CN210439129U

CN210439129U - Rotating shaft type bridge expansion device

Info

Publication number: CN210439129U
Application number: CN201920864561.4U
Authority: CN
Inventors: 龚宗明; 程小丹
Original assignee: Jiangsu Maurer New Material Technology Co ltd
Current assignee: Jiangsu leading mengmaole Zhizao Technology Group Co., Ltd
Priority date: 2019-06-11
Filing date: 2019-06-11
Publication date: 2020-05-01
Anticipated expiration: 2029-06-11

Abstract

The utility model discloses a rotary shaft type bridge expansion device, which comprises a first bridge body, an adjusting column body and a second bridge body, the top end and the bottom end of the adjusting column body are provided with mounting plate grooves, spring mounting plates are arranged in the mounting plate grooves, a threaded column telescopic groove is arranged in the adjusting column body, one end of the threaded column telescopic groove is penetrated through the mounting plate groove, a threaded column is arranged in the threaded column telescopic groove, a clamping block is arranged at one end of the threaded column extending into the mounting plate groove, a worm wheel is arranged on the threaded column, a worm is arranged on one side of the worm wheel, a telescopic spring is arranged at the center of the surface of the spring mounting plate, the telescopic spring is provided with a hinged column, two sides of the top end of the hinged column are hinged with connecting rods, the hinged column is connected with a second hinged joint through the connecting rods, and the second hinged joint is connected with a first hinged joint through the connecting rods. The utility model discloses, use the balanced dynamics of expanding spring, facilitate the use more.

Description

Rotating shaft type bridge expansion device

Technical Field

The utility model relates to a bridge technical field specifically is a pivot formula bridge telescoping device.

Background

The bridge is at the in-process that uses, often can use the telescoping device to when satisfying the bridge and taking place deformation in the use, the telescoping device can eliminate deformation to the holistic influence of bridge.

The utility model discloses an applicant discovers, and current bridge extending structure adopts rigid structure between mostly in the use, and the dynamics is piled up easily and is caused the bridge to damage, uses comparatively inconveniently.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a pivot formula bridge telescoping device to solve the current bridge extending structure among the prior art and adopt rigid structure between mostly in the use, the dynamics is piled up easily and is caused bridge damage scheduling problem.

In order to achieve the above object, the utility model provides a following technical scheme:

a rotary shaft type bridge expansion device comprises a first bridge body, an adjusting cylinder body and a second bridge body, wherein a mounting plate groove is formed in the top end and the bottom end of the adjusting cylinder body, the top end and the bottom end of the adjusting cylinder body are centrosymmetric, a spring mounting plate is mounted in the mounting plate groove, a clamping hole is formed in the larger end of the spring mounting plate, the cross section of the clamping hole is in a right trapezoid shape, a threaded column expansion groove is formed in the adjusting cylinder body, one end of the threaded column expansion groove is communicated with the mounting plate groove, a threaded column is mounted in the threaded column expansion groove, one end of the threaded column extends into the mounting plate groove, a clamping block is mounted at the end, extending into the mounting plate groove, of the threaded column, a worm wheel is mounted on the threaded column, a worm is mounted on one side of the worm wheel, and an expansion spring is mounted at the surface center of the spring mounting plate, the telescopic column is installed on the telescopic spring, the two ends of the telescopic spring are fixedly connected with the spring mounting plate and the hinge column respectively, the two sides of the top end of the hinge column are hinged with connecting rods, the hinge column is connected with the second hinge head through the connecting rods, the second hinge head is connected with the spring mounting plate through the telescopic spring, the second hinge head is connected with the first hinge head through the connecting rods, and the first hinge head is connected with the first bridge body and the second bridge body through bolts respectively.

Preferably, an adjusting groove is formed in one side, opposite to the first bridge body and the second bridge body, two ends of the adjusting column body are inserted into the adjusting groove, and the adjusting column body is in transition fit with the adjusting groove.

Preferably, the spring mounting plate and the mounting plate groove are L-shaped in cross section, and the smaller end of the spring mounting plate and the mounting plate groove is obliquely arranged.

Preferably, the threaded column is connected with the clamping block through a bearing, and the cross section of the clamping block is in a right trapezoid shape and is matched with the clamping hole.

Preferably, the inner wall of the worm wheel is provided with internal threads, and the worm wheel is connected with the threaded column through threads.

Preferably, the worm is connected with the adjusting cylinder through a bearing, one end of the worm penetrates through the adjusting cylinder, and a straight groove is formed in the end portion of the end of the worm.

