CN211081965U - Self-walking hydraulic trestle - Google Patents
Self-walking hydraulic trestle Download PDFInfo
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- CN211081965U CN211081965U CN201922243468.4U CN201922243468U CN211081965U CN 211081965 U CN211081965 U CN 211081965U CN 201922243468 U CN201922243468 U CN 201922243468U CN 211081965 U CN211081965 U CN 211081965U
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- 238000010276 construction Methods 0.000 claims abstract description 33
- 230000008859 change Effects 0.000 claims abstract description 16
- 230000007246 mechanism Effects 0.000 claims description 9
- 125000003003 spiro group Chemical group 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 2
- 230000008901 benefit Effects 0.000 abstract description 3
- 238000009415 formwork Methods 0.000 description 14
- 239000003921 oil Substances 0.000 description 10
- 230000000875 corresponding effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 241001669679 Eleotris Species 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 238000005266 casting Methods 0.000 description 1
- 238000005056 compaction Methods 0.000 description 1
- 239000010720 hydraulic oil Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
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Abstract
The utility model provides a self-walking hydraulic trestle, which comprises a trestle main body for vehicles to pass through, wherein, two ends of the trestle main body are respectively provided with a first supporting leg and a second supporting leg, a walking wheel capable of changing the height is arranged on the trestle main body at one end of the first supporting leg, one end close to the second supporting leg is provided with a movable supporting leg capable of moving along the length direction of the trestle main body, and the movable supporting leg can stretch and contract to change the length; the first supporting leg and the second supporting leg can adjust the transverse distance between the first supporting leg and the trestle body; the trestle main part bottom hangs has the inverted arch template and the filling template that set gradually along tunnel ground construction direction, the relative distance of inverted arch template and filling template can be followed vertical direction change and trestle main part. The utility model has the advantages that: the structure that sets up in turn and ground contact in trestle body both ends is in order to realize position adjustment, sets up inverted arch template and filling template in the below, improves the efficiency of construction.
Description
Technical Field
The utility model relates to a tunnel construction technical field especially relates to a from walking hydraulic pressure landing stage.
Background
At present in tunnel work progress, often need use hydraulic trestle as interim road surface and supply the vehicle current, the tunnel surface of hydraulic trestle below needs the construction to pour the road surface, the road surface construction of removing hydraulic trestle to tunnel depths after the road surface solidifies continues tunnel depths, the road surface construction mainly includes construction arc invert and fills these two steps of construction on the invert, generally divide these two steps to be under construction among the prior art, fix the invert template on hydraulic trestle through the manual work earlier, when hydraulic trestle stretches out the invert that removes to make the afterbody to the tunnel and spills gradually, construction is filled on this part invert, work efficiency is lower.
In addition, in the construction process, especially in the position with radian such as tunnel turning, sometimes the position of the inverted arch template needs to be transversely adjusted to gradually realize tunnel turning, because the inverted arch template needs to be fixed by virtue of the hydraulic trestle, which means that the position of the hydraulic trestle needs to be transversely adjusted, it is very difficult to independently move the bulky hydraulic trestle, and the problem becomes more difficult to solve under the condition that the position accuracy of the inverted arch template needs to be considered, thereby bringing great challenges to tunnel construction.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that a hydraulic pressure landing stage that the position of automatic adjustment hydraulic pressure landing stage and can carry out the inverted arch simultaneously and fill the construction is provided.
The utility model discloses a solve above-mentioned technical problem through following technical scheme: a self-walking hydraulic trestle comprises a trestle main body for vehicles to pass through, wherein two ends of the trestle main body are respectively provided with a slope hinged and fixed relative to the trestle main body, two ends of the trestle main body along the length direction are respectively provided with a first supporting leg and a second supporting leg which are in contact with the ground to support the trestle main body, a walking wheel capable of changing the height relative to the first supporting leg is fixedly arranged on the trestle main body at one end of the first supporting leg, a movable supporting leg capable of changing the position along the length direction of the trestle main body is arranged at one end close to the second supporting leg, and the movable supporting leg can change the length in a telescopic manner along the vertical direction;
two first supporting legs and two second supporting legs are oppositely arranged along two sides of the trestle main body respectively, and the two oppositely arranged first supporting legs and two oppositely arranged second supporting legs are fixedly connected with the trestle main body through a transverse adjusting mechanism; the transverse adjusting mechanism comprises a sleeve which is arranged at the bottom of the trestle main body and is axially vertical to the length direction of the trestle main body, a polished rod fixedly connected with two first supporting legs or two second supporting legs penetrates through the sleeve, and first oil cylinders fixedly connected with the first supporting legs or the second supporting legs at two sides respectively are fixed at two ends of the sleeve;
trestle main part bottom is fixed with along length direction sliding fit's mounting with the trestle main part, hang the invert template and the filling template that are in trestle main part bottom and set gradually along tunnel ground construction direction on the mounting, the relative distance of vertical direction change and trestle main part can be followed to invert template and filling template.
