阅读说明：本技术 一种防滑落对中杆 (Anti-slip centering rod ) 是由 曾东 周秀峰 赵爱节 王军伟 张有森 张�浩 唐镜涛 于 2020-04-25 设计创作，主要内容包括：本发明涉及一种防滑落对中杆,其包括内杆和外杆,所述内杆插在外杆内,所述外杆的上端设置有绕线装置,所述内杆的下端连接有拉绳,所述拉绳的一端固定在内杆上,并且所述拉绳缠绕在绕线装置上,所述绕线装置包括安装体、绕线轮、蜗轮和蜗杆,所述安装体固定在外杆的上端,绕线轮转动连接在安装体上,拉绳缠绕在绕线轮上,所述蜗轮同轴固定在绕线轮上,所述蜗杆连接在安装体上,蜗杆与蜗轮啮合。本发明具有防止内杆滑落的效果。(The invention relates to an anti-slip centering rod which comprises an inner rod and an outer rod, wherein the inner rod is inserted into the outer rod, the upper end of the outer rod is provided with a winding device, the lower end of the inner rod is connected with a pull rope, one end of the pull rope is fixed on the inner rod, the pull rope is wound on the winding device, the winding device comprises an installation body, a winding wheel, a worm wheel and a worm, the installation body is fixed at the upper end of the outer rod, the winding wheel is rotatably connected onto the installation body, the pull rope is wound on the winding wheel, the worm wheel is coaxially fixed on the winding wheel, the worm is connected onto the installation body, and the worm is meshed with. The invention has the effect of preventing the inner rod from sliding off.)

1. The utility model provides an antiskid centering rod that falls, includes interior pole (1) and outer pole (2), insert in outer pole (2) interior pole (1), its characterized in that: the upper end of outer pole (2) is provided with winding device (6), the lower extreme of interior pole (1) is connected with stay cord (4), the one end of stay cord (4) is fixed on interior pole (1), and stay cord (4) winding is on winding device (6), winding device (6) are including installation body (61), reel (62), worm wheel (64) and worm (65), the upper end at outer pole (2) is fixed in installation body (61), and reel (62) rotate to be connected on installation body (61), and stay cord (4) winding is on reel (62), worm wheel (64) coaxial fastening is on reel (62), worm (65) are connected on installation body (61), worm (65) and worm wheel (64) meshing.

2. The anti-slip centering rod of claim 1, wherein: and a balancing weight (63) is arranged at one end of the pull rope (4) far away from the inner rod (1).

3. An anti-slip centering rod as defined in claim 1 or 2, wherein: the worm (65) is connected with a movable frame (68), the two ends of the worm (65) are rotatably connected to the movable frame (68), a spring (67) is arranged on the movable frame (68), and the acting force direction of the spring (67) drives the worm (65) on the movable frame (68) to be close to the worm wheel (64).

4. The anti-slip centering rod of claim 3, wherein: be provided with guide bar (66) on adjustable shelf (68), guide bar (66) vertical setting, guide bar (66) sliding fit is on installation body (61), spring (67) cover is established on guide bar (66).

5. The anti-slip centering rod of claim 1, wherein: rope hole (3) have been seted up at the middle part of interior pole (1), and stay cord (4) are located rope hole (3), seted up groove of stepping down (53) on the lateral wall of interior pole (1), groove of stepping down (53) and rope hole (3) intercommunication, it is provided with gyro wheel (52) in groove of stepping down (53), and stay cord (4) stride gyro wheel (52) and are connected with reel (62).

6. The anti-slip centering rod of claim 1, wherein: interior pole (1) is including interior upper boom (11) and interior lower beam (12), outer pole (2) are including outer upper boom (21) and outer lower beam (22), and one side of outer upper boom (21) and outer lower beam (22) tip is rotated and is connected, and the opposite side is provided with the mounting, the connection can be dismantled to the tip of interior upper boom (11) and interior lower beam (12) to the junction of upper boom (21) and outer lower beam (22) outside the connecting piece position of interior upper boom (11) and interior lower beam (12).

