate position, the inner wall and the gear mesh in shifting chute mutually.

Through adopting above-mentioned technical scheme, when the instrument body takes place displacement from top to bottom, rotate the gear of inslot and can contact and take place to rotate with the shifting chute inner wall to this resistance that can multiplicable instrument body displacement effectively avoids instrument body and protective housing bottom inner wall to bump.

The utility model is further configured to: the tooth's socket inner wall fixedly connected with blotter of gear, the corresponding cushion of removal inslot wall fixedly connected with and blotter, and cushion and blotter are the rubber material.

Through adopting above-mentioned technical scheme, cushion and cushion's setting, the displacement distance of gear is greatly reduced to the frictional force between multiplicable gear and the shifting chute to reduce the whereabouts distance of instrument body, further avoided instrument body and protective housing bottom inner wall to bump.

The utility model is further configured to: the utility model discloses a buffer pad, including the buffer pad, the buffer pad is kept away from the fixed lug that is provided with evenly distributed in gear teeth groove one side, the caulking groove with lug one-to-one and looks adaptation is seted up to the one side that the shifting chute was kept away from to the cushion.

Through adopting above-mentioned technical scheme, when the gear takes place to rotate, the lug can block into the caulking groove in, the area of contact of multiplicable cushion and cushion to the resistance of multiplicable instrument body displacement has further avoided instrument body and protective housing bottom inner wall to bump.

The utility model is further configured to: the edge of the periphery of the protective shell is in arc transition.

Through adopting above-mentioned technical scheme, be the design of circular arc transition, the motion range after can reducing the protective housing and fall effectively avoids equipment to appear damaging.

The utility model is further configured to: and material reducing strip-shaped holes are formed in the periphery of the top of the protective shell in a penetrating manner.

Through adopting above-mentioned technical scheme, the intensity of protective housing can be reduced in the setting in material reduction bar hole to increase the deformability of protective housing, when the protective housing received the collision, can take place deformation through the protective housing and offset the partial stress of transmission to the instrument body, effectively avoid equipment to appear damaging.

The utility model is further configured to: a plurality of uniformly distributed deformation holes are formed in the inner wall of one side, far away from the instrument body, of the material reduction strip-shaped hole.

Through adopting above-mentioned technical scheme, the intensity of protective housing can further be reduced in the setting in deformation hole, improves the deformability of protective housing for the protective housing is better to the buffering effect that equipment played.

In summary, the utility model has the following advantages:

1. when the equipment falls, the instrument body can move up and down, the displacement of the instrument body can drive the threaded rod to move, so that the buffer rod slides in the limit groove, and meanwhile, the buffer spring is compressed, so that the buffer block slides in the buffer groove; after the equipment is stable, the buffer spring can increase the distance between the instrument body and the protective shell, and meanwhile, the buffer rod can enable the threaded rod to rotate due to the limiting effect of the limiting groove, so that the moving block can stably move upwards, and the effect of buffering the equipment is enhanced;

2. when the instrument body moves up and down, the gear in the rotating groove can be contacted with the inner wall of the moving groove and rotate, so that the resistance of the displacement of the instrument body can be increased, and the instrument body is effectively prevented from colliding with the inner wall of the bottom of the protective shell;

3. when the gear rotates, the lug can be clamped into the caulking groove, so that the resistance of the displacement of the instrument body can be increased, and the instrument body is prevented from colliding with the inner wall of the bottom of the protective shell.

Drawings

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

FIG. 2 is a schematic view of a partially cut-away structure of the prominent soft cushion and the cushioning pad of the present embodiment;

FIG. 3 is a schematic side sectional view of the highlighted reduced strip holes and the deformed holes of the present embodiment;

fig. 4 is a schematic diagram of a prior art hand-held rangefinder.

