CN112376441A - Installation method of road and bridge extension construction cross-line protection facility - Google Patents
Installation method of road and bridge extension construction cross-line protection facility Download PDFInfo
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- CN112376441A CN112376441A CN202011155840.7A CN202011155840A CN112376441A CN 112376441 A CN112376441 A CN 112376441A CN 202011155840 A CN202011155840 A CN 202011155840A CN 112376441 A CN112376441 A CN 112376441A
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D22/00—Methods or apparatus for repairing or strengthening existing bridges ; Methods or apparatus for dismantling bridges
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Abstract
The invention discloses an installation method of a road and bridge extension construction cross-line protection facility, wherein the protection facility is a guard rail, the guard rail comprises a guard bar and a protection net, and the installation method comprises the following installation steps: the method comprises the following steps of placing a barrier rod, and installing a protective guard on a stabilizing device, wherein the stabilizing device comprises a bottom plate, universal wheels are installed at the bottom of the bottom plate, a balancing weight is installed on one side of the bottom plate, a handle is installed on the bottom plate, supporting plates are symmetrically installed on the bottom plate, supporting bars are connected between the supporting plates, a plurality of sliding sleeves are sleeved on the supporting bars, connecting bars are installed on one sides of the sliding sleeves, installation blocks are installed on the connecting bars, and vertical bars are installed on the installation blocks. The blocking rod is installed on the clamping strips on the stabilizing device, the mounting holes of the mounting plates on the blocking rod are inserted into the bolts of the expansion bolts installed on the edge of the bridge deck in a mode of pushing the stabilizing device, the nuts on the expansion bolts are locked, the blocking rod does not need to be transversely held for a long time in the whole process of installing the blocking rod, and labor is saved in installation and potential safety hazards are effectively reduced.
Description
Technical Field
The invention belongs to the technical field of road and bridge extension construction, and particularly relates to an installation method of a road and bridge extension construction cross-line protection facility.
Background
In the reconstruction construction of crossing over the road sections such as railways and bridges, the road and bridge need to be expanded. In the prior art, an expanded road and bridge is constructed by adopting a cage which is built by binding reinforcing steel bars as a supporting framework and then pouring cement concrete into the cage. However, in the process of building the cage, the constructors are positioned on the road and bridge below, on one hand, the constructors are unsafe, on the other hand, potential safety hazards are generated to passing people and vehicles below, in the process of pouring, material slag such as cement slurry and the like can fall down, the potential safety hazards are generated to the personnel below, and even the route below needs to be closed for a long time. Therefore, protective guards are required to be transversely arranged at the edges of the road and bridge to prevent falling objects on the bridge floor from falling.
The existing protective guard is formed by combining a blocking rod and a protective net, the protective net is tied on a railing by adopting iron wires, the bottom of the blocking rod is provided with a mounting plate, the mounting plate is provided with through holes, when in mounting, the edge of a bridge deck is drilled firstly, then, an expansion bolt is driven into the drilled hole, finally, a through hole on a mounting plate arranged at the bottom of the barrier rod is sleeved in a way of corresponding to the bolt on the expansion bolt, finally, a nut of the expansion bolt is used for locking the bolt on the expansion bolt, the installation of the barrier rod is completed, finally, a protective net is laid on the barrier rod, and the contact position of the protective net and the barrier rod is bound together by an iron wire, the heavy objects on the bridge floor can be prevented from falling to the ground through the protective net fixed on the barrier rods, however, in the process of installing the barrier rods, workers need to hold the barrier rods to be pre-fixed on the edge of the bridge floor, the blocking rod needs to be transversely held for a long time, so that the device is labor-consuming and has great potential safety hazards.
Disclosure of Invention
The invention aims to provide an installation method of a cross-line protection facility for road and bridge extension construction, and the installation method is used for solving the problem that a fixed barrier in the prior art has great potential safety hazard.