The utility model discloses a set up respectively at landing stage body both ends and can carry out the structure that supports with the ground contact in turn with the vertical and transverse motion of realization landing stage body, simplified the process of hydraulic pressure landing stage adjustment position, set up inverted arch template and filling template simultaneously in landing stage body below, simplified the work progress, improve the efficiency of construction.
Preferably, both sides of the upper surface of the trestle body are fixed with trestle baffles, the upper surface of the trestle baffle is provided with a track plate extending outside the trestle body along the horizontal direction, and the movable supporting legs and the fixing pieces are respectively matched with the track plate and are driven to press the track plate to move through a hydraulic motor.
Preferably, the mounting includes that at least four divide the connecting seat of arranging landing stage body both sides in, connecting seat and inverted arch template fixed connection, the height of vertical direction flexible adjustment inverted arch template can be followed to the connecting seat.
Preferably, the inverted arch template is a full-width inverted arch template, and comprises an approximately arc inverted arch base and side plates hinged to two side edges of the inverted arch base respectively, and second oil cylinders connected with the side plates are arranged on the inverted arch base.
Preferably, the lateral surface of sideboard roughly is the horizontal direction, is fixed with a plurality of fixed pipes along landing stage body length direction on the lateral surface of sideboard, the axial of fixed pipe is parallel with the lateral surface of sideboard and perpendicular with the length direction of landing stage body, and the fixed pipe endotheca is equipped with the stagnant water band clamp that can follow its axial change position.
Preferably, the one end that the filling template was kept away from to the inverted arch template has the end-capping template of wrapping up inverted arch base and sideboard and can splicing each other in the bottom, the terminal surface that the end-capping template spliced each other is provided with the wedge ear, and the wedge ear on the adjacent end-capping template has the fitting surface of following self normal direction coincidence, the wedge ear groove has been seted up on the fitting surface, be provided with grafting complex voussoir on the wedge ear groove.
Preferably, the inverted arch template still is provided with a plurality of holding-down blocks of overhang in the inverted arch template outside along trestle body length direction's both ends, the holding-down block is connected with inverted arch base spiro union along vertical direction.
Preferably, the construction length of the filling template is equal to that of the inverted arch template, the front end of the filling template is fixedly connected with the rear end of the inverted arch template, at least the rear end of the filling template is fixedly connected with the bottom of the trestle body, and the height of the filling template and the height of the inverted arch template are changed synchronously.
Preferably, the filling template at least comprises a central groove template, the central groove template comprises two oppositely arranged side plates, and the bottoms of the side plates are respectively hinged with two sides of a pressing plate; the upper ends of the opposite surfaces of the two side plates are respectively hinged with the end part of a connecting rod, the other end of the connecting rod is provided with a waist-shaped hole along the length direction of the connecting rod, and a pin shaft which penetrates through the waist-shaped holes of the two connecting rods to enable the two connecting rods to be kept horizontal is further arranged on the central groove template; and a third oil cylinder which is respectively hinged with the two side plates and can stretch out and draw back along the horizontal direction is arranged above the connecting rod.
The utility model provides a pair of from walking hydraulic pressure landing stage's advantage lies in: through set up respectively at landing stage body both ends and can carry out the vertical and transverse motion of structure in order to realize the landing stage body that supports with ground contact in turn, simplified the process of hydraulic pressure landing stage adjustment position, set up inverted arch template and filling template simultaneously in landing stage body below, simplified the work progress, improve the efficiency of construction.
