CN112393716B

CN112393716B - Fixing support of total station forward-looking prism

Info

Publication number: CN112393716B
Application number: CN202011362314.8A
Authority: CN
Inventors: 郭希印; 赵静; 刘东路; 段超; 田瑞奇
Original assignee: Beijing Tongchuangtiancheng Engineering Exploration & Surveying Co ltd
Current assignee: Beijing Tongchuangtiancheng Engineering Exploration & Surveying Co ltd
Priority date: 2020-11-27
Filing date: 2020-11-27
Publication date: 2022-05-27
Anticipated expiration: 2040-11-27
Also published as: CN112393716A

Abstract

The utility model belongs to the technical field of the track detects and specifically relates to a fixed bolster that relates to total powerstation forward looking prism, its technical scheme main points are including the prism, prism pole and bracing piece, the prism pole is articulated mutually with the upper end of bracing piece, the prism sets up in prism pole upper end, be provided with the heavy object that can make the prism be in vertical state at prism pole lower extreme, set up to the joint with rail looks adaptation at the bracing piece lower extreme, one side that the joint head held the nearly rail of head is for the plush copper that can the joint in rail waist department, reached and made things convenient for the purpose of prism pole location in order to keep the precision.

Description

Fixing support of total station forward-looking prism

Technical Field

The application relates to the field of rail detection, in particular to a fixed support of a total station forward-looking prism.

Background

The prism used in the prism assembly of the total station is called as a reflecting prism, and is used as a reflector for ranging. The total station sends out optical signals, receives the optical signals reflected back from the reflecting prism, and calculates the phase shift of the optical signals.

A total station prism assembly in the related art comprises a support and a reflecting prism connected to the support through a horizontal rotating shaft, wherein an adjusting gear and a pushing plate are arranged on the support, and a pushing rack meshed with the adjusting gear is arranged on one side of the pushing plate; when the adjusting gear is rotated, the pushing plate meshed with the adjusting gear pushes the reflecting prism to rotate circumferentially along the axis direction of the horizontal rotating shaft, and then an optical signal sent by the total station is reflected.

In view of the above-mentioned related art solutions, the inventors found that: when the staff uses the prism pole to fix a position the prism, need keep the prism pole to be in vertical position, higher and staff's handheld the rocking that can reduce the precision to staff's requirement.

Disclosure of Invention

In order to facilitate positioning of the prism rods to maintain accuracy, the present application provides a fixed support for a total station forward looking prism.

The application provides a fixed bolster of total powerstation forward looking prism adopts following technical scheme:

the utility model provides a fixed bolster of total powerstation forward looking prism, includes prism, prism pole and bracing piece, and the prism pole is articulated mutually with the upper end of bracing piece, and the prism setting is in prism pole upper end, is provided with the heavy object that can make the prism be in vertical state at prism pole lower extreme, sets up to the joint head with rail looks adaptation at the bracing piece lower extreme, and one side that the joint head was close to the rail is the plush copper that can the joint in rail waist department.

Through adopting above-mentioned technical scheme, because need keep the vertical direction of prism when using the prism, on the one hand be in order to the position of accurate location rail subaerial, on the other hand makes things convenient for the prism more to keep at same angle when measuring, improve measurement accuracy, articulate prism pole in the upper end of the support bar, and be provided with the heavy object at prism pole's the other end, the heavy object is under the action of gravity, prism pole will rotate to vertical direction on, make the prism keep at vertical, be provided with the joint head at the lower extreme of bracing piece, the joint head can with the rail joint, make the bracing piece can accurate location on the rail, the heavy object rotates prism pole to vertical direction under the action of gravity, still can keep measurement accuracy in quick measurement.

Preferably, the hinge axis of the prism rod and the support rod is spaced from the center of the prism by a distance greater than the weight of the weight, which is greater than the weight of the prism, to the hinge axis.

Through adopting above-mentioned technical scheme, the distance that the central point of prism put the connecting axle to be greater than the distance of heavy object to connecting axle, when the heavy object rotates the prism to vertical direction under the action of gravity, because inertia effect, heavy object and prism will make a round trip to rock before balanced, the range of rocking when the prism is greater than the range of rocking of heavy object, the prism is more sensitive to unbalanced rocking, and the articulated shaft is as little as possible to the inboard distance of rail, make when the bracing piece slope, the projection deviation of prism center at the rail inboard is as little as possible, make the positioning accuracy of prism higher.

