CN214422082U - Hoisting device of culvert pipe for municipal construction - Google Patents
Hoisting device of culvert pipe for municipal construction Download PDFInfo
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- CN214422082U CN214422082U CN202120646897.0U CN202120646897U CN214422082U CN 214422082 U CN214422082 U CN 214422082U CN 202120646897 U CN202120646897 U CN 202120646897U CN 214422082 U CN214422082 U CN 214422082U
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- culvert pipe
- clamping jaw
- plate
- handling
- municipal construction
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- 230000000712 assembly Effects 0.000 claims description 7
- 238000000429 assembly Methods 0.000 claims description 7
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 3
- 229910000831 Steel Inorganic materials 0.000 description 6
- 239000010959 steel Substances 0.000 description 6
- 230000033001 locomotion Effects 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- 230000000903 blocking effect Effects 0.000 description 2
- 239000004568 cement Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 239000011150 reinforced concrete Substances 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
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Abstract
The utility model relates to a hoist device of culvert pipe for municipal construction belongs to the field of municipal construction, and it includes handling subassembly and clamping jaw subassembly, the handling subassembly includes a plurality of hoist cables, lifting hook and handling board, each the one end and the handling board fixed connection of hoist cable, each the other end and the handling board fixed connection of hoist cable, the clamping jaw subassembly is provided with two sets ofly, be provided with on the handling board and adjust the structure, each the clamping jaw subassembly is through adjusting relative fixed connection between structure and the handling board, it is used for adjusting the distance between two sets of clamping jaw subassemblies, each the clamping jaw subassembly is used for with culvert pipe end connection fixed. The handling that this application has the culvert pipe is more steady, the difficult effect that drops of clamping jaw subassembly.
Description
Technical Field
The application relates to the field of municipal construction, especially, relate to a hoist device of culvert pipe for municipal construction.
Background
The culvert pipe is a pipeline buried under the ground surface, is formed by casting reinforced concrete and is commonly called a cement pipe. The small culvert pipe is also made of metal materials. A diversion pipeline and a water delivery pipeline are arranged below the full-section cofferdam, at present, water supply and drainage pipelines in most cities in China are provided with multipurpose cement pipes as culvert pipes, and the culvert pipes are heavy in weight and need to be hoisted.
Relevant bulletin number is CN 208200116U's Chinese utility model patent, it discloses a culvert pipe lifting device for municipal construction, including U shaped steel board, U shaped steel board is provided with two, L shaped steel board has all been welded to the both sides of diaphragm on the U shaped steel board, the lewis hole has all been seted up on the riser of L shaped steel board, all be connected with first the knot of breaking out on the steel ring, equal fixedly connected with hank rope on the first knot of breaking out, the top of culvert pipe body is provided with metal casing, metal casing's outside welding has four arc go-between, the one end that first knot of breaking out was kept away from to the hank rope all is connected with the second and breaks out, the metal casing is inserted and is equipped with solid cylinder, solid cylinder's outside lower extreme welding has four limiting plates, the welding of solid cylinder's upper end has the arc to hang fortune ring.
In view of the above-mentioned related technologies, the inventor believes that the clamping jaws of the related hoisting equipment are clamped at the axial end of the culvert pipe, the culvert pipe is hoisted by obliquely tensioning the clamping jaws through the slings, and when the culvert pipe is hoisted, the hoisting is easy to be unstable due to the obliquely tensioned state between the slings and the clamping jaws, and the clamping jaws are easy to be separated from the end of the culvert pipe.
SUMMERY OF THE UTILITY MODEL
In order to improve the unstable handling of relevant lifting device, the easy problem that drops of clamping jaw, this application provides a hoisting device of culvert pipe for municipal construction.