Description of reference numerals: 1. an instrument body; 12. a rotating groove; 21. a limiting groove; 241. a deformation hole; 2. a protective shell; 23. a soft cushion; 221. caulking grooves; 122. a cushion pad; 121. a gear; 123. a bump; 22. a moving groove; 211. a buffer tank; 212. a buffer block; 213. a buffer rod; 214. a buffer spring; 111. a moving block; 112. a stopper; 11. a threaded rod; 24. reducing the material strip-shaped holes; 6. an electronic component.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

The utility model provides a hand-held type distancer is used in engineering survey and drawing, as shown in fig. 1-2, including instrument body 1 and

protective housing

2, 1 inner wall fixedly connected with electronic component 6 of instrument body, 1 bottom outer wall intermediate position of instrument body is rotated through the bearing and is connected with threaded rod 11, threaded rod 11 has cup jointed

movable block

111, 2 bottom inner walls of protective housing have seted up spacing groove 21 that is cruciform structure, buffer slot 211 has all been seted up to spacing groove 21's relative one side inner wall, buffer slot 211 is close to protective housing 2 equal sliding connection in position all around has buffer block 212, buffer block 212 top articulates there is buffer beam 213, four buffer beam 213 keep away from the one end of buffer block 212 and articulate all around with movable block 111 respectively, fixed connection buffer spring 214 between the top of four buffer beam 213 and the 1 bottom outer wall of instrument body.

In this embodiment, a stopper 112 is fixedly connected to the bottom of the threaded rod 11. When the device falls, the moving block 111 can displace, and the displacement of the moving block 111 can be limited through the stop block 112, so that the moving block 111 is prevented from falling off.

In one embodiment, as shown in fig. 1 and 3, the instrument body 1 is provided with a rotation groove 12 at a middle position of outer walls at two sides, the inner walls at two ends of the rotation groove 12 are rotatably connected with a gear 121 through a bearing, the protective shell 2 is provided with a moving groove 22 at a middle position of inner walls at two sides, the inner walls of the moving groove 22 are engaged with the gear 121. When the instrument body 1 moves up and down, the gear 121 in the rotating groove 12 contacts and rotates on the inner wall of the moving groove 22, so that the resistance to the movement of the instrument body 1 can be increased, and the instrument body 1 is effectively prevented from colliding with the inner wall at the bottom of the protective shell 2.

In the embodiment, the inner wall of the tooth groove of the gear 121 is fixedly connected with the cushion 122, the inner wall of the moving groove 22 is fixedly connected with the cushion 23 corresponding to the cushion 122, and the cushion 23 and the cushion 122 are made of rubber. The friction force between the gear 121 and the moving groove 22 can be increased through the soft cushion 23 and the buffer cushion 122, and the displacement distance of the gear 121 is greatly reduced, so that the falling distance of the instrument body 1 is reduced, and the collision between the instrument body 1 and the inner wall of the bottom of the protective shell 2 is further avoided.

Furthermore, in this embodiment, the buffer pad 122 is fixedly provided with evenly distributed protrusions 123 on the side away from the tooth grooves of the gear 121, and the cushion 23 is provided with caulking grooves 221 corresponding to and matching with the protrusions 123 on the side away from the moving groove 22. When the gear 121 rotates, the protrusion 123 is engaged into the groove 221, so that the resistance to displacement of the instrument body 1 can be increased, and collision between the instrument body 1 and the inner wall of the bottom of the protective casing 2 can be further avoided.

In one embodiment, as shown in fig. 1-3, the protective shell 2 has a rounded transition around its perimeter. Through being circular-arc protective housing 2 can reduce the motion range after protective housing 2 falls, effectively avoid the equipment to appear damaging.

It should be noted that, in this embodiment, the periphery of the top of the protection shell 2 is provided with the material reducing strip-shaped holes 24 in a penetrating manner. Can make the protective housing 2 become bilayer structure through subtracting material bar hole 24, can reduce the intensity of protective housing 2 to increase the deformability of protective housing 2, when protective housing 2 received the collision, can offset the partial stress of transmitting to instrument body 1 through protective housing 2 emergence deformation, effectively avoid equipment to appear damaging.