Preferably, the prism is detachably connected to the prism shaft by a screw thread.

Through adopting above-mentioned technical scheme, because the prism belongs to fragile article, after using the completion, deposit after the prism need be dismantled, the integrality of protection prism can keep the use precision of prism when reusing again.

Preferably, a cross rod is arranged at the lower end of the supporting rod, the length of the cross rod is larger than the distance between two steel rails, and one end of the cross rod is fixedly connected with the supporting rod through bolts and nuts.

Through adopting above-mentioned technical scheme, because the rail generally is provided with two, use the horizontal pole to carry out the overlap joint with two rails, use the combined action of rail and horizontal pole to fix a position the bracing piece, improve bracing piece and rail positioning accuracy on the horizontal direction.

Preferably, the bracing piece is the square pole that the cross section equals with the connecting rod, at the junction of bracing piece, horizontal pole, sets up the spread groove that runs through two sides of bracing piece on the bracing piece, and the degree of depth of spread groove is half of bracing piece thickness, sets up the degree of depth on the horizontal pole and is half of the joint groove of horizontal pole thickness.

Through adopting above-mentioned technical scheme, the section shape of bracing piece and horizontal pole is the square and the size of cross section equals, sets up the spread groove on the bracing piece, has seted up the joint groove on the horizontal pole to joint groove and spread groove all run through two sides of horizontal pole and bracing piece, and the same half that is the square cross section of connecting rod and horizontal pole of cross section in spread groove and joint groove, when the bracing piece is connected with the horizontal pole, two sides of horizontal pole and bracing piece are located coplanar.

Preferably, the end of the cross rod far away from the support rod is provided with a clamping plate, the clamping plate is arranged below the cross rod, the clamping plate and the clamping head are respectively positioned at two adjacent sides of the two steel rails, the distance between the clamping plate and the clamping head is smaller than the distance between the two steel rails, one side of the clamping plate, which is close to the support rod, is provided with a clamping spring, and the other end of the clamping spring is connected with the cross rod through an ear plate.

Through adopting above-mentioned technical scheme, the horizontal pole is provided with the connecting plate in the one end below of keeping away from the bracing piece, and the connecting plate is connected with the horizontal pole through spring and otic placode, and when the horizontal pole was placed and is fixed a position the bracing piece between two rails, the protruding head end and the joint board combined action of joint fix a position the horizontal pole between two rails, restrict the horizontal pole on the rail along the ascending removal of extending direction of horizontal pole.

Preferably, one end of the clamping plate, which is far away from the supporting rod, is provided with a fixing block which is matched with the steel rail, the fixing block and the clamping plate are respectively positioned on two sides of the steel rail, and the distance from the fixing block to the clamping joint is equal to the distance between the two steel rails.

Through adopting above-mentioned technical scheme, set up the fixed block on the horizontal pole, the fixed block setting is kept away from one side of backup pad at the rail, puts into between two rails when the horizontal pole, and the fixed block is located one side that the joint board was kept away from to the rail to the inside of rail can be blocked to the fixed block, makes the horizontal pole joint on the rail, restricts the horizontal pole in the rail top.

Preferably, a rib plate is arranged on one side, close to the supporting rod, of the cross rod, one end of the rib plate is hinged to the cross rod, a clamping hole is formed in the other end of the rib plate, and a limiting hole capable of connecting the rib plate between the cross rod and the supporting rod is formed in the supporting rod.

Through adopting above-mentioned technical scheme, after the horizontal pole joint is on the rail, be provided with the floor of carrying out the dismantlement with the bracing piece between bracing piece and horizontal pole, and the floor rotates with the horizontal pole to be connected, after horizontal pole and rail carry out fixed joint, use the floor to be connected the horizontal pole with the bracing piece fixedly, the screens hole one end is kept away from to the floor is articulated with the horizontal pole, the other end uses bolt and nut to run through screens hole and spacing hole and is connected, make horizontal pole and bracing piece be connected the measurement accuracy that has improved prism on the bracing piece more steadily on the one hand, on the other hand when using the bracing piece to remove the horizontal pole, can keep the joint strength between horizontal pole and the bracing piece.

Preferably, the cross bar is provided with a storage hole, and the distance from the storage hole to the hinging shaft of the ribbed plate and the transverse plate is equal to the distance from the clamping hole to the hinging shaft of the ribbed plate and the transverse plate.

