CN111130035B

CN111130035B - Bridge frame

Info

Publication number: CN111130035B
Application number: CN202010069166.4A
Authority: CN
Inventors: 郭智昊
Original assignee: Individual
Current assignee: Guo Zhihao
Priority date: 2020-01-21
Filing date: 2020-01-21
Publication date: 2021-02-19
Anticipated expiration: 2040-01-21
Also published as: CN111130035A

Abstract

The invention relates to the technical field of bridge frames, in particular to a bridge frame which comprises at least two bases and a plurality of fixing pieces, wherein adjacent bases are connected through the fixing pieces, each fixing piece comprises a connecting end and a fixing end, the connecting ends and the fixing ends are respectively arranged on the adjacent bases, a bending part is arranged between the adjacent bases and comprises a plurality of connecting pieces and telescopic supports, the adjacent connecting pieces of the telescopic supports are rotatably connected through the telescopic supports, the telescopic supports at the head ends and the tail ends are respectively detachably arranged on the adjacent bases, the connecting pieces are mutually attached under the condition that the connecting ends are connected with the fixing ends, and movable gaps are formed between the adjacent connecting pieces under the condition that the connecting ends are not connected with the fixing ends. The bridge frame is provided with the connecting pieces, so that the bridge frame can be freely bent without an additional bending piece, and the arrangement of the fixing pieces ensures the stability of the bridge frame when the bridge frame is used as a straight line.

Description

Bridge frame

Technical Field

The invention relates to the technical field of bridges, in particular to a bridge.

Background

The cable bridge is divided into structures such as a groove type cable bridge, a tray type cable bridge, a ladder type cable bridge, a grid bridge and the like, and is composed of a support, a supporting arm, an installation accessory and the like. The steel plate can be independently erected and also can be laid on various buildings (structures) and pipe gallery supports, the characteristics of simple structure, attractive appearance, flexible configuration, convenience in maintenance and the like are reflected, all parts need to be galvanized and installed on an outdoor bridge outside the building, and if the steel plate is near the seaside or belongs to a corrosive area, the steel plate must have the physical characteristics of corrosion resistance, moisture resistance, good adhesive force and high impact strength.

The prior art has the following problems that the bent connection installation of the bridge frame is realized, the bent part is usually directly connected additionally, and some existing bridge frames are provided with a region with one bendable end, so that the bridge frame can be bent horizontally during installation but cannot be bent up and down, and when the bridge frame is not bent and connected and is used as a straight line connection, the bent part is easy to swing due to flexibility to cause instability of the bridge frame.

Disclosure of Invention

Therefore, it is desirable to provide a bridge frame, which can be bent in any direction by providing a plurality of connecting members and engaging with the fixing members, and is more stable and firm when connected as a straight line.

In order to achieve the purpose, the invention provides a bridge frame which comprises at least two bases and a plurality of fixing parts, wherein the adjacent bases are connected through the fixing parts, each fixing part comprises a connecting end and a fixed end, the connecting ends and the fixed ends are respectively arranged on the adjacent bases, a plurality of connecting pieces and telescopic supports are arranged between the adjacent bases, the connecting pieces are connected in a telescopic mode through the telescopic supports in parallel, the adjacent connecting pieces are mutually attached and are not connected, each telescopic support comprises a plurality of horizontal connecting rods and a plurality of vertical connecting rods, the horizontal connecting rods and the connecting pieces are sequentially connected in a damping mode to form a horizontal bending portion, the horizontal connecting rods at the head end and the tail end are respectively detachably arranged on the two adjacent bases, or the vertical connecting rods and the connecting pieces are sequentially connected in a damping mode to form a vertical bending portion, the vertical connecting rods at the head end and the tail end are respectively detachably arranged on the telescopic supports of the two adjacent bases The connecting pieces are matched with the fixing pieces, so that the bridge frame can be bent in any direction, and is more stable and firm when being connected linearly.