The application provides a hoisting device of culvert pipe for municipal construction adopts following technical scheme:
the utility model provides a hoist device of culvert pipe for municipal construction, includes handling subassembly and clamping jaw subassembly, the handling subassembly includes a plurality of hoist cables, lifting hook and handling board, each the one end and the handling board fixed connection of hoist cable, each the other end and the handling board fixed connection of hoist cable, the clamping jaw subassembly is provided with two sets ofly, be provided with on the handling board and adjust the structure, each the clamping jaw subassembly is through adjusting relative fixed connection between structure and the handling board, adjust the structure and be used for adjusting the distance between two sets of clamping jaw subassemblies, each the clamping jaw subassembly is used for with culvert pipe end connection fixed.
Through adopting above-mentioned technical scheme, when the staff uses this hoist device to carry out the handling of culvert pipe, earlier be connected the lifting hook with equipment of lifting by crane, remove each clamping jaw subassembly to the tip of waiting to lift by crane the culvert pipe, later, the staff is through adjusting the structure, and the distance between two clamping jaw subassemblies of adjustment is the same with the length of culvert pipe for clamping jaw subassembly can with the end connection of culvert pipe, later, can carry out the operation of lifting by crane of culvert pipe. The hoist cable is connected with the handling board earlier, and the oblique pulling force is applyed to the handling board to the hoist cable, and through adjusting the structure, the handling board is connected with clamping jaw assembly, applys vertical pulling force to clamping jaw assembly, then is difficult for producing horizontally component to the culvert pipe for the handling of culvert pipe is more steady, and clamping jaw assembly is difficult for droing.
Optionally, adjust the structure and include adjusting screw, two coupling nut and dwang, the groove of sliding has been seted up on the handling board is close to the one side of clamping jaw subassembly, each coupling nut sliding connection is in the inslot that slides, adjusting screw is located the inslot that slides, adjusting screw rotates with the handling board to be connected, each coupling nut and adjusting screw threaded connection, the screw thread of adjusting screw center both sides is rotated to opposite, the handling board is worn out and is connected with the dwang to the axial one end of adjusting screw.
Through adopting above-mentioned technical scheme, the staff rotates adjusting screw through the dwang, and adjusting screw drives two coupling nut or back of the body motion in opposite directions, and coupling nut drives two clamping jaw subassemblies in opposite directions or back of the body motion then to realize the adjustment of distance between two clamping jaw subassemblies, be convenient for on the one hand the jack catch be connected between and the culvert pipe, on the other hand also ensures this hoist device's good suitability.
Optionally, the adjusting screw is worn out and has been seted up the perforation on the global of the one end of handling board, the dwang slides and wears to locate adjusting screw's perforation in, the axial both ends of dwang are fixed with the check ball, the diameter of check ball is greater than fenestrate diameter.
By adopting the technical scheme, the worker rotates the adjusting screw rod through the rotating rod which is connected in the through hole of the adjusting screw rod in a sliding manner, so that the worker can adjust the relative position between the rotating rod and the adjusting screw rod, the force arm of the torque applied to the adjusting screw rod is conveniently adjusted, and the convenience for rotating the adjusting screw rod is improved; due to the arrangement of the blocking ball, the rotating rod is not easy to slide from the through hole.
Optionally, each clamping jaw assembly includes punch holder, lower plate, connecting plate and connecting rod, the one end and the corresponding coupling nut fixed connection of connecting rod, the other end and the punch holder fixed connection of connecting rod, the connecting plate is located between punch holder and the lower plate, punch holder and lower plate all with connecting plate fixed connection, be formed with the centre gripping notch between punch holder, connecting plate and the lower plate, the perisporium of culvert pipe tip stretches into in the centre gripping notch.
Through adopting above-mentioned technical scheme, when carrying out the handling of culvert pipe, through the distance between the two sets of clamping jaw subassemblies of regulation structure adjustment for the perisporium of culvert pipe tip stretches into in the centre gripping groove, and when this hoist device was lifted by crane afterwards, the inner wall butt of lower plate and culvert pipe hoisted the culvert pipe then, easy operation, the centre gripping is convenient.
Optionally, one end, far away from the connecting nut, of the connecting rod is connected with the middle of the upper clamp plate, two sets of clamping structures are arranged on the upper clamp plate, the two sets of clamping structures are symmetrically arranged on two sides of the connecting rod, and the upper clamp plate is fixedly connected with the culvert pipe through the clamping structures.