Further, in this embodiment, a plurality of deformation holes 241 are uniformly distributed on the inner wall of the material-reducing strip-shaped hole 24 away from the instrument body 1. The strength of the protective shell 2 can be further reduced through the deformation hole 241, the deformation performance of the protective shell 2 is improved, and the buffering effect of the protective shell 2 on equipment is better.

The working process and the beneficial effects of the utility model are as follows: when the equipment falls, the instrument body 1 can move up and down, the displacement of the instrument body 1 can drive the threaded rod 11 to move, so that the buffer rod 213 slides in the limiting groove 21, meanwhile, the buffer spring 214 is compressed, so that the buffer block 212 slides in the buffer groove 211, and the buffer spring 214 has elasticity, so that the buffer effect on the equipment is achieved; after equipment is steady, buffer spring 214 can make the interval grow between instrument body 1 and the protective housing 2, and buffer beam 213 is owing to receive the limiting displacement of spacing groove 21 simultaneously, therefore can make threaded rod 11 take place to rotate, and then can let the steady rebound of movable block 111, has strengthened the effect to equipment buffering.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents, improvements and the like made within the design concept of the present invention should be included in the scope of the present invention.

Claims

1. The utility model provides an engineering is handheld distancer for survey and drawing, includes instrument body (1) and protective housing (2), instrument body (1) inner wall fixedly connected with electronic component (6), its characterized in that: instrument body (1) bottom outer wall intermediate position rotates through the bearing and is connected with threaded rod (11), threaded rod (11) have cup jointed movable block (111), protective housing (2) bottom inner wall is seted up and is limit slot (21) of cruciform structure, buffer slot (211) have all been seted up to the relative one side inner wall of limit slot (21), buffer slot (211) are close to protective housing (2) and all around the equal sliding connection in position have buffer block (212), buffer block (212) top articulates there are buffer beam (213), four buffer beam (213) keep away from the one end of buffer block (212) and articulate all around with movable block (111) respectively, four fixed connection buffer spring (214) between the top of buffer beam (213) and instrument body (1) bottom outer wall.

2. The handheld range finder for engineering surveying and mapping as claimed in claim 1, wherein: the bottom of the threaded rod (11) is fixedly connected with a stop block (112).

3. The handheld range finder for engineering surveying and mapping as claimed in claim 1, wherein: rotation groove (12) have all been seted up to instrument body (1) both sides outer wall intermediate position, it is connected with gear (121) to rotate through the bearing between rotation groove (12) both ends inner wall, shifting chute (22) that are the zigzag structure are all seted up to protective housing (2) both sides inner wall intermediate position, the inner wall and the gear (121) of shifting chute (22) mesh mutually.

4. The handheld range finder for engineering surveying and mapping according to claim 3, wherein: tooth's socket inner wall fixedly connected with blotter (122) of gear (121), shifting chute (22) inner wall fixedly connected with and corresponding cushion (23) of blotter (122), and cushion (23) and blotter (122) are the rubber material.

5. The handheld range finder for engineering surveying and mapping according to claim 4, wherein: the utility model discloses a gear wheel, including blotter (122), cushion (23) and removal groove (22), the fixed lug (123) that are provided with evenly distributed of tooth's socket one side that keep away from gear (121) of blotter (122), the caulking groove (221) that correspond one-to-one and looks adaptation with lug (123) is seted up to the one side that the removal groove (22) was kept away from in cushion (23).

6. The handheld range finder for engineering surveying and mapping as claimed in claim 1, wherein: the peripheral edge of the protective shell (2) is in arc transition.

7. The handheld range finder for engineering surveying and mapping as claimed in claim 1, wherein: and material reducing strip-shaped holes (24) are formed in the periphery of the top of the protective shell (2) in a penetrating mode.

8. The handheld range finder for engineering surveying and mapping according to claim 7, wherein: a plurality of uniformly distributed deformation holes (241) are formed in the inner wall of one surface, far away from the instrument body (1), of the material reduction strip-shaped hole (24).