In order to achieve the purpose, the invention provides the following technical scheme: the method for installing the cross-line protection facility for road and bridge extension construction comprises a protective guard, wherein the protective guard comprises a guard bar and a protective net, and the method comprises the following installation steps of:
the method comprises the following steps: the method comprises the following steps of: placing the blocking rods on the side of the bridge deck;
step two: the method comprises the following steps that a blocking rod is installed on a stabilizing device, the stabilizing device comprises a bottom plate, universal wheels are installed at the bottom of the bottom plate, a balancing weight is installed on one side of the bottom plate, a handle is installed on the bottom plate, supporting plates are symmetrically installed on the bottom plate, supporting bars are connected between the supporting plates, a plurality of sliding sleeves are sleeved on the supporting bars, a connecting bar is installed on one side of each sliding sleeve, an installation block is installed on the connecting bar, a vertical bar is installed on the installation block, at least two supporting bars are installed at the bottom of the vertical bar, one supporting bar is connected with the vertical bar, clamping strips are connected with the bottoms of the supporting bars, adjacent clamping strips are mutually attached, and a clamping groove is formed in the; the method comprises the following specific steps: inserting a railing of the protective guard into a clamping groove arranged on the binding surface of the clamping strip;
step three: installing a protective guard, which comprises the following specific steps: and pushing the stabilizing device until the mounting holes in the mounting plate arranged at the bottom of the barrier rod are inserted into the expansion bolts installed at the bridge edge, locking the nuts on the expansion bolts, and finally mounting a protective net on the protective barrier.
Preferably, the supporting bar is of a square bar structure, and the sliding sleeve is of a square sleeve structure.
Preferably, one side of the sliding sleeve is provided with a first threaded hole, and a first bolt is connected to the first threaded hole in an internal thread mode.
Preferably, the mounting block is internally and transversely provided with a first sliding hole and the connecting rod penetrates through the first sliding hole, one side of the first sliding hole is provided with a second threaded hole, and the second threaded hole is in threaded connection with a second bolt.
Preferably, the position that is close to first slide opening in the installation piece vertically sets up the third slide opening, and the third slide opening interlude has found the thick stick, and one side of third slide opening is equipped with the movable hole, and the interlude has first bolt in the movable hole, and one side of founding the thick stick is followed in vertical a plurality of constant head tanks and the first bolt that are equipped with inserts the constant head tank, and the head and the installation piece of first bolt are connected respectively to the both ends that are equipped with spring and spring on the first bolt.
Preferably, the supporting bars are of U-shaped bar structures, the clamping bars are of square block structures, and the clamping grooves are of semicircular groove structures.
Preferably, among all the support bars arranged at the bottom of the vertical rod, at least one support bar is provided with at least two sliding rods on one side, and the rest support bars are provided with through holes, and the sliding rods penetrate through the through holes and are connected with limiting plates.
Preferably, one side of the supporting bar is provided with a connecting piece which is staggered up and down, the connecting piece is provided with a through hole, and a second bolt is inserted in the through hole.
Compared with the prior art, the invention has the beneficial effects that:
according to the mounting method of the road and bridge extension construction cross line protection facility, the barrier rod is mounted on the clamping strips on the stabilizing device, the mounting holes of the mounting plates on the barrier rod are inserted into the bolts of the expansion bolts mounted at the edge of the bridge floor in a mode of pushing the stabilizing device, and finally the nuts on the expansion bolts are locked.
The stabilizing device provided by the invention is convenient for adjusting the distance between the vertical bars at the front and rear positions, so that after three bars are installed on the stabilizing device, the stabilizing device is pushed, the installation holes on the installation plates of the bars are simultaneously inserted with the bolts of expansion bolts, thereby the three bars can be stably held at one time, the left and right positions of the clamping strips can be conveniently adjusted, the distance between the clamping strips and the edge of the bridge floor can be considered according to the length of the arm of a worker and the distance between the stabilizing device and the edge of the bridge floor when the stabilizing device is pushed, the height of the clamping strips can be conveniently adjusted, and the positions of the clamping strips can be adjusted according to the installation height requirements of different.
Drawings
FIG. 1 is a schematic front view of a stabilization device according to the present invention;
FIG. 2 is a schematic view in partial cutaway of FIG. 1;
FIG. 3 is a schematic top view of FIG. 1;
FIG. 4 is a schematic view in partial cutaway of FIG. 3;
FIG. 5 is an enlarged view of a portion a of FIG. 2;
FIG. 6 is an enlarged view of the structure at b of FIG. 2;
FIG. 7 is an enlarged view of the structure at c of FIG. 2;
FIG. 8 is an enlarged view of the structure at d of FIG. 4;
FIG. 9 is a schematic view of a clip strip connection of the present invention.