Through adopting above-mentioned technical scheme, seted up on the floor and put the thing hole, after the prism uses the completion, the floor is dismantled with the bracing piece, and the bolt and nut of dismantling can run through and put thing hole and screens the hole and fix floor and horizontal pole to the bolt and nut who will dismantle is repeated.

In summary, the present application has the following technical effects:

1. by arranging the supporting rod, the prism rod is hinged with the supporting rod, and the prism can be in a vertical state under the action of gravity by a heavy object;

2. by arranging the fixing block, after the cross rod is placed above the two steel rails, one end far away from the support rod clamps the cross rod on the steel rails through the fixing block, so that the cross rod can be kept in abutting connection with the steel rails when the support rod is stressed, and the measurement accuracy is improved;

3. through having set up the floor for consolidate between horizontal pole and the floor and be connected, not only can improve measurement accuracy, can use the bracing piece to remove the horizontal pole moreover.

Drawings

FIG. 1 is an overall configuration view of a fixing bracket in an embodiment of the present application;

FIG. 2 is an exploded view of a mounting bracket according to an embodiment of the present application;

fig. 3 is a partially enlarged view of a portion a in fig. 1.

In the figure, 1, a prism; 2. a prism rod; 21. a weight; 3. a support bar; 31. a clamping head; 32. connecting grooves; 33. a limiting hole; 4. a cross bar; 41. a clamping groove; 42. a placing hole; 5. a clamping and connecting plate; 51. a chucking spring; 6. a fixed block; 7. a rib plate; 71. a position clamping hole; 8. a steel rail.

Detailed Description

The present application is described in further detail below with reference to the accompanying drawings.

Referring to fig. 1, the application provides a fixed bolster of total powerstation forward looking prism, including prism 1, prism pole 2 and bracing piece 3, prism 1 sets up the one end at prism pole 2, prism pole 2's the other end is provided with heavy object 21, the weight of heavy object 21 is greater than prism 1's weight, prism pole 2 is articulated mutually with the upper end of bracing piece 3, prism 1 chooses for use the light high accuracy prism 1 of quality, the weight of heavy object 21 is obviously greater than prism 1's weight, when using prism 1 to measure the rail, place bracing piece 3 in 8 tops of rail, under the action of gravity, even bracing piece 3 inclines to place, heavy object 21 also can rotate along the articulated shaft of bracing piece 3 and prism pole 2 with prism 1, and finally can keep balance in vertical direction, make prism 1 center and articulated shaft be located the coplanar, guarantee measuring precision.

Referring to fig. 1 and 2, the distance from the center of the prism 1 to the articulated shaft is greater than the distance from the heavy object 21 to the articulated shaft, so that the prism 1 is more sensitive to the shaking of the support rod 3 during measurement, the measurement precision is higher, the distance from the articulated shaft to the steel rail 8 is as small as possible, and when the support rod 3 is tilted on the steel rail 8 for measurement, the projection deviation of the center of the prism 1 on the steel rail 8 is as small as possible, so that the measurement precision is ensured.

Referring to fig. 1 and 2, a clamping joint 31 is arranged below the support rod 3, the steel rail 8 is i-shaped steel, the rail head is arranged above the support rod, the rail bottom is arranged below the rail head, the middle portion of the support rod is a rail web, the clamping joint 31 is matched with the upper portion of the steel rail 8, a raised head capable of being clamped at the rail web is arranged on one side, close to the steel rail 8, of the clamping joint 31, when the support rod 3 is used for measuring on the steel rail 8, the raised head of the clamping joint 31 can be clamped at the rail web of the steel rail 8, and therefore the support rod 3 can be positioned on the steel rail 8 conveniently.

Referring to fig. 1 and 2, one side at bracing piece 3 is provided with horizontal pole 4, horizontal pole 4 sets up the position of end under being close to the bracing piece, horizontal pole 4 passes through bolt fixed connection with bracing piece 3, after the web department of joint 31 joint at rail 8, horizontal pole 4 can the overlap joint at the upper surface of rail 8 railheads, joint 31 and horizontal pole 4 restrict bracing piece 3 on rail 8, the length of horizontal pole 4 is greater than the interval between two rail 8, horizontal pole 4 can be with the overlap joint on the overhead surface of rail of two rail 8, two rail 8 support horizontal pole 4 and can play the positioning action to horizontal pole 4.