Further, base and connecting piece are the U type, horizontal connecting rod and vertical connecting rod rotate respectively and set up two inside walls at connecting piece and base symmetry, the horizontal plane of horizontal connecting rod is parallel with the horizontal plane of connecting piece and base tank bottom and is located the top of connecting piece and base, the horizontal plane of vertical connecting rod is parallel with the vertical face of connecting piece and base lateral wall and is located the bottom of connecting piece and base. The telescopic support of the telescopic support is connected with the plurality of connecting pieces in series through the telescopic support of the telescopic support, so that the plurality of connecting pieces can be matched with each other to swing at will.

Still further, the inside wall at connecting piece and base top is equipped with the horizontal rotation connecting plate along the width direction protrusion of base tank bottom, the horizontal rotation connecting plate of connecting piece is in same horizontal plane with the horizontal rotation connecting plate of base, the horizontal connecting rod rotates and sets up on the horizontal rotation connecting plate, the bottom of connecting piece and the bottom of base are equipped with vertical rotation connecting plate along the direction of height protrusion of base tank bottom, vertical connecting rod rotates and sets up on vertical rotation connecting plate, the horizontal rotation connecting plate and the vertical rotation connecting plate of base all are equipped with a knob, the knob passes through threaded fixing and installs on horizontal rotation connecting plate and vertical rotation connecting plate, horizontal connecting rod and vertical connecting rod rotate the connecting plate with the level and are connected with vertical rotation connecting plate rotation. And the horizontal connecting rod or the vertical connecting rod is disassembled and assembled according to the rotation requirement.

Further, the quantity of mounting is three, and is three the link sets up the interior bottom and two outer facades at a base respectively, the link is parallel with the long side of base, and is three the stiff end sets up the interior bottom and two outer facades at another base respectively, the stiff end is parallel with the long side of base, and is three the link is with three the connection face of stiff end is located same vertical face, the position of stiff end is corresponding with the position of link. The three-side fixing enables the fixing to be firmer, and the fixing device can be detached without influencing the bending use.

Furthermore, the connecting end comprises a first fixing box and a connecting rod, a first spring is embedded in the first fixing box, one end of the connecting rod is embedded in the first fixing box and is fixedly connected with the first spring, the other end of the connecting rod is provided with a through hole along the height direction of the first fixing box in a penetrating way, the fixed end comprises a second fixed box and a fixed rod, a second spring is embedded in the second fixed box, one end of the fixed rod is embedded in the second fixed box and is fixedly connected with the second spring, the other end of the fixed rod is arranged towards the connecting rod and is provided with an Contraband-shaped connecting port, the opening of connector sets up towards the connecting rod, the connecting rod inlays to be established in the connecting rod, the connector runs through along the direction of height of connecting rod to be provided with and rotates the hole and be linked together with the through-hole, it is equipped with the dwang to rotate hole and through-hole embedded. So that the connecting rod and the fixed rod can swing around the rotating rod, and a supporting point can be arranged when the bending is carried out, so that the bending is smoother.

Further, the top of dwang is equipped with a arm-tie along outside protrusion outward, the arm-tie is equipped with the third spring with the top of connector, the bottom of third spring dwang and the bottom of connector are in on same horizontal plane under natural state, the bottom of third spring dwang is located the top of through-hole under the tensile state to be not located the through-hole. The self elasticity through the third spring makes stable the inlaying of dwang establish in through-hole and pivoted hole, and also is fairly simple when dismantling.

Furthermore, the through hole penetrating direction of the connecting rod at the bottom of the base groove and the bottom surface of the bottom of the base groove are in the same horizontal plane, and the through hole penetrating direction of the connecting rod at the side wall of the base is perpendicular to the bottom surface of the bottom of the base groove. The structure is arranged so that a bending supporting point exists in both left and right bending and up and down bending on a horizontal plane.