In the figure: the universal wheel comprises a base plate 1, universal wheels 2, a balancing weight 3, a handle 4, a supporting plate 5, a supporting rod 6, a sliding sleeve 7, a first threaded hole 8, a first bolt 9, a connecting rod 10, an installation block 11, a first sliding hole 12, a second threaded hole 13, a second bolt 14, a second sliding hole 15, a vertical rod 16, a movable hole 17, a first bolt 18, a positioning groove 19, a spring 20, a supporting strip 21, a clamping strip 22, a clamping groove 23, a sliding rod 24, a punched hole 25, a limiting plate 26, a connecting plate 27, a through hole 28 and a second bolt 29.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.
Referring to fig. 1, fig. 2, fig. 3, fig. 4, fig. 5, fig. 6, fig. 7, fig. 8, and fig. 9, a method for installing a road bridge extension construction cross line protection facility, where the protection facility is a guard rail, the guard rail includes a rail and a protection net, and the method includes the following steps:
the method comprises the following steps: the method comprises the following steps of: put the rail at the bridge floor avris, rail mounted position puts according to rail erection space, and the purpose of doing so is for conveniently taking the rail and be used for installing on stabilising arrangement.
Before the barrier rods are placed, the edge of the bridge deck is used for percussion drilling holes according to the preset barrier rod intervals, expansion bolts are driven into the holes, and washers and nuts of the expansion bolts are detached from the screws.
Step two: the method comprises the following steps of (1) installing a barrier on a stabilizing device: the rail of the protective fence is arranged on a stabilizing device, wherein the stabilizing device comprises a bottom plate 1, universal wheels 2 are uniformly fixed on the outer edge of the bottom plate 1 by screws, the type of the universal wheels 2 is YS-CZ12, the universal wheels 2 arranged below the bottom plate 1 roll on the ground through rollers of the universal wheels 2, so that a handle 4 can be conveniently pushed to move the stabilizing device, a balancing weight 3 is welded on the left side of the upper surface of the bottom plate 1, the balancing weight 3 is made of manganese steel, the size of the balancing weight 3 is set, the condition that the whole stabilizing device cannot incline rightwards when four bars are loaded on the right side of the stabilizing device is met, the handle 4 is welded on the front side and the rear side of the upper surface of the bottom plate 1, the handle 4 is of a U-shaped bar structure, support plates 5 are symmetrically welded on the front side and the rear side of the upper surface of the, the length of the supporting bar 6 is 4 meters, the sliding sleeves 7 are of a square sleeve structure, three sliding sleeves 7 are slidably sleeved on the supporting bar 6, the sliding sleeves 7 cannot rotate on the supporting bar 6, the sliding sleeves 7 can move back and forth to facilitate adjustment of the front and rear positions of the clamping strips 22, a first threaded hole 8 is formed in the left side of each sliding sleeve 7, a first bolt 9 is connected to the inner thread of each first threaded hole 8, when the first bolt 9 is locked, each first bolt 9 presses the supporting bar 6 to limit the sliding sleeves 7 to move back and forth on the supporting bar 6, a connecting bar 10 is welded on the right side of each sliding sleeve 7, a square head is further arranged at the left end of each connecting bar 10 to limit the mounting block 11 to be separated from the connecting bar 10 leftwards, a first sliding hole 12 is transversely formed in the inner portion of the rear side of each mounting block 11, each connecting bar 10 penetrates through the corresponding first sliding hole 12 in a sliding mode, each first sliding hole 12 is of a square hole structure, each connecting bar 10 is of a, the installation block 11 can move left and right on the connecting rod 10, the left and right positions of the clamping strips 22 are conveniently adjusted, a second threaded hole 13 is formed in the back of the first sliding hole 12, a second bolt 14 is in threaded connection with the second threaded hole 13, when the second threaded hole 13 is locked by the second bolt 14, the second bolt 14 presses the connecting rod 10 to limit the installation block 11 to move left and right on the connecting rod 10, a third sliding hole 15 is longitudinally formed in the installation block 11 and located in the front of the first sliding hole 12, the third sliding hole 15 is of a square hole structure, a vertical rod 16 is slidably inserted into the third sliding hole 15, a square head is arranged at the top of the vertical rod 16 and can limit the vertical rod 16 to be downwards separated from the third sliding hole 15, the vertical rod 16 is of a square rod structure, the vertical rod 16 cannot rotate 15 in the third sliding hole, a movable hole 17 is formed in the left side of the third sliding hole 15, a first bolt 18 is slidably inserted into the movable hole 17, the vertical rod 16 is two meters in length, positioning grooves 19 and a first bolt 18 are uniformly formed in the upper portion of the left side of the vertical In the positioning groove 19, the height of the positioning groove 19 is set according to different rail mounting heights, a spring 20 is sleeved on the first bolt 18, the head and the mounting block 11 of the first bolt 18 are respectively welded at two ends of the spring 20, the