Referring to fig. 1 and 2, horizontal pole 4 is the square and the size equals with the section shape of bracing piece 3, in the junction of bracing piece 3 and horizontal pole 4, offer the spread groove 32 that supplies the embedding of horizontal pole 4 on the bracing piece 3, the degree of depth of spread groove 32 equals half of bracing piece 3 thickness, offer the joint groove 41 that supplies the embedding of bracing piece on horizontal pole 4, and the joint groove 41 degree of depth is half of horizontal pole 4 thickness, horizontal pole 4 equals with the thickness of bracing piece 3, consequently when bracing piece 3 is connected with horizontal pole 4, bracing piece 3 can block into inside the joint groove 41 of horizontal pole 4 and horizontal pole 4 can block into inside the spread groove 32 of bracing piece 3, make two parallel sides of bracing piece 3 and horizontal pole 4 be in the coplanar.

Referring to fig. 2 and 3, a clamping plate 5 is arranged below one end of the cross bar 4 far away from the support rod 3, the distance between the clamping plate 5 and the clamping joint 31 is less than the distance between the two steel rails 8, the clamping plate 5 and the clamping joint 31 on the support rod 3 are respectively arranged at two inner sides of the two steel rails 8, the clamping plate 5 can be abutted against the steel rails 8, one side of the clamping plate 5 far away from the steel rail 8 is connected with a clamping spring 51, one end of the clamping spring 51 far away from the clamping plate 5 is fixedly connected with the cross rod 4 through an ear plate, when the cross bar 4 is placed over the two rails 8, the clamping plate 5 under the cross bar 4 abuts against the rails 8 and the clamping spring 51 presses the clamping plate 5 against the rails 8, one end of the cross rod 4 far away from the clamping plate 5 is connected with the supporting rod 3, the clamping head 31 of the supporting rod 3 is clamped on the other steel rail 8, and the clamping plate 5 and the clamping head 31 jointly act to limit the movement of the cross rod 4 on the steel rail 8 along the extension direction of the cross rod 4.

Referring to fig. 2 and 3, the one end of keeping away from bracing piece 3 at horizontal pole 4 is provided with fixed block 6, fixed block 6 sets up the one side of keeping away from bracing piece 3 at joint plate 5, and fixed block 6 equals the distance between two rail 8 with the distance of joint 31, after horizontal pole 4 is placed on two rail 8, fixed block 6 can joint in rail 8's waist of rail department, fixed block 6 is located the both sides of rail 8 respectively with joint plate 5, fixed block 6 and joint plate 5 combined action are overhead with horizontal pole 4 restriction at rail 8's rail, when using bracing piece 3 to fix a position, fixed block 6 will restrict horizontal pole 4 on rail 8, make horizontal pole 4 can not break away from rail 8, improve measurement accuracy.

Referring to fig. 1 and 2, a rib 7 is disposed on a side of the cross bar 4 away from the support bar 3, one end of the rib 7 is hinged to the cross bar 4, the other end of the rib 7 extends in a direction away from the cross bar 4, a clamping hole 71 is arranged at the position of the ribbed plate 7 far away from the cross rod 4, a limiting hole 33 capable of connecting the ribbed plate 7 between the support rod 3 and the cross rod 4 is arranged on the support rod 3, a bolt and a nut penetrate through the limiting hole 33 and the clamping hole 71, the ribbed plate 7 is fixed on the support rod 3, the ribbed plate 7 is used for supporting the support rod 3 and the cross rod 4, the connection between the inner support rod 3 and the cross rod 4 is reinforced, so that when the support rod 3 is used for moving the cross rod 4, the position between the support rod 3 and the cross rod 4 can be kept unchanged, and the accuracy when the cross rod 4 is used for positioning the supporting rod 3 can be ensured, so that the supporting rod 3 and the cross rod 4 are always vertical.

Referring to fig. 1 and 2, a storage hole 42 is formed in one end of a cross bar 4 close to a connecting rod, the distance from a hinge shaft of a rib plate 7 and the cross bar 4 to the storage hole 42 is equal to the distance from a clamping hole 71 of the rib plate 7 to the hinge shaft, so that the clamping hole 71 of the rib plate 7 can correspond to the storage hole 42 of the cross bar 4 by rotating the rib plate 7, when a fixing support is not used, a support rod 3 is detached from the cross bar 4 and the rib plate 7, bolt nuts for connecting the support rod 3 with the cross bar 4 and the rib plate 7 are arranged on the cross bar 4, the bolt nuts detached from the connecting part of the rib plate 7 and the support rod 3 are arranged at the storage hole 42 and the clamping hole 71, the rib plate 7 and the cross bar 4 are fixed, another bolt is arranged in a clamping groove 41, so that the bolt nuts can be used repeatedly more conveniently, and the possibility of losing the bolt nuts can be reduced.