Furthermore, the upper cover is further arranged, a flexible portion is arranged at the middle end of the upper cover and is made of wavy elastic rubber, protruding plates are arranged on two long side edges of the upper cover and extend downwards along the thickness of the upper cover, and the distance between the protruding plates is matched with the width of the groove opening of the base. The upper cover has a certain protection effect on the base groove, and the elastic rubber can be matched with the base to stretch and bend.

Furthermore, the lateral wall of base is equipped with the fixed block along the length direction of tank bottom outstanding, the side of upper cover is equipped with hangs and detains, it establishes on the fixed block to hang the knot. So that the upper cover is stably fixed on the base.

Furthermore, two symmetrical side walls of the base are provided with connecting holes in a penetrating mode along the caliber direction of the notch, and the bottom of the base is provided with a supporting platform in an upward protruding mode along the height of the side walls. So that the base can have a stable supporting and fixing point when the cable is installed.

Different from the prior art, the technical scheme has the following beneficial effects:

1. the bridge frame is provided with the connecting pieces, so that the bridge frame can be freely bent without an additional bending piece, and the arrangement of the fixing pieces ensures the stability of the bridge frame when the bridge frame is used as a straight line.

2. According to the invention, the rotating rod is arranged on the fixing part, so that a turning point can be formed when the fixing part is bent towards one direction, and the bending can be smoother.

3. According to the invention, the springs are arranged in the fixing piece, so that the connecting pieces can be naturally attached to each other under the condition of no acting force, and the bridge can be kept straight when being applied as a straight line, and the normal use is not influenced.

4. The upper cover plays a certain role in protecting the base groove of the base, and the elastic rubber can be matched with the base to stretch and bend.

Drawings

FIG. 1 is a schematic structural diagram of a bridge frame according to the prior art;

FIG. 2 is a schematic diagram of an embodiment of the bridge stretching configuration;

FIG. 3 is a schematic diagram of a bridge capping configuration according to an embodiment;

FIG. 4 is an enlarged schematic view of an embodiment at bridge A;

FIG. 5 is a top view of an embodiment of the bridge;

FIG. 6 is a side view of an embodiment of the bridge bent upward;

FIG. 7 is a top view of an embodiment of the bridge bent horizontally;

FIG. 8 is a schematic structural view of a fastener according to an embodiment;

FIG. 9 is a schematic view of a horizontal bend according to an embodiment;

fig. 10 is a schematic structural view of the vertical bending part according to the embodiment.

Description of reference numerals:

1. base, 101, connecting hole, 102, a supporting table, 103, the fixed block, 2, the mounting, 201, the link, 202, the stiff end, 203, the connecting rod, 204, the dead lever, 205, first fixed box, 206, the fixed box of second, 207, first spring, 208, the second spring, 209, the third spring, 210, the dwang, 301, the connecting piece, 302, the connecting rod, 3021, horizontal connecting rod, 3022, vertical connecting rod, 303, horizontal rotation connecting plate, 304, vertical rotation connecting plate, 305, the knob, 4, the upper cover, 401, elastic rubber, 402, the knot hangs.

Detailed Description

To explain technical contents, structural features, and objects and effects of the technical solutions in detail, the following detailed description is given with reference to the accompanying drawings in conjunction with the embodiments.

