CN214535447U

CN214535447U - Tripod locking device for surveying and mapping

Info

Publication number: CN214535447U
Application number: CN202120548991.2U
Authority: CN
Inventors: 钟平生; 安栋; 郑莹
Original assignee: Shandong Dongxin Geotechnical Engineering Co ltd
Current assignee: Shandong Dongxin Geotechnical Engineering Co ltd
Priority date: 2021-03-17
Filing date: 2021-03-17
Publication date: 2021-10-29
Anticipated expiration: 2031-03-17

Abstract

The utility model discloses a tripod locking device for survey and drawing, including the supporting seat, the bottom annular array of supporting seat has three connecting block, and it has the landing leg to articulate through the round pin axle on the connecting block, is provided with on the landing leg to carry out the fixed unit fixed to the round pin axle. The utility model discloses a set up ring and baffle, realized the roll-off to the round pin axle, also be convenient for simultaneously to the extraction of round pin axle, through setting up the spring, realized the stable contact of ring and baffle, through setting up the recess, the finger of being convenient for deepens, realizes then the pulling to the ring, through setting up round pin post and groove, has realized the restriction to the ring, prevents the ring roll-off, the utility model provides a present tripod on all adopt the riveting articulated between landing leg and the supporting seat, this structure has disposable characteristics, can not dismantle, is not convenient for the problem of later stage maintenance.

Description

Tripod locking device for surveying and mapping

Technical Field

The utility model relates to a mechanism for the tripod, concretely relates to tripod locking device is used in survey and drawing belongs to tripod equipment technical field.

Background

Tripods are supporting devices for supporting objects, which are commonly used in surveying and mapping for supporting instruments for surveying and mapping.

But all adopt the riveting articulated between landing leg and the supporting seat on the current tripod, this structure has disposable characteristics, can not dismantle, the maintenance in later stage of being not convenient for.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to overcome prior art's the aforesaid not enough, provide a tripod locking device for survey and drawing.

In order to solve the above problem, the utility model adopts the following technical scheme: tripod locking device is used in survey and drawing, including supporting seat, the bottom annular array of supporting seat has three connecting block, it has the landing leg to articulate through the round pin axle on the connecting block, be provided with the fixed unit who goes on fixing to the round pin axle on the landing leg, fixed unit is including the ring that can fix a position round pin axle, be provided with an opening on this ring, the one end of round pin axle is located this opening, sell epaxial counter bore that has seted up and hold the ring both ends, these two counter bores are at the axis direction dislocation set of round pin axle, support piece is installed to the position that is close to the round pin axle on the landing leg, support piece sets up to two, and install the baffle that can block the edge of ring on these two support piece, this baffle is the annular, and this baffle and the coaxial setting of round pin axle, be provided with the spring between ring and the landing leg, this spring suit is selling epaxial at the round pin.

The following is the utility model discloses to the further optimization of above-mentioned scheme: the supporting leg is provided with an annular groove at a position corresponding to the circular ring, and the longitudinal section of the groove is arc-shaped.

Further optimization: and a rubber pad is arranged at one end of the pin shaft.

Further optimization: and the pin shaft is provided with a limiting unit for limiting the circular ring.

Further optimization: the limiting unit comprises two grooves which are respectively formed in two end parts inserted into the two counter bores on the circular ring, and the two grooves are annular.

Further optimization: and pin columns are respectively arranged on one sides of the two grooves in a penetrating manner, and pin holes for accommodating the pin columns are formed in the pin shafts.

Further optimization: the upper end of the pin hole penetrates through the outer circumferential surface of the pin shaft, the other end of the pin hole penetrates through the corresponding counter bore, and a hole for accommodating the lower end of the pin column is formed in the inner wall of the counter bore.

Further optimization: the upper ends of the two pin columns extend to the outside of the pin shaft for a certain distance and are connected through a limiting bolt.

Further optimization: the longitudinal section of the limiting bolt is arc-shaped.