By adopting the technical scheme, the connecting rod is connected with the middle part of the upper clamping plate, so that the stress is more balanced and uniform when the culvert pipe is lifted; two sets of clamping structure symmetries set up in the connecting plate both sides, improve the stability of being connected between clamping jaw subassembly and the culvert pipe.
Optionally, each press from both sides tight structure and include the fitting pin, clamp plate and guide bar, the fitting pin all wears to locate in the punch holder with the guide bar, fitting pin and punch holder threaded connection, the one end that the fitting pin is close to the lower plate rotates with the clamp plate to be connected, guide bar and punch holder sliding connection, the one end and the clamp plate fixed connection of guide bar.
By adopting the technical scheme, the clamping jaw assembly and the culvert pipe are locked and fixed by rotating the locking bolt to drive the clamping plate to move towards the culvert pipe until the clamping plate is abutted against the outer peripheral surface of the culvert pipe, so that the stability of connection between the clamping jaw assembly and the culvert pipe is improved; the guide rods play a role in guiding the movement of the clamping plates, so that good contact is kept between the clamping plates and the culvert pipes.
Optionally, the anti-skidding elastic pads are fixed on one surface of the lower clamping plate close to the upper clamping plate and one surface of the clamping plate close to the lower clamping plate.
Through adopting above-mentioned technical scheme for when clamping jaw assembly and culvert pipe are connected, lower plate and clamp plate homoenergetic keep laminating with the culvert pipe, improve clamping jaw assembly and to the tight fixed effect of clamp of culvert pipe.
Optionally, the lifting hook includes the coupler body and connects the lantern ring, it establishes in the pole portion of coupler body to connect the lantern ring rotation cover, two fender rings of pole portion fixedly connected with of coupler body, connect the lantern ring and be located between two fender rings, each the hoist cable is kept away from the one end and the adapter sleeve ring fixed connection of handling the board.
Through adopting above-mentioned technical scheme, connect the lantern ring and rotate with the coupler body and be connected for this hoist device is difficult for appearing around rolling between the hoist cable when the handling culvert pipe, improves the stability of handling. The retaining ring limits the connecting sleeve ring, so that the connecting sleeve is not easy to fall off.
In summary, the present application includes at least one of the following beneficial technical effects:
1. by arranging the lifting component and the clamping jaw component, the lifting of the culvert pipe is more stable, and the clamping jaw component is not easy to fall off;
2. by arranging the adjusting structure, the clamping jaws are conveniently connected with the culvert pipe, and the good applicability of the hoisting device is also ensured;
3. through setting up the tight structure of clamp, improve the stability of being connected between clamping jaw subassembly and the culvert pipe for the handling of culvert pipe is more steady.
Drawings
Fig. 1 is an overall structure schematic diagram of a hoisting device of a culvert pipe for municipal construction in the embodiment of the application when hoisting the culvert pipe.
Fig. 2 is a partial cutaway overall structure schematic diagram of a hoisting device of a culvert pipe for municipal construction in the embodiment of the application.
Figure 3 is a schematic view of the overall structure of a jaw assembly in an embodiment of the present application.
Description of reference numerals: 1. a hoisting component; 11. a sling; 12. a hook; 121. a hook body; 122. a baffle ring; 123. a connecting lantern ring; 13. hoisting the plates; 131. a sliding groove; 2. an adjustment structure; 21. adjusting the screw rod; 22. a connecting nut; 23. rotating the rod; 231. blocking the ball; 3. a jaw assembly; 31. a connecting rod; 32. an upper splint; 33. a connecting plate; 34. a lower splint; 341. an anti-slip resilient pad; 35. clamping the notch; 4. a clamping structure; 41. a locking bolt; 42. a guide bar; 43. and (5) clamping the plate.
Detailed Description
The present application is described in further detail below with reference to figures 1-3.