7. The anti-slip centering rod of claim 6, wherein: step face (13) have all been seted up to the link of interior upper boom (11) and interior lower beam (12), and interior upper boom (11) and interior lower beam (12) splice each other through two step face (13) coincidences and form the concatenation section, be provided with bolt (14) of connecting interior upper boom (11) and interior lower beam (12) on the concatenation section.

8. An anti-slip centering rod as defined in claim 6 or 7, wherein: the fixing piece is a hasp (9).

Technical Field

The invention relates to the technical field of centering rods, in particular to an anti-slip centering rod.

Background

When the centering rod is used, the upper end of the centering rod is used for mounting the prism or the RTK, the lower end of the centering rod is centered with the mark point on the ground, so that the prism at the upper end can be measured through a total station, or the position of the RTK corresponds to the mark point on the ground.

The patent document with the authorization notice number of CN205785223U discloses a RTK centering rod for directly measuring the wall corner coordinate of a single-layer house, including the telescopic centering rod body, the body includes interior pole and outer pole, interior pole and the equal vertical setting of outer pole, the upper end of outer pole is pegged graft to the lower extreme of interior pole, and be provided with locking bolt between interior pole and outer pole, locking bolt and outer pole threaded connection, locking bolt passes outer pole butt on the lateral wall of interior pole, make locking bolt fix the position of interior pole, interior pole is when stretching out from outer pole, be provided with the scale on the interior pole, thereby the length that interior pole stretches out is fixed, when loosening locking bolt, can adjust the length that the interior pole stretches out.

However, in the structure, the inner rod is fixed by the locking bolt, the locking bolt is in threaded connection with the outer rod, the locking bolt is often disassembled and screwed, and if the locking bolt is not enough to the outer rod, the inner rod easily slides downwards.

Disclosure of Invention

The invention aims to provide an anti-slip centering rod which has the effect of preventing an inner rod from slipping.

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

the utility model provides an antiskid centering rod that falls, includes interior pole and outer pole, interior pole is inserted in the outer pole, the upper end of outer pole is provided with winding device, the lower extreme of interior pole is connected with the stay cord, the one end of stay cord is fixed on interior pole, and the stay cord winding is on winding device, winding device is including the installation body, reel, worm wheel and worm, the upper end at the outer pole is fixed to the installation body, and the reel rotates to be connected on the installation body, and the stay cord winding is on the reel, the worm wheel coaxial fixation is on the reel, the worm is connected on the installation body, and worm wheel mesh.

Through adopting above-mentioned technical scheme, during the use, in interior pole inserted the outer pole, the stay cord is connected to the lower extreme of pole in, twines the stay cord on the reel, and coaxial fixed is provided with the worm wheel on the reel, and the meshing has the worm on the worm wheel, can rotate the worm wheel through the worm, adjusts the one end length that the stay cord is located the outer pole to the length of pole extension outer pole in adjusting, will be because the auto-lock relation of worm wheel and worm, and then can prevent that the worm wheel from driving the worm and rotate, prevent interior pole automatic sliding.

The invention is further configured to: and a balancing weight is arranged at one end of the pull rope far away from the inner rod.

Through adopting above-mentioned technical scheme, the one end of keeping away from interior pole at the stay cord sets up the balancing weight, is pulling the one end of stay cord through the balancing weight, can reduce the length of winding the stay cord on the reel, makes things convenient for the regulation of the one end that the stay cord is located the outer pole.

The invention is further configured to: the worm is connected with a movable frame, the two ends of the worm are rotatably connected to the movable frame, a spring is arranged on the movable frame, and the acting force direction of the spring drives the worm on the movable frame to be close to the worm wheel.

Through adopting above-mentioned technical scheme, install the adjustable shelf on the worm, extrude the worm in the position of being connected with the worm wheel through the spring, when needs adjust the great scope of stay cord, can extrude the adjustable shelf, make worm and worm wheel separately to can adjust the length of stay cord fast, then loosen the adjustable shelf, rethread worm locks the worm wheel, and the accessible worm is finely tuned stay cord length simultaneously.