During the use, insert the round pin axle on landing leg and the connecting block to press down the round pin axle, simultaneously because the edge and the baffle contact of ring, promote the ring and rotate around the axis of counter bore, so the ring can diminish in the length of baffle radial line direction, until the ring slips into the baffle, and along with the deformation power recovery normal position of ring, loosen the pressing to the round pin axle, the spring promotes ring and baffle top tightly, can realize locking.

The utility model discloses a set up ring and baffle, realized the roll-off to the round pin axle, also be convenient for simultaneously to the extraction of round pin axle, through setting up the spring, realized the stable contact of ring and baffle, through setting up the recess, the finger of being convenient for deepens, realizes then the pulling to the ring, through setting up round pin post and groove, has realized the restriction to the ring, prevents the ring roll-off, the utility model provides a present tripod on all adopt the riveting articulated between landing leg and the supporting seat, this structure has disposable characteristics, can not dismantle, is not convenient for the problem of later stage maintenance.

The present invention will be further explained with reference to the drawings and examples.

Drawings

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

FIG. 2 is an enlarged schematic view at A in FIG. 1;

fig. 3 is a schematic structural diagram of a limiting unit in an embodiment of the present invention;

fig. 4 is an enlarged schematic view of fig. 3 at B.

In the figure: 1-a support base; 2, connecting blocks; 3-a support leg; 4-a pin shaft; 5-a baffle plate; 6-a support member; 8-rubber pad; 9-a circular ring; 10-a limit bolt; 11-a groove; 12-a spring; 13-counter bore; 14-a pin; 15-pin holes; 16-groove.

Detailed Description

In the embodiment, as shown in fig. 1-4, the tripod locking device for surveying and mapping comprises a supporting base 1, three connecting blocks 2 are annularly arrayed at the bottom of the supporting base 1, supporting legs 3 are hinged to the connecting blocks 2 through pin shafts 4, and fixing units for fixing the pin shafts 4 are arranged on the supporting legs 3.

The fixing unit comprises a circular ring 9 capable of positioning the pin shaft 4, an opening is formed in the circular ring 9, and one end of the pin shaft 4 is located in the opening.

The two sides of the pin shaft 4 are provided with counter bores 13 near one end for accommodating two ends of the circular ring 9, and the two counter bores 13 are arranged in a staggered mode in the axis direction of the pin shaft 4, so that the circular ring 9 can be automatically reset, namely the circular ring 9 is automatically reset to a position perpendicular to the axis of the pin shaft 4, and the pin shaft 4 is prevented from moving in the axis direction.

Support piece 6 is fixedly installed at the position, close to pin shaft 4, on landing leg 3, support piece 6 sets up to two, and fixedly installed on these two support piece 6 can be to the edge of ring 9 baffle 5 that stops, and this baffle 5 is the annular, and this baffle 5 and the coaxial setting of pin shaft 4.

A spring 12 is arranged between the circular ring 9 and the supporting leg 3, and the spring 12 is sleeved on the pin shaft 4, so that the acting force between the circular ring 9 and the baffle 5 can be maintained.

An annular groove 11 is formed in the position, corresponding to the ring 9, of the supporting leg 3, the longitudinal section of the groove 11 is arc-shaped, and therefore a user's fingers can stretch into the groove and pull out the ring 9 conveniently.

A rubber pad 8 is fixedly arranged at one end of the pin shaft 4, and when the ring 9 is pulled out by fingers, the fingers are required to bend and extrude the pin shaft 4 and compress the spring 12, so that the hand can be prevented from being damaged.

And the pin shaft 4 is provided with a limiting unit for limiting the ring 9, so that the ring 9 can be prevented from sliding out of the pin shaft 4.

The limiting unit comprises two grooves 16 which are respectively arranged at two ends of the circular ring 9 inserted into the two counter bores 13, and the two grooves 16 are both annular, so that the depth of the grooves 16 can be ensured no matter how the circular ring 9 rotates.

And one side in the two grooves 16 is respectively provided with a pin 14 in a penetrating way, and the pin shaft 4 is provided with a pin hole 15 for accommodating the pin 14.