first bolt 18 is limited from being separated from the positioning groove 19 through elastic support of the spring 20, when the first bolt 18 is inserted into the positioning groove 19, the vertical rod 16 is limited to move up and down in the third sliding hole 15, two support bars 21 are installed at the bottom of the vertical rod 16, the bottom of the vertical rod 16 is welded with the bottom of the vertical rod 16 at the middle side of the top of one support bar 21 at the back, clamping strips 22 are welded at two sides of the bottom of the support bar 21, adjacent clamping strips 22 on the two support bars 21 are mutually attached, clamping grooves 23 are arranged on the attaching surfaces of the clamping strips 22, when the clamping strips 22 are mutually attached, the clamping grooves 23 are mutually attached to form round holes, the clamping grooves 23, the holding strip 22 is of a square block structure, the clamping groove 23 is of a semicircular groove structure, two sliding rods 24 are symmetrically welded on the left side and the right side of the front face of the back support strip 21, through holes 25 are formed in the left side and the right side of the front support strip 21, the sliding rods 24 penetrate through the holes 25 in a sliding mode and are welded with limiting plates 26, the front support strip 21 is enabled to move back and forth stably through the sliding fit of the sliding rods 24 and the holes 25 arranged on the left side and the right side, through the arrangement of the limiting plates 26, the front support strip 21 is limited to be separated from the sliding rods 24, connecting pieces 27 are welded on the left side of the support strip 21, are staggered up and down and are mutually attached, the connecting pieces 27 are of a square piece structure, through holes 28 are arranged on the connecting pieces 27, the through holes 28 are of round hole structures, second bolts 29, the barrier is limited to be separated from the clamping groove 23, when the barrier is installed on the clamping strips 22, the second bolt 29 is firstly pulled out of the through hole 28, then the supporting bar 21 is pulled forwards, the clamping strips 22 which are mutually attached before are separated, the installing plate of the barrier is leftwards, then the barrier is inserted into the clamping groove 23 on the clamping strips 22, the clamping strips 22 are mutually attached, the through holes 28 on the upper side and the lower side correspond to each other at the moment, the second bolt 29 penetrates into the through hole 28, the barrier can be installed on the stabilizing device, when the stabilizing device is used, the barrier is firstly pushed to the side of the bridge deck, and then the barrier is installed.
Step three: installing a protective guard, pushing a stabilizing device at the side of the bridge deck, adjusting the height of a clamping strip 22, pulling a first bolt 18 leftwards, stretching a spring 20, separating the first bolt 18 from a positioning groove 19, moving a vertical rod 16 downwards until the height of the clamping strip 22 corresponds to the installation position of an expansion bolt at the edge of the bridge deck, inserting the first bolt 18 into the corresponding positioning groove 19 so as to finish the clamping of the clamping strip 22 on the barrier rod, adjusting the front position, the rear position, the left position and the right position of the clamping strip 22, finishing the operation when the stabilizing device is not pushed to the side of the bridge deck, inserting an installation hole on an installation plate arranged at the bottom of the barrier rod into the expansion bolt installed at the bridge edge, locking a nut on the expansion bolt, finally installing a protective net on the protective guard, wherein the protective net is a nylon net, the width of the protective net is the same as the length of the barrier rod, the length of each section is 10 meters, firstly pulling, and finally, uniformly binding 5 iron wire rings along the direction of the barrier rod at the contact position of the protective net and the barrier rod by using iron wires.
The invention provides a method for installing a cross line protection facility for road and bridge extension construction, which comprises the steps of pulling out a second bolt 29 from a through hole 28, then pulling a support bar 21 forwards, separating clamping strips 22 which are attached to each other, leftwards placing a mounting plate of a barrier rod, then inserting the barrier rod into a clamping groove 23 on the clamping strips 22, attaching the clamping strips 22 to each other, enabling the through holes 28 at the upper side and the lower side to correspond to each other, penetrating the second bolt 29 into the through holes 28, installing the barrier rod on a stabilizing device, detaching the clamping strips 22 after the barrier rod is stably installed at the edge of a bridge floor, pulling a first bolt 18 upwards and leftwards to enable the first bolt 18 to be separated from a positioning groove 19, pulling up a lever 16 until the clamping strips 22 are completely separated from the barrier rod, pushing the stabilizing device at the side of the bridge floor, inserting an installation hole on a mounting plate arranged at the bottom of the barrier rod into an expansion bolt installed at the edge, locking a nut on the expansion bolt, need not to transversely take for a long time and put the rail, the installation is laborsaving and effectively reduces the potential safety hazard.