Referring to fig. 1 to 10, the bridge frame of the present embodiment includes two bases 1 and three fixing members 2, where the base 1 is U-shaped, two side walls of the U-shaped base 1 are provided with clamping plates protruding outward, two symmetrical side walls of the base 1 are provided with connecting holes 101 penetrating along a caliber direction of a notch, a supporting platform 102 is protruding upward at a bottom of the base 1 along a height of the side walls, the supporting platform 102 is a rectangular parallelepiped, and two short side walls of the rectangular parallelepiped supporting platform 102 are fixedly connected to two symmetrical side walls of the base 1. So that a stable supporting and fixing point is provided in the base 1 when the cable is installed. Every mounting 2 all includes link 201 and stiff end 202, link 201 and stiff end 202 set up respectively on two bases 1, the quantity of mounting 2 is three, three link 201 sets up respectively at the interior bottom surface and two outer facades of a base 1, link 201 is parallel with the long side of base 1, and link 201 on two outer facades is symmetrical each other, and is three a side of link 201 is in the same horizontal plane with the vertical face of base 1, and is three stiff end 202 sets up respectively at the interior bottom surface and two outer facades of another base 1, link 202 is parallel with the long side of base 1, and the stiff end 202 of two outer facades is symmetrical each other, and three a side of link 202 is in the same horizontal plane with the vertical face of base 1, and is three the position of stiff end 202 is corresponding with three position of link 201 respectively, the connection surfaces of the three connection ends 201 and the three fixed ends 202 are located on the same vertical plane, which is the central axis plane of the connection member 301 located at the middle of the five connection members 301. The three-side fixing enables the fixing to be firmer, and the fixing device can be detached without influencing the bending use. The connecting end 201 comprises a first fixed box 205 and a connecting rod 203, a first spring 207 is embedded in the first fixed box 205, one end of the first spring 207 is fixedly connected with the inner wall of the first fixed box 205 to form an immovable end, the other end of the first spring forms a movable end, one end of the connecting rod 203 is embedded in the first fixed box 205 and is fixedly connected with the movable end of the first spring 207, the connecting rod 203 can slide in the first fixed box 205 to stretch and compress the first spring 207, the other end of the connecting rod 203 penetrates through a through hole along the height direction of the first fixed box 205, the fixed end 202 comprises a second fixed box 206 and a fixed rod 204, a second spring 208 is embedded in the second fixed box 206, one end of the second spring 208 is fixedly connected with the inner wall of the second fixed box 206 to form an immovable end, the other end of the second spring forms a movable end, one end of the fixed rod 204 is embedded in the second fixed box 206 and is fixedly connected with the movable end of the second spring 208, the dead lever 204 can slide in the fixed box 206 of second and stretch compression second spring 208, the other end of dead lever 204 sets up and is equipped with an Contraband type connector towards connecting rod 203 direction, the opening of connector sets up towards connecting rod 203, connecting rod 203 inlays to be established in the connector, the connector runs through along the direction of height of connecting rod 203 and is provided with the rotation hole and is linked together with the through-hole, the embedded dwang 210 that is equipped with of rotation hole through-hole. So that the connecting rod 203 and the fixing rod 204 can swing around the rotating rod 210 to have a supporting point at the time of bending, making the bending smoother. Specifically, the through hole penetrating direction of the connecting rod 203 at the bottom of the base 1 groove is in the same horizontal plane with the bottom surface of the base 1 groove, and the through hole penetrating direction of the connecting rod 203 at the side wall of the base 1 is perpendicular to the bottom surface of the base 1 groove. The structure is arranged to form a bending supporting point whether the bending is left-right bending or up-down bending on a horizontal plane. The top of dwang 210 is equipped with a arm-tie along outside protrusion outward, the arm-tie is equipped with third spring 209 with the top of connector, and third spring 209 encircles dwang 210 and sets up, the top bottom of third spring 209 respectively with the bottom of arm-tie and the bottom fixed connection of connector, third spring 209 is in on same horizontal plane with the bottom of connector the bottom of dwang 210 under the natural condition, the bottom of third spring 209 is located the top of through-hole under the tensile state in the through-hole to be not located in the through-hole. The rotating rod 210 is stably inserted into the through hole and the rotating hole by the self-elasticity of the third spring 209, and is also quite simple to detach.