Drawings
Fig. 1 is a schematic view of a self-propelled hydraulic trestle according to an embodiment of the present invention;
fig. 2 is a schematic view of a use state of a self-propelled hydraulic trestle according to an embodiment of the present invention;
fig. 3 is a schematic view of a first support leg and a traveling wheel of a self-traveling hydraulic trestle according to an embodiment of the present invention;
FIG. 4 is a schematic diagram of a second supporting leg and a movable supporting leg of a self-propelled hydraulic trestle according to an embodiment of the present invention
Fig. 5 is a schematic view of a self-propelled hydraulic trestle transverse adjustment mechanism provided in an embodiment of the present invention;
fig. 6 is a schematic view illustrating the fitting of the fixing member of the self-propelled hydraulic trestle with the inverted arch form according to the embodiment of the present invention;
fig. 7 is a schematic view of an inverted arch form of a self-propelled hydraulic trestle according to an embodiment of the present invention;
fig. 8 is an enlarged view of an axial portion of an inverted arch form of a self-propelled hydraulic trestle according to an embodiment of the present invention;
fig. 9 is a schematic view of a connection manner of end-capped templates of a self-walking hydraulic trestle according to an embodiment of the present invention;
fig. 10 is a schematic diagram of a center channel form of a self-propelled hydraulic trestle according to an embodiment of the present invention;
fig. 11 is a schematic diagram illustrating a change in a use state of a central groove of a self-propelled hydraulic trestle according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in detail with reference to the accompanying drawings.
Referring to fig. 1 and 2, the embodiment provides a self-walking hydraulic trestle, which includes a trestle body 1 for vehicles to pass through, where two ends of the trestle body 1 are respectively provided with a slope 11 hinged and fixed relative to the trestle body 1, and the vehicles are driven into the trestle body 1 from the road surface through the slope 11; with reference to fig. 3 and 4, a first support leg 12 and a second support leg 14 which are in contact with the ground and support the trestle body 1 are respectively arranged at two ends of the trestle body 1 along the length direction, a travelling wheel 13 which can change the height relative to the first support leg 12 is fixedly arranged on the trestle body 1 at one end of the first support leg 12, a movable support leg 15 which can change the position along the length direction of the trestle body 1 is arranged at one end close to the second support leg 14, and the movable support leg 15 can change the length along the vertical direction in a telescopic manner;
when the hydraulic trestle needs to be moved along the length direction, the movable supporting legs 15 descend to support the ground, the second supporting legs 14 are lifted to be away from the bottom surface, the walking wheels 13 move downwards to be in contact with the ground, so that the first supporting legs 12 are suspended, the whole trestle main body 1 moves forwards to a specified position when the walking wheels 13 are driven to walk along the ground, then the two first supporting legs 12 and the second supporting legs 14 descend to support the ground, so that the longitudinal movement of the hydraulic trestle can be realized, if the movement distance is far, the long-distance movement can be decomposed into a plurality of short-distance movements by repeatedly adjusting the positions of the movable supporting legs 15.
Two first supporting legs 12 and two second supporting legs 14 are respectively and oppositely arranged along two sides of the trestle body 1 to ensure the stable supporting of the trestle body 1, the two first supporting legs 12 and the two second supporting legs 14 which are oppositely arranged are respectively and fixedly connected with the trestle body 1 through a transverse adjusting mechanism 2, referring to figure 5, the transverse adjusting mechanism 2 comprises a sleeve 21 which is arranged at the bottom of the trestle body 1 and is axially vertical to the length direction of the trestle body 1, a polish rod 22 which is fixedly connected with the two first supporting legs 12 or the two second supporting legs 14 is penetrated in the sleeve 21, first oil cylinders 23 which are fixedly connected with the first supporting legs 12 or the two second supporting legs 14 at two sides are respectively fixed at two ends of the sleeve 21, the transverse distance between the first supporting legs 12 or the second supporting legs 14 at two sides and the trestle body 1 can be adjusted by adjusting the extension and retraction amount of the first oil cylinders 23 at two sides, the integral transverse movement of the hydraulic trestle is realized.
According to the principle of the transverse movement, the amplitude of each transverse movement of the trestle body 1 is small, and if the range needing to be adjusted is large, the walking wheels 13, the movable supporting legs 15, the first supporting legs 12 and the second supporting legs 14 can be alternately supported on the ground to realize continuous transverse movement.