The embodiment of the application discloses hoist device of culvert pipe for municipal construction. Referring to fig. 1 and 2, the hoisting device of the culvert pipe for municipal construction comprises a hoisting assembly 1 and two groups of clamping jaw assemblies 3, wherein one end of the hoisting assembly 1 is connected with hoisting equipment such as a crane, and the other end of the hoisting assembly is connected with the two groups of clamping jaw assemblies 3. Be provided with between handling subassembly 1 and the clamping jaw subassembly 3 and adjust structure 2, adjust structure 2 and install on handling subassembly 1, each clamping jaw subassembly 3 is through adjusting relative fixed connection between structure 2 and the handling board 13, adjusts the distance that structure 2 is used for adjusting between two sets of clamping jaw subassemblies 3, and two sets of clamping jaw subassemblies 3 are used for fixed with the end connection of culvert pipe.
Referring to fig. 1 and 2, the hoist assembly 1 comprises a plurality of slings 11, a hook 12 and a hoist plate 13. In this embodiment, two slings 11 are provided. One end of each sling 11 is fixedly connected with the lifting plate 13 through a locking hook, and the other end of each sling 11 is connected with the lifting hook 12 through the locking hook. The connection points of the two suspension ropes 11 and the lifting plate 13 are symmetrically arranged relative to the center of gravity of the lifting plate 13. The hook 12 comprises a hook body 121, a connecting collar 123 and two retaining rings 122, the two retaining rings 122 are welded and fixed on a rod portion of the hook body 121, the connecting collar 123 is rotatably sleeved on the hook body 121, and the connecting collar 123 is located between the two retaining rings 122. One end of each sling 11 far away from the lifting plate 13 is fixedly connected with a connecting sleeve ring 123.
Referring to fig. 2, a sliding groove 131 is formed in one surface of the lifting plate 13 away from the lifting hook 12 along the length direction of the lifting plate. The adjusting structure 2 comprises an adjusting screw 21, a turning rod 23 and two coupling nuts 22. The two connecting nuts 22 are located in the sliding groove 131, the connecting nuts 22 are connected with the lifting plate 13 in a sliding mode through the sliding groove 131, and the cross section of the sliding groove 131 is in a T shape, so that the connecting nuts 22 are not prone to falling off when moving in the sliding groove 131. Adjusting screw 21 is located sliding groove 131, and adjusting screw 21 rotates with handling board 13 and is connected, each coupling nut 22 and adjusting screw 21 threaded connection, and the screw thread of adjusting screw 21 center both sides is revolved to opposite to when adjusting screw 21 rotates, drive two coupling nut 22 and move in opposite directions or back to back, realize the adjustment of distance between two clamping jaw assemblies 3 then.
Referring to fig. 2, the axial one end of adjusting screw 21 is worn out handling board 13 and is connected with dwang 23, and adjusting screw 21 wears out the global of handling board 13's one end and has seted up the perforation, and the dwang 23 is worn to establish in the perforation, and dwang 23 is through perforation and adjusting screw 21 sliding connection. The both ends welded fastening of dwang 23 has a ball 231 that keeps off, and the diameter of ball 231 keeps off is greater than fenestrate aperture to make dwang 23 be difficult for following adjusting screw 21 and drop.
Referring to fig. 2 and 3, each jaw assembly 3 includes a connecting rod 31, an upper clamp plate 32, a connecting plate 33, and a lower clamp plate 34. One end of each connecting rod 31 is welded and fixed with each connecting nut 22, and the other end of each connecting rod 31 is welded and fixed with the middle part of the upper clamping plate 32. Wherein, integrated into one piece between upper plate 32, connecting plate 33 and the lower plate 34 for the structural strength of clamping jaw assembly 3 is better. The connection plate 33 is located between the upper plate 32 and the lower plate 34, and a clamping slot 35 is formed between the upper plate 32, the connection plate 33, and the lower plate 34. When handling the stent, the circumferential wall of the stent end extends into the holding notch 35.