In this embodiment, a plurality of connecting members 301 and a telescopic bracket are disposed between two bases 1, which are connected to each other through a connecting end 201 and a fixing end 202 in a matching manner, the connecting members are U-shaped, the shape of the plurality of connecting members 301 is identical to that of the bases 1, preferably, five connecting members 301 are used, the plurality of connecting members 301 are telescopically connected side by side through the telescopic bracket, adjacent connecting members 301 are attached to each other and are not connected to each other, the telescopic bracket includes a plurality of horizontal connecting rods 3021 and a plurality of vertical connecting rods 3022, the plurality of horizontal connecting rods 3021 and the plurality of connecting members 301 are sequentially connected through damping to form a horizontal bending portion, the horizontal bending portion does not include a vertical connecting rod 3022, that is, the vertical connecting rod 3022 is detached from the vertical rotating connecting plate 304 through rotation of a knob 305, the horizontal connecting rods 3021 at the head end and the tail end are respectively detachably disposed on the adjacent two bases 1, or the plurality of, the vertical bending part does not comprise a horizontal connecting rod 3021, that is, the horizontal connecting rod 3021 is detached by rotating the knob 305 to separate from the horizontal rotating connecting plate 303, the vertical connecting rods 3022 at the head end and the tail end are respectively detachably disposed on two adjacent bases, specifically, the horizontal connecting rods 3021 are respectively disposed on two symmetrical inner side walls of the connecting piece 301 and the base 1, the horizontal plane of the horizontal connecting rod 3021 is parallel to the horizontal plane of the bottom of the connecting piece 301 and the bottom of the base 1, the horizontal rotating connecting plate 303 is convexly disposed on the inner side walls of the top of the connecting piece 301 and the top of the base 1 along the width direction of the bottom of the base 1, the horizontal rotating connecting plate 303 of the connecting piece 301 and the horizontal rotating connecting plate 303 of the base 1 are at the same horizontal plane, the horizontal connecting rod 3021 is rotatably disposed on the horizontal rotating connecting plate 303, and, the horizontal plane of the vertical link 3022 is parallel to the vertical plane of the side wall of the connecting piece 301 and the base 1, the bottom of the connecting piece 301 and the bottom of the base 1 are convexly provided with a vertical rotating connecting plate 304 along the height direction of the bottom of the base 1, the vertical link 3022 is rotatably arranged on the vertical rotating connecting plate 304, the horizontal rotating connecting plate 303 and the vertical rotating connecting plate 304 of the base 1 are both provided with a knob 305, the knob 305 is fixedly mounted on the horizontal rotating connecting plate 303 and the vertical rotating connecting plate 304 through threads, and the horizontal link 3021 and the vertical link 3022 are rotatably connected with the knob 305, so that the horizontal link 3021 or the vertical link 3022 can be dismounted according to the rotation requirement. The horizontal link 3021 and the vertical link 3022 have the same structure. The plurality of connecting pieces 301 are connected in series through the telescopic bracket 302, so that the plurality of connecting pieces 301 can be matched with each other to freely swing. The five connecting pieces 301 are mutually attached through the matching of the connecting rod 203 and the fixing rod 204 under the condition of no external force, and the connecting rod 203 and the fixing rod 204 are separated from adjacent connections to form a movable gap under the condition of external force of the five connecting pieces 301. Through being equipped with a plurality of connecting pieces 301 cooperation mounting 2 for the crane span structure can be buckled by arbitrary direction, and more stable firm when being linear connection.

In this embodiment, the upper cover 4 is further provided, the middle end of the upper cover 4 is provided with a flexible portion, the flexible portion is a wavy elastic rubber 401, two long sides of the upper cover 4 extend downwards along the thickness of the upper cover 4 to be provided with convex plates, and the distance between the convex plates is matched with the width of the notch of the base 1. The upper cover 4 protects the groove of the base 1, and the elastic rubber 401 can be matched with the base 1 to stretch and bend. Specifically, the short lateral wall of base 1 cardboard is equipped with fixed block 103 along the length direction of tank bottom is outstanding, the short lateral surface of upper cover 4 flange is equipped with hangs knot 402, hang knot 402 and be the rubber material and be equipped with a hole, it establishes on fixed block 103 to hang knot 402 knot. So that the upper cover 4 is stably fixed on the base 1.