The invention relates to a stabilizing device, wherein a balancing weight 3 is arranged in size, so that when four bars are loaded on the right side of the stabilizing device, the whole stabilizing device cannot incline rightwards, the front and back positions of a holding strip 22 can be conveniently adjusted by moving a sliding sleeve 7 forwards and backwards, when a first bolt 9 is locked, the first bolt 9 presses a supporting rod 6 to limit the front and back movement of the sliding sleeve 7 on the supporting rod 6, so that the distance of vertical rods 16 at the front and back positions can be adjusted, after the three bars are installed on the stabilizing device, the bolts of expansion bolts are simultaneously inserted into installation holes of the mounting plates of the bars by pushing the stabilizing device, so that the three bars can be stably held at one time, an installation block 11 can move leftwards and rightwards on a connecting rod 10 to conveniently adjust the left and right positions of the holding strip 22, when a second bolt 14 locks a second threaded hole 13, a second bolt 14 presses the connecting rod 10 to limit the left and right movement, therefore, the distance between the clamping strips 22 and the edge of the bridge deck can be set according to the length of the arm of a worker and the pushing distance between the stabilizing device and the edge of the bridge deck, the vertical rod 16 can move up and down in the third sliding hole 15, the height of the clamping strips 22 can be conveniently adjusted, the positioning grooves 19 are arranged according to different barrier installation heights, the first bolt 18 is limited to be separated from the positioning grooves 19 through the elastic support of the springs 20, when the first bolt 18 is inserted into the positioning grooves 19, the vertical rod 16 is limited to move up and down in the third sliding hole 15, and therefore the positions of the clamping strips 22 can be adjusted according to different barrier installation height requirements.
Claims (8)
1. The method for installing the cross-line protection facilities for road and bridge extension construction comprises guard railings, wherein the guard railings comprise guard bars and protection nets, and the method is characterized by comprising the following installation steps of:
the method comprises the following steps: the method comprises the following steps of: placing the blocking rods on the side of the bridge deck;
step two: install the rail guard on stabilising arrangement, stabilising arrangement includes bottom plate (1), and universal wheel (2) have been installed to the bottom of bottom plate (1), balancing weight (3) have been installed to one side of bottom plate (1), bottom plate (1) facial make-up is equipped with handle (4), backup pad (5) have been installed to the symmetry on bottom plate (1), be connected with between backup pad (5) and support thick stick (6), the cover is equipped with a plurality of sliding sleeves (7) on support thick stick (6), connecting rod (10) have been installed to one side of sliding sleeve (7), connecting rod (10) facial make-up is equipped with installation piece (11), installation piece (11) facial make-up is equipped with upright thick stick (16), upright thick stick (16) is connected to at least two support bars (21) and one of them support bar (21) have been installed to the bottom of upright thick stick (16), the bottom of support bar (21) is connected with holding strip (22) and adjacent holding strip (22, the binding surface of the holding strip (22) is provided with a clamping groove (23); the method comprises the following specific steps: firstly, inserting a railing of the protective guard into a clamping groove arranged on the binding surface of the clamping strip; step three: installing a protective guard, which comprises the following specific steps: and pushing the stabilizing device until the mounting holes in the mounting plate arranged at the bottom of the barrier rod are inserted into the expansion bolts installed at the bridge edge, locking the nuts on the expansion bolts, and finally mounting a protective net on the protective barrier.
2. The method for installing the road and bridge extension construction cross-line protection facility according to claim 1, wherein the method comprises the following steps: the supporting bar (6) is of a square bar structure, and the sliding sleeve (7) is of a square sleeve structure.
3. The method for installing the road and bridge extension construction cross-line protection facility according to claim 2, wherein the method comprises the following steps: one side of the sliding sleeve (7) is provided with a first threaded hole (8), and the first threaded hole (8) is connected with a first bolt (9) in an internal thread mode.