Referring to fig. 3, two sets of clamping structures 4 are provided on each upper clamping plate 32 to improve the stability of the connection between the jaw assembly 3 and the culvert. The two sets of clamping structures 4 are symmetrically arranged on both sides of the connecting rod 31. Each clamping arrangement 4 comprises a locking bolt 41, a clamping plate 43 and two guide rods 42. The locking bolt 41 and the two guide rods 42 are vertically arranged on the upper clamping plate 32 in a penetrating manner, and the two guide rods 42 are symmetrically arranged on two sides of the locking bolt 41. The locking bolt 41 is connected with the upper clamping plate 32 in a threaded manner, one end of the locking bolt 41 close to the lower clamping plate 34 is connected with the clamping plate 43 in a rotating manner, each guide rod 42 is connected with the upper clamping plate 32 in a sliding manner, and one axial end of each guide rod 42 is fixedly welded with the clamping plate 43. In order to further improve the stability of the connection between the clamping jaw assembly 3 and the culvert, an anti-slip elastic pad 341 is bonded and fixed on one surface of the lower clamping plate 34 close to the upper clamping plate 32 and one surface of the clamping plate 43 close to the lower clamping plate 34, and in this embodiment, the anti-slip elastic pad 341 is made of rubber.
The implementation principle of the hoisting device of the culvert pipe for municipal construction is as follows: when the staff uses the hoisting device to hoist the culvert pipe, the lifting hook 12 is connected with hoisting equipment, and each clamping jaw assembly 3 is moved to the end part of the culvert pipe to be hoisted. Afterwards, the staff adjusts the distance between the two clamping jaw assemblies 3 to be the same as the length of the stent by adjusting the structure 2, so that the circumferential wall of the end of the stent extends into the clamping notch 35. Subsequently, the staff makes the fitting bolt 41 drive the clamping plate 43 to move towards the culvert pipe direction by screwing the fitting bolt 41 until the clamping plate 43 abuts against the outer peripheral surface of the culvert pipe, and then the clamping jaw assembly 3 and the culvert pipe are locked and fixed, so that the stability of connection between the clamping jaw assembly 3 and the culvert pipe is improved. And then, the hoisting operation of the culvert pipe can be carried out. Hoist cable 11 is connected with handling board 13 earlier, and oblique pulling force is applyed to handling board 13 to hoist cable 11, and through adjusting structure 2, handling board 13 is connected with clamping jaw assembly 3, applys vertical pulling force to clamping jaw assembly 3, is difficult for producing horizontally component to the culvert pipe then for the handling of culvert pipe is more steady, and clamping jaw assembly 3 is difficult for droing.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (8)
1. The utility model provides a hoist device of culvert pipe for municipal construction, includes handling subassembly (1) and clamping jaw subassembly (3), its characterized in that: the hoisting assembly (1) comprises a plurality of slings (11), lifting hooks (12) and hoisting plates (13), wherein one ends of the slings (11) are fixedly connected with the hoisting plates (13), the other ends of the slings (11) are fixedly connected with the hoisting plates (13), the clamping jaw assemblies (3) are provided with two groups, the hoisting plates (13) are provided with adjusting structures (2), each clamping jaw assembly (3) is fixedly connected with the hoisting plates (13) relatively through the adjusting structures (2), the adjusting structures (2) are used for adjusting the distance between the two groups of clamping jaw assemblies (3), and the clamping jaw assemblies (3) are used for being fixedly connected with the end portions of culvert pipes.
2. The hoisting device of the culvert pipe for municipal construction according to claim 1, characterized in that: adjust structure (2) including adjusting screw (21), two coupling nut (22) and dwang (23), the groove of sliding (131) have been seted up on handling board (13) is close to the one side of clamping jaw subassembly (3), each coupling nut (22) sliding connection is in the groove of sliding (131), adjusting screw (21) are located the groove of sliding (131), adjusting screw (21) rotate with handling board (13) and are connected, each coupling nut (22) and adjusting screw (21) threaded connection, the screw thread of adjusting screw (21) center both sides is revolved to opposite, handling board (13) and dwang (23) are worn out to adjusting screw (21) axial one end and are connected.