A fixing piece 3 which is in sliding fit with the trestle body 1 along the length direction is fixed at the bottom of the trestle body 1, an inverted arch template 4 and a filling template (not shown) which are arranged below the trestle body 1 and are sequentially arranged along the tunnel ground construction direction are hung on the fixing piece 3, and the inverted arch template 4 and the filling template can change the relative distance with the trestle body 1 along the vertical direction; thereby whereabouts when the construction is built with the road surface compaction, the lifting is carried forward to next construction position along with landing stage main part 1 after the construction is accomplished to can finely tune the position of invert template 4 and filling template through the length direction change position of mounting 3 along landing stage main part 1 when needing.
The inverted arch template 4 and the filling template are continuously arranged, so that inverted arch construction can be performed on the former mould, meanwhile, filling construction can be performed on the latter mould, the pouring time is reduced, the trestle body 1 can directly walk on the poured filling when moved at the back, damage to the inverted arch is prevented, the trestle body 1 can directly walk along the road surface to leave the tunnel after pouring, and the walking wheels 13 do not need to be lifted to the filling height from the inverted arch height and then leave the tunnel; the work efficiency is improved, meanwhile, the work flow is reduced, and the labor input is reduced.
Referring to fig. 6, a trestle baffle 16 is fixed on each of two sides of the upper surface of the trestle body 1, a rail plate 17 extending outside the trestle body 1 along the horizontal direction is arranged on the upper surface of the trestle baffle 16, the movable support legs 15 and the fixing pieces 3 are respectively matched with the rail plate 17 and driven to move along the rail plate 17 by a hydraulic motor, and the specific structures of the rail plate 17 and the movable support legs 15, namely, the corresponding parts on the fixing pieces 3, can be selected by themselves only by meeting the strength requirement of fixed connection and keeping free matching in the length direction.
Fixing piece 3 includes the connecting seat 31 of landing stage body 1 both sides evenly arranged in four at least, connecting seat 31 and 4 fixed connection of invert template, connecting seat 31 can follow the height of the relative landing stage body 1 of vertical direction telescopic adjustment invert template 4.
Combine fig. 7 and 8, inverted arch template 4 is full inverted arch template, including being arc inverted arch base 41 roughly and respectively with the articulated sideboard 42 of being connected in inverted arch base 41 both sides limit, be provided with the second hydro-cylinder 43 of being connected with sideboard 42 on the inverted arch base 41, during the user state, the lateral surface (not shown in the drawing) of sideboard 42 roughly is the horizontality, be fixed with a plurality of fixed pipes 44 along the length direction of landing stage body 1 on the lateral surface, the axial of fixed pipe 44 is parallel and perpendicular with the length direction of landing stage body 1 with the lateral surface of sideboard, and fixed pipe 44 endotheca is equipped with can follow the waterstop clamp 45 of its axial change position to realize the accurate location of vertical waterstop in the work progress, and can change the tensioning condition of waterstop through the relative extension length of fixed pipe 44 of adjustment waterstop clamp 45. Invert template 4 still is provided with the compact heap 46 of a plurality of overhangs in the invert template 4 outside along 1 length direction's of landing stage body both ends, compact heap 46 is fixed along vertical direction and 41 spiro unions of invert base, and when the construction, invert template 4 tops are hung in landing stage body 1 below through mounting 3, and the construction area both ends set up the sleeper with compact heap 46 butt, make compact heap 46 and sleeper top tight through screw adjustment to prevent that invert template 4 from descending and influence invert construction thickness, ensure that the road surface shaping accords with construction requirements.
With reference to fig. 9, one end of the inverted arch formwork 4, which is far away from the filling formwork, is provided with an end-capping formwork 47 which is wrapped with an inverted arch base 41 and a side plate 42 at the outer side and can be spliced with each other, the end face is limited during inverted arch construction, casting molding is ensured, splicing and fixing are performed, disassembly and assembly are convenient, the cast inverted arch is not damaged during taking and placing, wedge lugs 48 are arranged on the end faces spliced with each other of the end-capping formwork 47, the wedge lugs 48 on the adjacent end-capping formwork 47 are provided with coincident matching faces, wedge lug grooves (not shown) are formed on the matching faces, wedge blocks 49 penetrating through the two wedge lug grooves are arranged on the adjacent wedge lugs 48, the wedge blocks 49 are knocked into the wedge lug grooves to fix and limit the adjacent end-capping formwork 47 through hammers, splicing of the end-capping formwork 47 is rapidly and conveniently achieved, disassembly; furthermore, the end-sealing template 47 can be matched with the inverted arch base 41 and the side plate 42 by fixing the wedge lugs 48 and the wedge blocks 49.