Compared with the prior art, the beneficial effects of the utility model are that:

1. first articulated joint is installed on first pontic and second pontic, and hinge post and second articulated joint pass through expanding spring and spring mounting board and link to each other, and when the distance between first pontic and the second pontic changed, can compress or tensile connecting rod, expanding spring is compressed or tensile to balanced dynamics, facilitate the use more.

2. The worm drives the worm wheel to rotate, the worm wheel drives the clamping block on the threaded column to move along with the worm wheel, the clamping block is clamped in the clamping hole of the spring mounting plate, the spring mounting plate is mounted, and the self-locking function of the worm wheel and the worm is utilized to avoid loosening during long-time use.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the internal structure of the adjusting cylinder of the present invention;

fig. 3 is an installation schematic diagram of the adjusting cylinder of the present invention.

In the figure: 1. a first bridge body; 2. an adjustment cylinder; 3. an adjustment groove; 4. a second bridge body; 5. a first hinge joint; 6. a connecting rod; 7. a hinged column; 8. a tension spring; 9. a second hinge joint; 10. a spring mounting plate; 11. installing a plate groove; 12. a clamping hole; 13. a clamping block; 14. a threaded post; 15. a worm; 16. A worm gear; 17. the screw thread post expansion groove.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, in the embodiment of the present invention, a rotary shaft type bridge expansion device comprises a first bridge body 1, an adjusting cylinder 2 and a second bridge body 4, an adjusting groove 3 is formed on one side of the first bridge body 1 opposite to the second bridge body 4, two ends of the adjusting cylinder 2 are inserted into the adjusting groove 3, the adjusting cylinder 2 is in transition fit with the adjusting groove 3, a mounting plate groove 11 is formed on the top end and the bottom end of the adjusting cylinder 2, the mounting plate groove 11 on the top end and the bottom end of the adjusting cylinder 2 are centrally symmetric, a spring mounting plate 10 is installed in the mounting plate groove 11, the cross-sectional shapes of the spring mounting plate 10 and the mounting plate groove 11 are both L-shaped, the smaller end of the spring mounting plate 10 and the mounting plate groove 11 is inclined, a clamping hole 12 is formed on the larger end of the spring mounting plate 10, the cross-sectional shape of the clamping hole 12 is right trapezoid, a threaded column expansion groove 17 is, one end of a threaded column telescopic groove 17 penetrates through the mounting plate groove 11, a threaded column 14 is installed in the threaded column telescopic groove 17, one end of the threaded column 14 extends into the mounting plate groove 11, a clamping block 13 is installed on one end, extending into the mounting plate groove 11, of the threaded column 14, the threaded column 14 is connected with the clamping block 13 through a bearing, the section of the clamping block 13 is in a right trapezoid shape and matched with the clamping hole 12, a worm wheel 16 is installed on the threaded column 14, inner threads are arranged on the inner wall of the worm wheel 16, the worm wheel 16 is connected with the threaded column 14 through threads, a worm 15 is installed on one side of the worm wheel 16, the worm 15 is connected with the adjusting cylinder 2 through the bearing, one end of the worm 15 penetrates through the adjusting cylinder 2, a linear groove is formed in the end part of the end, the worm wheel 16 is driven to rotate through the worm 15, the worm wheel 16 drives the threaded column 14 to move along, the installation of the spring installation plate 10 is realized, an expansion spring 8 is installed in the center of the surface of the spring installation plate 10, a hinge column 7 is installed on the expansion spring 8, two ends of the expansion spring 8 are fixedly connected with the spring installation plate 10 and the hinge column 7 respectively, two sides of the top end of the hinge column 7 are hinged with a connecting rod 6, the hinge column 7 is connected with a second hinge joint 9 through the connecting rod 6, the second hinge joint 9 is connected with the spring installation plate 10 through the expansion spring 8, the second hinge joint 9 is connected with a first hinge joint 5 through the connecting rod 6, the first hinge joint 5 is connected with a first bridge body 1 and a second bridge body 4 through bolts respectively, when the distance between the first bridge body 1 and the second bridge body 4 changes, the connecting rod 6 can be compressed or stretched, and the expansion spring 8 is compressed or stretched; the second hinge 9 passes through connecting rod 6 and hinge post 7, first hinge 5 links to each other, first hinge 5 is installed on first pontic 1 and second pontic 4, hinge post 7 and second hinge 9 link to each other with spring mounting panel 10 through expanding spring 8, during installation spring mounting panel 10, insert spring mounting panel 10 in mounting panel groove 11, the one end card of slope is in the one end of mounting panel groove 11 slope, drive worm wheel 16 through worm 15 and rotate, worm wheel 16 drives joint piece 13 motion on the screw post 14 thereupon, the card is in joint hole 12 of spring mounting panel 10, realize the installation of spring mounting panel 10 through the connection of joint piece 13 and joint hole 12, when the distance between first pontic 1 and the second pontic 4 changes, can compress or tensile connecting rod 6, expanding spring 8 is compressed or stretched, with balanced dynamics.