3. The hoisting device of the culvert pipe for municipal construction according to claim 2, characterized in that: adjusting screw (21) are worn out and have been seted up the perforation on the global of the one end of handling board (13), dwang (23) slide and wear to locate adjusting screw (21) in the perforation, the axial both ends of dwang (23) are fixed with fender ball (231), the diameter of fender ball (231) is greater than fenestrate diameter.
4. The hoisting device of the culvert pipe for municipal construction according to claim 2, characterized in that: each clamping jaw assembly (3) includes punch holder (32), lower plate (34), connecting plate (33) and connecting rod (31), the one end and corresponding coupling nut (22) fixed connection of connecting rod (31), the other end and punch holder (32) fixed connection of connecting rod (31), connecting plate (33) are located between punch holder (32) and lower plate (34), punch holder (32) and lower plate (34) all with connecting plate (33) fixed connection, be formed with centre gripping notch (35) between punch holder (32), connecting plate (33) and lower plate (34), the perisporium of culvert pipe tip stretches into in centre gripping notch (35).
5. The hoisting device of the culvert pipe for municipal construction according to claim 4, characterized in that: the connecting rod (31) is kept away from the one end of coupling nut (22) and is connected with the middle part of punch holder (32), be provided with two sets of tight structures (4) of clamp on punch holder (32), it is two sets of press from both sides tight structure (4) symmetry and set up in the both sides of connecting rod (31), punch holder (32) are connected fixedly through pressing from both sides tight structure (4) and culvert pipe.
6. The hoisting device of the culvert pipe for municipal construction according to claim 5, characterized in that: each clamping structure (4) comprises a locking bolt (41), a clamping plate (43) and a guide rod (42), wherein the locking bolt (41) and the guide rod (42) are arranged in the upper clamping plate (32) in a penetrating mode, the locking bolt (41) is in threaded connection with the upper clamping plate (32), one end, close to the lower clamping plate (34), of the locking bolt (41) is rotatably connected with the clamping plate (43), the guide rod (42) is in sliding connection with the upper clamping plate (32), and one end of the guide rod (42) is fixedly connected with the clamping plate (43).
7. The hoisting device of the culvert pipe for municipal construction according to claim 6, characterized in that: and an anti-skidding elastic pad (341) is fixed on one surface of the lower clamping plate (34) close to the upper clamping plate (32) and one surface of the clamping plate (43) close to the lower clamping plate (34).
8. The hoisting device of the culvert pipe for municipal construction according to claim 1, characterized in that: lifting hook (12) are including coupler body (121) and connect lantern ring (123), connect lantern ring (123) to rotate the cover and establish the pole portion at coupler body (121), two fender rings (122) of pole portion fixedly connected with of coupler body (121), it is located between two fender rings (122) to connect lantern ring (123), each one end and the connection lantern ring (123) fixed connection of handling board (13) board are kept away from in hoist cable (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120646897.0U CN214422082U (en) | 2021-03-30 | 2021-03-30 | Hoisting device of culvert pipe for municipal construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120646897.0U CN214422082U (en) | 2021-03-30 | 2021-03-30 | Hoisting device of culvert pipe for municipal construction |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214422082U true CN214422082U (en) | 2021-10-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120646897.0U Expired - Fee Related CN214422082U (en) | 2021-03-30 | 2021-03-30 | Hoisting device of culvert pipe for municipal construction |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214422082U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116768037A (en) * | 2023-07-12 | 2023-09-19 | 中建八局(甘肃)建设有限公司 | Auxiliary hoisting device for round reinforced concrete pipe joint |
| CN117430001A (en) * | 2022-07-20 | 2024-01-23 | 广东华盈建设集团有限公司 | A culvert transfer device used in municipal construction |
-
2021
- 2021-03-30 CN CN202120646897.0U patent/CN214422082U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117430001A (en) * | 2022-07-20 | 2024-01-23 | 广东华盈建设集团有限公司 | A culvert transfer device used in municipal construction |
| CN116768037A (en) * | 2023-07-12 | 2023-09-19 | 中建八局(甘肃)建设有限公司 | Auxiliary hoisting device for round reinforced concrete pipe joint |
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