To sum up, the application process of this application is: when using the fixed bolster to fix prism 1, install bracing piece 3 on horizontal pole 4 earlier, then with 4 joints of horizontal pole on the railhead of two rail 8, the railhead that uses rail 8 fixes a position horizontal pole 4, horizontal pole 4 fixes a position bracing piece 3 with 7 combined action of floor, it is that 3 accurate location of bracing piece are on rail 8, because two rail 8 are not on same horizontal plane sometimes, can lead to bracing piece 3 can not vertically place, the heavy object 21 of 2 one ends of prism pole this moment can be under the action of gravity, make prism 1 keep in vertical direction, reduce the influence that measuring precision received.

The present embodiment is only for explaining the present application, and it is not limited to the present application, and those skilled in the art can make modifications of the present embodiment without inventive contribution as needed after reading the present specification, but all of them are protected by patent law within the scope of the claims of the present application.

Claims

1. A fixed bolster of total powerstation foresight prism which characterized in that: the steel rail joint comprises a prism (1), a prism rod (2) and a support rod (3), wherein the prism rod (2) is hinged with the upper end of the support rod (3), the prism (1) is arranged at the upper end of the prism rod (2), a weight (21) capable of enabling the prism (1) to be in a vertical state is arranged at the lower end of the prism rod (2), a joint head (31) matched with a steel rail (8) is arranged at the lower end of the support rod (3), and one side, close to the steel rail (8), of the joint head (31) is a raised head capable of being clamped at the rail waist;

a cross rod (4) is arranged at the lower end of the support rod (3), the length of the cross rod (4) is larger than the distance between two steel rails (8), and one end of the cross rod (4) is fixedly connected with the support rod (3) by bolts and nuts;

the supporting rod (3) and the cross rod (4) are square rods with the same section shapes, connecting grooves (32) penetrating through two side surfaces of the supporting rod (3) are formed in the connecting position of the supporting rod (3) and the cross rod (4), the depth of each connecting groove (32) is half of the thickness of the supporting rod (3), and clamping grooves (41) with the depth of half of the thickness of the cross rod (4) are formed in the cross rod (4);

one end of the cross rod (4) far away from the support rod (3) is provided with a clamping plate (5), the clamping plate (5) is arranged below the cross rod (4), the clamping plate (5) and the clamping head (31) are respectively positioned at two adjacent sides of the two steel rails (8), the distance between the clamping plate (5) and the clamping head (31) is smaller than the distance between the two steel rails (8), one side of the clamping plate (5) close to the support rod (3) is provided with a clamping spring (51), and the other end of the clamping spring (51) is connected with the cross rod (4) through an ear plate;

one end of the clamping plate (5) far away from the support rod (3) is provided with a fixing block (6) matched with the steel rail (8), the fixing block (6) and the clamping plate (5) are respectively positioned on two sides of the steel rail (8), and the distance from the fixing block (6) to the clamping joint (31) is equal to the distance between the two steel rails (8).

2. The fixed support of a total station forward looking prism as claimed in claim 1, characterized in that: the distance from the hinge shaft of the prism rod (2) and the support rod (3) to the center of the prism (1) is greater than the distance from the weight (21) to the hinge shaft, and the weight of the weight (21) is greater than the weight of the prism (1).

3. The fixed support of a total station forward looking prism as claimed in claim 2, characterized in that: the prism (1) is detachably connected with the prism rod (2) through threads.

4. The fixed support of a total station forward looking prism as claimed in claim 1, characterized in that: a ribbed plate (7) is arranged on one side, close to the supporting rod (3), of the cross rod (4), one end of the ribbed plate (7) is hinged to the cross rod (4), a clamping hole (71) is formed in the other end of the ribbed plate (7), and a limiting hole (33) capable of connecting the ribbed plate (7) between the cross rod (4) and the supporting rod (3) is formed in the supporting rod (3).

5. The fixed support of a total station forward looking prism as claimed in claim 4, characterized in that: the transverse rod (4) is provided with an object placing hole (42), and the distance from the object placing hole (42) to the ribbed plate (7) and the articulated shaft of the transverse plate is equal to the distance from the clamping hole (71) to the articulated shaft of the ribbed plate (7) and the transverse rod (4).