The construction length of filling the template equals with invert template 4's construction length to keep the correspondence of front and back mould, the front end of filling the template and invert template 4's rear end fixed connection, hydraulic cylinder fixed connection is passed through with the bottom of landing stage body 1 to the at least rear end of filling the template, thereby can keep the synchronous adjustment height with invert template 4.
The filling template comprises at least a central trench template 5; referring to fig. 10 and 11, the central groove formwork 5 includes two symmetrically disposed side plates 51, the bottoms of the side plates 51 are hinged to two sides of a pressing plate 52, when a filling layer is constructed, the two side plates 51 and the pressing plate 52 form an approximately rectangular or approximately trapezoidal shape to construct a central groove in the middle of the filling layer, opposite sides above the two side plates 51 are hinged to ends of a connecting rod 53, the other end of the connecting rod 53 is provided with a waist-shaped hole (not shown) along the length direction, the waist-shaped holes coincide when the two connecting rods 53 are straightened along the horizontal direction, and the two waist-shaped holes are locked by a pin 54; a third cylinder 55 hinged with the two side plates 51 and capable of extending and retracting along the horizontal direction is arranged above the connecting rod 53.
During construction operation, the inverted arch formwork 4 and the filling formwork are synchronously driven to move downwards to respectively pour inverted arches and pour filling on the shaped inverted arches, after pouring is completed, the end-sealing formwork 47 is firstly detached, then the second oil cylinder 43 is contracted to enable the side plates 42 to be retracted relative to the inverted arch base 41, meanwhile, the third oil cylinder 55 is used for contracting the two side plates 51 inwards along the horizontal direction, so that the side plates are separated from contact with the side edge of the central groove, then the inverted arch formwork 4 and the central groove formwork 5 are lifted upwards, and the possibility that the formworks collide with the formed central groove or inverted arch when the position is adjusted at the later stage is reduced.
In the embodiment, a plurality of devices such as the first supporting leg 12, the traveling wheels 13, the second supporting leg 14, the movable supporting leg 15, the first oil cylinder, the second oil cylinder and the third oil cylinder need to realize linear extension, and as the embodiment is arranged on the basis of the hydraulic trestle, all linear extension mechanisms used in the embodiment are hydraulically driven or directly adopt hydraulic oil cylinders; the corresponding driving mechanism can be a hydraulic motor; on the basis, necessary liquid pipelines and control systems are required to be arranged, which are not improvements of the prior art and belong to the prior art, and are not described in detail in the application; of course, those skilled in the art may implement corresponding actions by the electric drive system, which is not strictly limited in this application.
Claims (9)
1. The utility model provides a from walking hydraulic pressure landing stage which characterized in that: the trestle comprises a trestle main body for vehicles to pass through, wherein slopes hinged and fixed relative to the trestle main body are respectively arranged at two ends of the trestle main body, a first supporting leg and a second supporting leg which are in contact with the ground and support the trestle main body are respectively arranged at two ends of the trestle main body along the length direction, a travelling wheel capable of changing the height relative to the first supporting leg is fixedly arranged on the trestle main body at one end of the first supporting leg, a movable supporting leg capable of changing the position along the length direction of the trestle main body is arranged at one end close to the second supporting leg, and the movable supporting leg can change the length in a telescopic manner along the vertical;
two first supporting legs and two second supporting legs are oppositely arranged along two sides of the trestle main body respectively, and the two oppositely arranged first supporting legs and two oppositely arranged second supporting legs are fixedly connected with the trestle main body through a transverse adjusting mechanism; the transverse adjusting mechanism comprises a sleeve which is arranged at the bottom of the trestle main body and is axially vertical to the length direction of the trestle main body, a polished rod fixedly connected with two first supporting legs or two second supporting legs penetrates through the sleeve, and first oil cylinders fixedly connected with the first supporting legs or the second supporting legs at two sides respectively are fixed at two ends of the sleeve;
trestle main part bottom is fixed with along length direction sliding fit's mounting with the trestle main part, hang the invert template and the filling template that are in trestle main part bottom and set gradually along tunnel ground construction direction on the mounting, the relative distance of vertical direction change and trestle main part can be followed to invert template and filling template.