When the bridge is used specifically, five connecting pieces 301 are placed between two bases 1, then the five connecting pieces 301 are telescopically connected with the two bases 1 through a horizontal rotating connecting plate 303 and a vertical rotating connecting plate 304, the assembled bridge is installed to a specified position, then cables are respectively arranged in the bases 1 and are arranged to be attached to a support table 102, when a place needing to be bent upwards or downwards is met, the fixing piece 2 on the side surface of each base 1 is firstly disassembled, the pulling plate is pulled to drive the third spring 209 to stretch so that the rotating rod 210 is separated from the through hole, so that the connecting rod 203 and the fixing rod 204 are separated, then the horizontal connecting rod 3021 is disassembled, only the vertical connecting rod 3022 is installed, then the two bases 1 are stretched to different directions so that the connecting pieces 301 can be separated through the stretching of the vertical connecting rod 3022, and the connecting rod 203 and the fixing rod 204 at the bottom of each base 1 can stretch the first spring 207 in the first fixing box 205 and the second spring 208 in the second, then, a base 1 is bent upwards or downwards, so that five connecting pieces 301 are arranged in an arc line around the rotating rod 210 of the base fixing piece 2 of the base 1 to form corners, then two bases 1 are fixed on another bridge frame through the connecting holes 101, when a place needing horizontal bending is met, the fixing pieces 2 on one side surface and the bottom surface of the base 1 are disassembled, the rotating rod 210 is separated from the through hole by pulling the pulling plate to drive the third spring 209 to stretch, so that the connecting rod 203 and the fixing rod 204 are separated, then the vertical connecting rod 3022 is disassembled, only the horizontal connecting rod 3021 is installed, then the two bases 1 are stretched in different directions so that the connecting pieces 301 are separated through the stretching of the horizontal connecting rod 3021, the connecting rod 203 and the fixing rod 204 on the side surface of the base 1 stretch the first spring 207 in the first fixing box 205 and the second spring 208 in the second fixing box, and then one base 1 is bent horizontally, thus, the five connecting members 301 are sequentially arranged along an arc around the rotating rods 210 of the fixing member 2 on the other side surface of the base 1 to form corners, then the two bases 1 are fixed on another bridge frame through the connecting holes 101, the upper cover 4 is covered on the base 1 after the bending connection is completed, and then the hanging buckle 402 is buckled on the fixing block 103 to be fixed.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or terminal that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or terminal. Without further limitation, an element defined by the phrases "comprising … …" or "comprising … …" does not exclude the presence of additional elements in a process, method, article, or terminal that comprises the element. Further, herein, "greater than," "less than," "more than," and the like are understood to exclude the present numbers; the terms "above", "below", "within" and the like are to be understood as including the number.

Although the embodiments have been described, once the basic inventive concept is obtained, other variations and modifications of these embodiments can be made by those skilled in the art, so that the above embodiments are only examples of the present invention, and not intended to limit the scope of the present invention, and all equivalent structures or equivalent processes using the contents of the present specification and drawings, or any other related technical fields, which are directly or indirectly applied thereto, are included in the scope of the present invention.

Claims

1. A bridge frame is characterized by comprising at least two bases and a plurality of fixing parts, wherein the adjacent bases are connected through the fixing parts, each fixing part comprises a connecting end and a fixed end, the connecting ends and the fixed ends are respectively arranged on the adjacent bases, a plurality of connecting pieces and telescopic supports are arranged between the adjacent bases, the connecting pieces are connected in a telescopic manner side by side through the telescopic supports, the adjacent connecting pieces are mutually attached and not connected, each telescopic support comprises a plurality of horizontal connecting rods and a plurality of vertical connecting rods, the horizontal connecting rods and the connecting pieces are sequentially connected through damping to form a horizontal bending part, the horizontal connecting rods at the head end and the tail end are respectively detachably arranged on the two adjacent bases, or the vertical connecting rods and the connecting pieces are sequentially connected through damping to form a vertical bending part, and the vertical connecting rods at the head end and the tail end are respectively detachably arranged on the two adjacent bases, the link includes first fixed box and connecting rod, the embedded first spring that is equipped with of first fixed box, the one end of connecting rod inlay establish in first fixed box and with first spring fixed connection, the other end of connecting rod runs through along the direction of height of first fixed box and is equipped with the through-hole, the stiff end includes the fixed box of second and dead lever, the fixed box of second inlays and is equipped with the second spring, the one end of dead lever inlays to be established in the fixed box of second and with second spring fixed connection, the other end of dead lever sets up and is equipped with an Contraband type connector towards the connecting rod direction, the opening of connector sets up towards the connecting rod, the connecting rod inlays to be established in the link, the connector runs through along the direction of height of connecting rod and is provided with the rotation hole and is linked together with the through-hole, it is equipped with the dwang to.