The utility model discloses a theory of operation and use flow:

when the device is used, the second hinge joint 9 is connected with the hinge column 7 through the connecting rod 6, the first hinge joint 5 is connected with the first bridge body 1 and the second bridge body 4, the hinge column 7 and the second hinge joint 9 are connected with the spring mounting plate 10 through the expansion spring 8, when the spring mounting plate 10 is mounted, the spring mounting plate 10 is inserted into the mounting plate groove 11, one inclined end of the inclined end is clamped at one inclined end of the mounting plate groove 11, the worm 15 drives the worm wheel 16 to rotate, the worm wheel 16 drives the clamping block 13 on the threaded column 14 to move along with the worm wheel, the clamping block is clamped in the clamping hole 12 of the spring mounting plate 10, the mounting of the spring mounting plate 10 is realized through the connection of the clamping block 13 and the clamping hole 12, when the distance between the first bridge body 1 and the second bridge body 4 changes, the connecting rod 6 can be compressed or stretched, the expansion spring 8 is compressed or stretched, and the.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a pivot formula bridge telescoping device, includes first pontic (1), adjusts cylinder (2) and second pontic (4), its characterized in that: the adjustable screw column is characterized in that a mounting plate groove (11) is formed in the top end and the bottom end of the adjusting column body (2), the top end of the adjusting column body (2) is symmetrical to the center of the mounting plate groove (11) of the bottom end, a spring mounting plate (10) is mounted in the mounting plate groove (11), a clamping hole (12) is formed in the larger end of the spring mounting plate (10), the cross section of the clamping hole (12) is in a right trapezoid shape, a screw column telescopic groove (17) is formed in the adjusting column body (2), one end of the screw column telescopic groove (17) is penetrated through the mounting plate groove (11), a screw column (14) is mounted in the screw column telescopic groove (17), one end of the screw column (14) extends into the mounting plate groove (11), a clamping block (13) is mounted on one end of the screw column (14) extending into the mounting plate groove (11), and a worm wheel (16) is mounted on the screw column (14, worm (15) are installed to one side of worm wheel (16), surface center department of spring mounting panel (10) installs expanding spring (8), install hinge post (7) on expanding spring (8), the both ends of expanding spring (8) link to each other with spring mounting panel (10), hinge post (7) are fixed respectively, the top both sides of hinge post (7) are articulated to have connecting rod (6), hinge post (7) link to each other with second hinge (9) through connecting rod (6), second hinge (9) link to each other with spring mounting panel (10) through expanding spring (8), second hinge (9) link to each other with first hinge (5) through connecting rod (6), first hinge (5) link to each other with first pontic (1), second pontic (4) respectively through the bolt.

2. The rotary shaft type bridge expansion device of claim 1, wherein: adjustment tank (3) have been seted up to one side that first pontic (1) and second pontic (4) are relative, insert in adjustment tank (3) at the both ends of adjusting cylinder (2), adjust cylinder (2) and adjustment tank (3) transition fit.

3. The rotary shaft type bridge expansion device of claim 1, wherein: the cross-sectional shape of spring mounting panel (10) and mounting panel groove (11) is the L font, the less one end in spring mounting panel (10) and mounting panel groove (11) sets up for the slope.

4. The rotary shaft type bridge expansion device of claim 1, wherein: the threaded column (14) is connected with the clamping block (13) through a bearing, and the cross section of the clamping block (13) is in a right trapezoid shape and is matched with the clamping hole (12).

5. The rotary shaft type bridge expansion device of claim 1, wherein: the inner wall of the worm wheel (16) is provided with internal threads, and the worm wheel (16) is connected with the threaded column (14) through threads.

6. The rotary shaft type bridge expansion device of claim 1, wherein: the worm (15) is connected with the adjusting cylinder (2) through a bearing, one end of the worm (15) penetrates through the adjusting cylinder (2), and a straight groove is formed in the end portion of the end.