The upper end of the pin hole 15 penetrates the outer circumferential surface of the pin shaft 4, the other end penetrates the corresponding counter bore 13, and a hole for accommodating the lower end of the pin column 14 is formed in the inner wall of the counter bore 13, so that the end of the ring 9 is prevented from sliding out of the pin shaft 4.

The upper ends of the two pins 14 extend to the outside of the pin shaft 4 for a certain distance and are connected through a limiting bolt 10, so that the two pins 14 can be plugged and pulled out simultaneously.

The longitudinal section of the limiting bolt 10 is arc-shaped, and the circle center of the limiting bolt 10 is located on the axis of the pin shaft 4.

The elasticity of the spring 12 is much less than that of the ring 9.

During the use, insert on landing leg 3 and connecting block 2 with round pin axle 4 to press down round pin axle 4, simultaneously because the edge of ring 9 and baffle 5 contact, promote ring 9 and rotate around the axis of counter bore 13, so ring 9 can diminish in the length of 5 footpath line directions of baffle, until ring 9 slips into in baffle 5, and along with the deformation power recovery normal position of ring 9, loosen the pressing to round pin axle 4, spring 12 promotes ring 9 and baffle 5 and pushes up tightly, can realize locking.

Claims

1. Tripod locking device is used in survey and drawing, its characterized in that: comprises a supporting seat (1), the bottom of the supporting seat (1) is annularly arrayed with three connecting blocks (2), the connecting blocks (2) are hinged with supporting legs (3) through pin shafts (4), the supporting legs (3) are provided with fixing units for fixing the pin shafts (4), the fixing units comprise circular rings (9) capable of positioning the pin shafts (4), the circular rings (9) are provided with openings, one ends of the pin shafts (4) are positioned in the openings, the pin shafts (4) are provided with counter bores (13) for accommodating two ends of the circular rings (9), the two counter bores (13) are arranged in a staggered mode in the axis direction of the pin shafts (4), supporting pieces (6) are installed on the supporting legs (3) close to the pin shafts (4), the supporting pieces (6) are arranged in two modes, baffle plates (5) capable of blocking the edges of the circular rings (9) are installed on the two supporting pieces (6), the baffle plates (5) are annular, and the baffle (5) and the pin shaft (4) are coaxially arranged, a spring (12) is arranged between the circular ring (9) and the supporting leg (3), and the spring (12) is sleeved on the pin shaft (4).

2. A tripod latching apparatus for surveying and mapping according to claim 1, wherein: an annular groove (11) is formed in the position, corresponding to the circular ring (9), of the supporting leg (3), and the longitudinal section of the groove (11) is arc-shaped.

3. A tripod latching apparatus for surveying and mapping according to claim 2, wherein: and a rubber pad (8) is arranged at one end of the pin shaft (4).

4. Tripod latching device for surveying and mapping according to claim 3, characterized in that: and a limiting unit for limiting the circular ring (9) is arranged on the pin shaft (4).

5. A tripod latching apparatus for surveying and mapping according to claim 4, wherein: the limiting unit comprises two grooves (16) which are respectively formed in two end parts of the circular ring (9) inserted into the two counter bores (13), and the two grooves (16) are both annular.

6. A tripod latching apparatus for surveying and mapping according to claim 5, wherein: and one side in the two grooves (16) is respectively provided with a pin column (14) in a penetrating way, and the pin shaft (4) is provided with a pin hole (15) for accommodating the pin column (14).

7. A tripod latching apparatus for surveying and mapping according to claim 6, wherein: the upper end of the pin hole (15) penetrates through the outer circumferential surface of the pin shaft (4), the other end of the pin hole penetrates through the corresponding counter bore (13), and a hole for accommodating the lower end of the pin column (14) is formed in the inner wall of the counter bore (13).

8. A tripod latching apparatus for surveying and mapping according to claim 7, wherein: the upper ends of the two pin columns (14) extend to the outside of the pin shaft (4) for a certain distance and are connected through a limiting bolt (10).

9. A tripod latching apparatus for surveying and mapping according to claim 8, wherein: the longitudinal section of the limiting bolt (10) is arc-shaped.