2. The self-propelled hydraulic landing stage of claim 1, wherein: trestle baffles are fixed on two sides of the upper surface of the trestle main body, track plates extending outside the trestle main body along the horizontal direction are arranged on the upper surface of the trestle baffle, and the movable supporting legs and the fixing pieces are respectively matched with the track plates and driven to move along the track plates through hydraulic motors.
3. The self-propelled hydraulic landing stage of claim 1, wherein: the mounting includes that at least four divide arranges the connecting seat in landing stage body both sides in, connecting seat and inverted arch template fixed connection, the height of vertical direction flexible adjustment inverted arch template can be followed to the connecting seat.
4. A self-propelled hydraulic landing stage according to claim 3, wherein: the inverted arch template is a full-width inverted arch template and comprises an approximately arc inverted arch base and side plates hinged to two side edges of the inverted arch base respectively, and second oil cylinders connected with the side plates are arranged on the inverted arch base.
5. The self-propelled hydraulic landing stage of claim 4, wherein: the lateral surface of sideboard roughly is the horizontal direction, is fixed with a plurality of fixed pipes along landing stage body length direction on the lateral surface of sideboard, the axial of fixed pipe is parallel with the lateral surface of sideboard and perpendicular with the length direction of landing stage body, and the fixed pipe endotheca is equipped with the stagnant water band clamp that can follow its axial change position.
6. A self-propelled hydraulic landing stage according to claim 3, wherein: the one end that the filling template was kept away from to the inverted arch template has the end-capping template that can splice each other in bottom parcel inverted arch base and sideboard, the terminal surface that the end-capping template spliced each other is provided with the wedge ear, and the wedge ear on the adjacent end-capping template has the fitting surface along self normal direction coincidence, the wedge ear groove has been seted up on the fitting surface, be provided with grafting complex voussoir on the wedge ear groove.
7. A self-propelled hydraulic landing stage according to claim 3, wherein: the inverted arch template still is provided with a plurality of overhangs at the compact heap of inverted arch template outside along landing stage body length direction's both ends, the compact heap is connected with inverted arch base spiro union along vertical direction.
8. A self-propelled hydraulic landing stage according to claim 3, wherein: the construction length of the filling template is equal to that of the inverted arch template, the front end of the filling template is fixedly connected with the rear end of the inverted arch template, at least the rear end of the filling template is fixedly connected with the bottom of the trestle body, and the height of the filling template and the height of the inverted arch template are changed synchronously.
9. The self-propelled hydraulic landing stage of claim 8, wherein: the filling template at least comprises a central groove template, the central groove template comprises two oppositely arranged side plates, and the bottoms of the side plates are respectively hinged with two sides of a pressing plate; the upper ends of the opposite surfaces of the two side plates are respectively hinged with the end part of a connecting rod, the other end of the connecting rod is provided with a waist-shaped hole along the length direction of the connecting rod, and a pin shaft which penetrates through the waist-shaped holes of the two connecting rods to enable the two connecting rods to be kept horizontal is further arranged on the central groove template; and a third oil cylinder which is respectively hinged with the two side plates and can stretch out and draw back along the horizontal direction is arranged above the connecting rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922243468.4U CN211081965U (en) | 2019-12-12 | 2019-12-12 | Self-walking hydraulic trestle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922243468.4U CN211081965U (en) | 2019-12-12 | 2019-12-12 | Self-walking hydraulic trestle |
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| Publication Number | Publication Date |
|---|---|
| CN211081965U true CN211081965U (en) | 2020-07-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922243468.4U Expired - Fee Related CN211081965U (en) | 2019-12-12 | 2019-12-12 | Self-walking hydraulic trestle |
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| CN (1) | CN211081965U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114395974A (en) * | 2022-02-08 | 2022-04-26 | 连云港创新储运设备制造有限公司 | Steel structure trestle with extension frame and implementation method thereof |
-
2019
- 2019-12-12 CN CN201922243468.4U patent/CN211081965U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114395974A (en) * | 2022-02-08 | 2022-04-26 | 连云港创新储运设备制造有限公司 | Steel structure trestle with extension frame and implementation method thereof |
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Granted publication date: 20200724 |