The invention is further configured to: the adjustable support is characterized in that a guide rod is arranged on the movable frame and is vertically arranged, the guide rod is in sliding fit with the installation body, and the spring sleeve is arranged on the guide rod.

Through adopting above-mentioned technical scheme, set up the guide bar on the adjustable shelf, the adjustable shelf passes through guide bar sliding fit on the installation body, makes the adjustable shelf connect more firmly on the installation body.

The invention is further configured to: the rope hole has been seted up at the middle part of interior pole, and the stay cord is located the rope hole, seted up the groove of stepping down on the lateral wall of interior pole, step down groove and rope hole intercommunication, it is provided with the gyro wheel to step down the inslot, and the stay cord strides the gyro wheel and is connected with the reel.

Through adopting above-mentioned technical scheme, the rope hole is seted up at the middle part of interior pole, and the gyro wheel is located the inslot of stepping down of seting up on the pole lateral wall in, can prevent on the one hand that interior pole from outer pole internal rotation, and on the other hand can make interior pole pass through the gyro wheel to the reel, reduces the friction to the stay cord.

The invention is further configured to: the interior pole is including interior upper boom and interior lower beam, outer pole is including outer upper boom and outer lower beam, and one side of outer upper boom and outer lower beam tip is rotated and is connected, and the opposite side is provided with the mounting, the connection can be dismantled to the tip of interior upper boom and interior lower beam to the junction of upper boom and outer lower beam outside the connecting piece position of interior upper boom and interior lower beam.

Through adopting above-mentioned technical scheme, can dismantle the connection between interior upper boom and the interior lower beam, rotate between outer upper boom and the outer lower beam and connect, will outer upper boom and outer lower beam rotate relatively, make interior upper boom and interior lower beam respectively, can be to interior pole and outer pole whole folding, conveniently carry.

The invention is further configured to: step faces are arranged at the connecting ends of the inner upper rod and the inner lower rod, the inner upper rod and the inner lower rod are mutually spliced through two step faces to form a splicing section, and bolts for connecting the inner upper rod and the inner lower rod are arranged on the splicing section.

Through adopting above-mentioned technical scheme, set up the step face between interior upper boom and the interior lower beam, through the step face with interior upper boom and interior lower beam splice each other and form the concatenation section to it is more firm when connecting interior upper boom and interior lower beam through the bolt.

The invention is further configured to: the fixing piece is a hasp.

Through adopting above-mentioned technical scheme, the dead lever is the hasp, and when connecting or folding outer upper boom and outer lower boom, dismantle and connect through the hasp relatively easily.

In summary, the invention includes at least one of the following beneficial technical effects:

1. the inner rod is inserted into the outer rod, the lower end of the inner rod is connected with the pull rope, the pull rope is wound on the reel, the worm wheel is coaxially and fixedly arranged on the reel, the worm wheel is meshed with the worm, the worm wheel can be rotated through the worm, the length of one end, located in the outer rod, of the pull rope is adjusted, so that the length of the inner rod extending out of the outer rod is adjusted, the worm wheel and the worm are in self-locking relation, the worm can be prevented from driving the worm to rotate, and the inner rod is prevented from automatically sliding down;

2. the movable frame is arranged on the worm, the worm is extruded at the position connected with the worm wheel through the spring, when the pull rope needs to be adjusted in a large range, the movable frame can be extruded to separate the worm from the worm wheel, so that the length of the pull rope can be quickly adjusted, then the movable frame is loosened, the worm wheel is locked through the worm, and meanwhile, the length of the pull rope can be finely adjusted through the worm;

3. can dismantle the connection between through interior upper boom and the interior lower beam, rotate between outer upper boom and the outer lower beam and connect, will outer upper boom and outer lower beam rotate relatively, make interior upper boom and interior lower beam respectively, can be to interior pole and outer pole wholly folding, conveniently carry.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention in full section;

FIG. 2 is a schematic view of the upper end structure of the outer rod;

FIG. 3 is an enlarged partial schematic view of portion A of FIG. 1;

FIG. 4 is a schematic view of the position structure of the winding device;

FIG. 5 is an enlarged partial view of portion B of FIG. 4;

FIG. 6 is a schematic view showing a connection structure of an outer upper rod and an outer lower rod;

fig. 7 is a schematic view of a connection structure of the inner upper rod and the inner lower rod.