4. The method for installing the road and bridge extension construction cross-line protection facility according to claim 1, wherein the method comprises the following steps: the mounting block (11) is internally and transversely provided with a first sliding hole (12) and a connecting rod (10) penetrates through the first sliding hole (12), one side of the first sliding hole (12) is provided with a second threaded hole (13) and the second threaded hole (13) is in threaded connection with a second bolt (14).
5. The method for installing the road and bridge extension construction cross-line protection facility according to claim 4, wherein the method comprises the following steps: the utility model discloses a bolt, including installation piece (11), be close to the position of first slide opening (12) in installation piece (11) and vertically set up third slide opening (15), third slide opening (15) interlude has found thick stick (16), one side of third slide opening (15) is equipped with movable hole (17), first bolt (18) have been interlude in movable hole (17), one side of standing thick stick (16) is along vertical a plurality of constant head tanks (19) and first bolt (18) insert in constant head tank (19), the head and the installation piece (11) of first bolt (18) are connected respectively to the both ends that the cover was equipped with spring (20) and spring (20) on first bolt (18).
6. The method for installing the road and bridge extension construction cross-line protection facility according to claim 1, wherein the method comprises the following steps: the supporting bars (21) are of U-shaped rod structures, the clamping bars (22) are of square block structures, and the clamping grooves (23) are of semicircular groove structures.
7. The method for installing the road and bridge extension construction cross-line protection facility according to claim 5, wherein the method comprises the following steps: at least two sliding rods (24) are arranged on one surface of at least one support strip (21) in all the support strips (21) arranged at the bottom of the upright rod (16), through holes (25) are formed in the other support strips (21), and the sliding rods (24) penetrate through the through holes (25) and are connected with a limiting plate (26).
8. The method for installing the road and bridge extension construction cross-line protection facility according to claim 7, wherein the method comprises the following steps: one side of the supporting strip (21) is provided with a connecting piece (27), the connecting piece (27) is staggered up and down, the connecting piece (27) is provided with a through hole (28), and a second bolt (29) is inserted into the through hole (28).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011155840.7A CN112376441A (en) | 2020-10-26 | 2020-10-26 | Installation method of road and bridge extension construction cross-line protection facility |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011155840.7A CN112376441A (en) | 2020-10-26 | 2020-10-26 | Installation method of road and bridge extension construction cross-line protection facility |
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| CN112376441A true CN112376441A (en) | 2021-02-19 |
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| CN202011155840.7A Pending CN112376441A (en) | 2020-10-26 | 2020-10-26 | Installation method of road and bridge extension construction cross-line protection facility |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100856697B1 (en) * | 2008-04-28 | 2008-09-04 | 주식회사 아워브레인 | Safety diagnosis apparatus for bridge railing |
| CN207878285U (en) * | 2018-01-26 | 2018-09-18 | 南京先行交通工程设计有限责任公司 | A kind of formwork of bridge rail integral disassembly, assembly trolley |
| CN209010928U (en) * | 2018-10-29 | 2019-06-21 | 广东石川重工有限公司 | A kind of lead screw positioning inserted pin mechanism for pavement cutting machine |
| CN209662520U (en) * | 2019-03-08 | 2019-11-22 | 湖南信息职业技术学院 | A kind of college sports parallel bars training device |
| CN211617536U (en) * | 2020-01-20 | 2020-10-02 | 泉州市路明达交通设施有限公司 | Special vehicle for mounting wave-shaped guardrail plate |
-
2020
- 2020-10-26 CN CN202011155840.7A patent/CN112376441A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100856697B1 (en) * | 2008-04-28 | 2008-09-04 | 주식회사 아워브레인 | Safety diagnosis apparatus for bridge railing |
| CN207878285U (en) * | 2018-01-26 | 2018-09-18 | 南京先行交通工程设计有限责任公司 | A kind of formwork of bridge rail integral disassembly, assembly trolley |
| CN209010928U (en) * | 2018-10-29 | 2019-06-21 | 广东石川重工有限公司 | A kind of lead screw positioning inserted pin mechanism for pavement cutting machine |
| CN209662520U (en) * | 2019-03-08 | 2019-11-22 | 湖南信息职业技术学院 | A kind of college sports parallel bars training device |
| CN211617536U (en) * | 2020-01-20 | 2020-10-02 | 泉州市路明达交通设施有限公司 | Special vehicle for mounting wave-shaped guardrail plate |
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Application publication date: 20210219 |