2. The bridge frame of claim 1, wherein the base and the connecting members are U-shaped, the horizontal connecting rods and the vertical connecting rods are rotatably disposed on two inner side walls of the connecting members and the base, respectively, the horizontal plane of the horizontal connecting rods is parallel to the horizontal plane of the bottom of the connecting members and the base and is located on the top of the connecting members and the base, and the horizontal plane of the vertical connecting rods is parallel to the vertical plane of the side walls of the connecting members and the base and is located on the bottom of the connecting members and the base.

3. The bridge frame of claim 2, wherein the connecting member and the inner sidewall of the top of the base are provided with a horizontal rotating connecting plate protruding along a width direction of the bottom of the base, the horizontal rotating connecting plate of the connecting member and the horizontal rotating connecting plate of the base are at the same horizontal plane, the horizontal connecting rod is rotatably disposed on the horizontal rotating connecting plate, the bottom of the connecting member and the bottom of the base are provided with a vertical rotating connecting plate protruding along a height direction of the bottom of the base, the vertical connecting rod is rotatably disposed on the vertical rotating connecting plate, the horizontal rotating connecting plate and the vertical rotating connecting plate of the base are both provided with a knob, the knob is fixedly mounted on the horizontal rotating connecting plate and the vertical rotating connecting plate through threads, and the horizontal connecting rod and the vertical connecting rod are rotatably connected with the.

4. The bridge frame as claimed in claim 2, wherein the number of the fixing members is three, three of the connecting ends are respectively disposed on the inner bottom surface and two outer vertical surfaces of a base, the connecting ends are parallel to the long sides of the base, three of the fixing ends are respectively disposed on the inner bottom surface and two outer vertical surfaces of another base, the fixing ends are parallel to the long sides of the base, the positions of the three fixing ends respectively correspond to the positions of the three connecting ends, and the three connecting ends and the connecting surfaces of the three fixing ends are located on the same vertical surface.

5. The bridge frame of claim 4, wherein a pull plate is protruded from the top end of the rotation rod, the pull plate and the top end of the connection port are provided with a third spring, the bottom end of the rotation rod and the bottom end of the connection port are in the same horizontal plane in a natural state, and the bottom end of the rotation rod is located above the through hole and not located in the through hole in a stretching state.

6. The bridge frame of claim 4, wherein the through holes of the base side wall tie bars are perpendicular to the bottom surface of the base bottom surface.

7. The bridge frame of claim 2, further comprising an upper cover, wherein the middle end of the upper cover is provided with a flexible part, the flexible part is a wave-shaped elastic rubber, two long sides of the upper cover extend downwards along the thickness of the upper cover and are provided with convex plates, and the distance between the convex plates is matched with the width of the notch of the base.

8. The bridge frame of claim 7, wherein the sidewalls of the base are provided with fixing blocks protruding along the length direction of the bottom of the groove, and the side surfaces of the top cover are provided with hanging buckles, and the hanging buckles are arranged on the fixing blocks.

9. The bridge frame of claim 2, wherein the two symmetrical sidewalls of the base are provided with connecting holes along the caliber direction of the slot, and the bottom of the base is provided with a support platform protruding upwards along the height of the sidewalls.