In the figure, 1, an inner rod; 11. an inner upper rod; 12. an inner lower rod; 13. a step surface; 14. a bolt; 2. an outer rod; 21. an outer upper rod; 22. an outer lower rod; 23. a hinge; 24. a wrench hole; 3. a rope hole; 4. pulling a rope; 51. a support; 52. a roller; 53. a yielding groove; 6. a winding device; 61. an installation body; 611. a guide hole; 62. a reel; 63. a balancing weight; 64. a worm gear; 65. a worm; 66. a guide bar; 67. a spring; 68. a movable frame; 681. pressing the cap; 69. a knob; 7. a through hole; 71. an anti-wear sleeve; 8. vertical lines; 9. a hasp is provided.

Detailed Description

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

Referring to fig. 1, the anti-slipping centering rod disclosed by the invention comprises an inner rod 1 and an outer rod 2, wherein the lower end of the inner rod 1 is inserted into the outer rod 2 from the upper end of the outer rod 2, when the anti-slipping centering rod is used, the upper end of the inner rod 1 is connected with a prism or an RTK (real-time kinematic) and then the inner rod 1 extends upwards, scales are marked on the side wall of the inner rod 1, the length of the inner rod 1 extending out of the outer rod 2 can be observed through the scales, and after the length of the inner rod 1 extending out of the outer rod 2 reaches a required value, the height of the inner rod 1 is fixed, so that the accuracy of position measurement.

Referring to fig. 1 and 2, a rope hole 3 is formed in the middle of an inner rod 1, the rope hole 3 is vertically arranged, the rope hole 3 is located in the center of the inner rod 1, a pulling rope 4 penetrates through the rope hole 3, one end of the pulling rope 4 is fixed to the bottom of the rope hole 3, a support 51 is fixedly arranged at the upper end of the outer rod 2, a roller 52 is arranged on the support 51, the roller 52 is rotatably connected to the support 51, the roller 52 is a V-shaped wheel, a yielding groove 53 is formed in the side wall of the inner rod 1, the yielding groove 53 is communicated with the rope hole 3, the yielding groove 53 is formed in the upper end of the inner rod 1 to the lower end of the inner rod 1, the support 51 is extended into the yielding groove 53, the roller 52 installed on the support 51 is located at the position of the rope hole 3, the middle of the pulling rope 4 is located in the roller 52, and the part of.

Referring to fig. 3 and 4, a winding device 6 is arranged at the upper end of the outer rod 2, a horizontal through hole 7 is formed at the upper end of the outer rod 2, the through hole 7 is located between the winding device 6 and the roller 52, the pull rope 4 extends out of the through hole 7, the diameter of the through hole 7 is larger than that of the pull rope 4, an anti-abrasion sleeve 71 is arranged in the through hole 7, the anti-abrasion sleeve 71 is made of rubber materials, and the winding device 6 is used for connecting the part of the pull rope 4 which penetrates out of the through hole 7. Winding device 6 includes installation body 61 and reel 62, reel 62 is the I-shaped wheel, installation body 61 is fixed in the upper end of outer pole 2, rotate reel 62 and connect on installation body 61, and reel 62 is with high with the position of gyro wheel 52, when stretching out stay cord 4 from through-hole 7, twine on reel 62, and the winding stay cord 4 on reel 62 is the round, two rings or many rings, after winding stay cord 4 on reel 62, the end fixing of stay cord 4 has balancing weight 63, when using, balancing weight 63 is under the effect of gravity, twine stay cord 4 on reel 62, and can prevent that stay cord 4 from skidding on reel 62. Be provided with vertical line 8 on the lateral wall of outer pole 2, vertical line 8 is located one side that sets up balancing weight 63 on outer pole 2, and when the staff used, balancing weight 63 was vertical, can judge the vertical condition of outer pole 2 through the parallel relation with vertical line 8.

Referring to fig. 4 and 5, a worm wheel 64 is arranged at the end of the reel 62, the worm wheel 64 is coaxially fixed on the reel 62, the worm wheel 64 is connected with a worm 65, the worm 65 is meshed with the worm wheel 64, a movable frame 68 is arranged on the worm 65, two guide rods 66 are arranged at the lower part of the movable frame 68, the guide rods 66 are vertically arranged, springs 67 are sleeved on the guide rods 66, two guide holes 611 matched with the guide rods 66 are arranged on the mounting body 61, the guide rods 66 are in sliding fit in the guide holes 611, the worm 65 is horizontally arranged, two ends of the worm 65 are rotatably connected to the movable frame 68, when the worm 65 rotates, the worm wheel 64 can be driven to rotate, and the worm wheel 64 cannot drive the worm 65 to rotate. The upper portion of the movable frame 68 is provided with a pressing cap 681, the pressing cap 681 extends out of the mounting body 61, the pressing cap 681 is fixed on the movable frame 68, when a worker presses the pressing cap 681 downwards, the movable frame 68 moves downwards to separate the worm 65 from the worm wheel 64, at this time, when the counterweight block 63 moves downwards by pulling the pull rope 4, the inner rod 1 can be lifted upwards, and when the counterweight block 63 moves upwards, the inner rod 1 can be lowered downwards. A knob 69 is coaxially and fixedly arranged on the worm 65, when the pressing cap 681 is loosened, the worm 65 presses the worm wheel 64 under the action of the spring 67, the knob 69 is rotated to drive the worm wheel 64 to rotate, the pull rope 4 can be pulled by the reel 62, and the length of the inner rod 1 in the outer rod 2 can be finely adjusted.

Referring to fig. 6 and 7, the outer diameter of the inner rod 1 is smaller than the inner diameter of the outer rod 2, the outer rod 2 is divided into an outer upper rod 21 and an outer lower rod 22 from the middle of the outer rod 2, the inner rod 1 is divided into an inner upper rod 11 and an inner lower rod 12 in the middle of the inner rod 1, the ends of the inner upper rod 11 and the inner lower rod 12 are detachably connected, and the connection of the inner upper rod 11 and the inner lower rod 12 is located at the connection of the outer upper rod 21 and the outer lower rod 22. The hinge 23 is arranged at the joint of the outer upper rod 21 and the outer lower rod 22, the hinge 23 is positioned on the side wall of the outer rod 2, the rotating axis of the hinge 23 is perpendicular to the length direction of the outer rod 2, and after the inner upper rod 11 and the inner lower rod 12 are disassembled, the hinge 23 can rotate, so that the outer rod 2 and the same rod can be folded at the same time, the overall length is reduced, and the carrying is convenient.

Referring to fig. 6 and 7, a step surface 13 is formed at the joint of the inner upper rod 11 and the inner lower rod 12, when the inner upper rod 11 and the inner lower rod 12 are connected, the step surfaces 13 on the inner upper rod 11 and the inner lower rod 12 are overlapped and spliced to form a spliced section, a bolt 14 is arranged on the inner rod 1, and the bolt 14 penetrates through the inner upper rod 11 and is in threaded connection with the inner lower rod 12, so that the inner upper rod 11 and the inner lower rod 12 are relatively fixedly connected. Offer wrench hole 24 on the lateral wall of outer pole 2, when inserting outer pole 2's bottom with interior pole 1, wrench hole 24 is corresponding with the bolt 14 on interior pole 1, conveniently insert the hexagonal spanner in wrench hole 24, take off bolt 14 from interior pole 1 through the hexagonal spanner, it separately to make interior upper boom 11 and interior lower boom 12, wrench hole 24 is located outer pole 2 and goes up the relative one side of installation hinge 23, and be provided with hasp 9 on outer pole 2, hasp 9 is located and sets up one side of wrench hole 24 on outer pole 2, conveniently will go up outer pole 21 and outer lower boom 22 high-speed joint.

The embodiments of the present invention are preferred embodiments of the present invention, and the scope of the present invention is not limited by these embodiments, so: all equivalent changes made according to the structure, shape and principle of the invention are covered by the protection scope of the invention.