CN112761034A - Fluid material pouring trolley - Google Patents
Fluid material pouring trolley Download PDFInfo
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- CN112761034A CN112761034A CN202011553373.3A CN202011553373A CN112761034A CN 112761034 A CN112761034 A CN 112761034A CN 202011553373 A CN202011553373 A CN 202011553373A CN 112761034 A CN112761034 A CN 112761034A
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- hose
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- 239000000463 material Substances 0.000 title claims abstract description 50
- 239000012530 fluid Substances 0.000 title claims abstract description 34
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 33
- 239000010959 steel Substances 0.000 claims abstract description 33
- 230000007246 mechanism Effects 0.000 claims description 35
- 238000007599 discharging Methods 0.000 claims description 26
- 238000005266 casting Methods 0.000 claims description 12
- 230000000149 penetrating effect Effects 0.000 claims description 7
- 230000000712 assembly Effects 0.000 claims description 3
- 238000000429 assembly Methods 0.000 claims description 3
- 238000004891 communication Methods 0.000 claims description 3
- 238000005096 rolling process Methods 0.000 claims description 2
- 238000010276 construction Methods 0.000 abstract description 4
- 238000000034 method Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 239000002861 polymer material Substances 0.000 description 3
- 238000007906 compression Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
- E01B29/00—Laying, rebuilding, or taking-up tracks; Tools or machines therefor
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Mechanically-Actuated Valves (AREA)
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Abstract
The invention discloses a fluid material pouring trolley, which belongs to the technical field of embedded track construction, and mainly comprises a walking bracket, a storage container and a diversion trench with a guide block, so as to pour fluid materials for a steel rail.
Description
Technical Field
The invention relates to the technical field of embedded track construction, in particular to a fluid material pouring trolley.
Background
In recent years, embedded rails have been operated in many domestic lines as a new type of rail transit system product. In the construction process of the embedded track, the pouring quality of the high polymer material is particularly important. The existing construction process generally depends on manual holding of a pouring barrel for pouring, and it is difficult to ensure that fluid materials can be poured along the extending direction of the steel rail all the time, so that the consistency of final forming of the rail is influenced. Therefore, how to ensure that the fluid material can be extended and poured along the steel rail all the time during pouring so as to improve the consistency of track forming becomes a technical problem to be solved urgently.
Disclosure of Invention
The invention aims to provide a fluid material pouring trolley which can ensure that a fluid material is poured along the extending direction of a steel rail in the pouring process.
The embodiment of the invention is realized by the following steps:
a fluid material casting trolley comprising:
the walking bracket is provided with a walking mechanism;
the storage container is used for storing fluid materials, and a discharge hole is formed in the bottom of the storage container; the material storage container is arranged on the walking bracket;
the device comprises a diversion trench, a material inlet is formed in the top of the diversion trench, a material outlet is formed in the bottom of the diversion trench, the material inlet of the diversion trench is communicated with the material outlet of a material storage container, and the material outlet of the diversion trench is used for pouring fluid materials to a steel rail; the guide groove is connected with a guide block, the guide block is provided with an embedding part which is embedded in the steel rail top groove in a sliding mode, and the guide block and the guide groove are fixed in relative positions in the direction of the left side and the right side of the steel rail.
Preferably, the diversion trench is hinged with the walking bracket, and a rotation plane between the diversion trench and the walking bracket is perpendicular to the extension direction of the steel rail; the guide groove is fixedly provided with a cross shaft with an axis extending along the transverse direction of the steel rail, and the guide block is in running fit with the cross shaft.
Preferably, the storage container is connected with the diversion trench through a switch valve mechanism, and the switch valve mechanism can selectively open or cut off the communication between the storage container and the diversion trench.
Preferably, the switch valve mechanism comprises a gate valve and a hose for connecting the discharge port of the storage container;
the gate valve comprises a valve seat and a valve core, the valve seat is provided with a valve port for the hose to penetrate through, and the valve core is in sliding fit with the valve seat; the valve core can slide relative to the valve seat to selectively press the part of the hose penetrating into the valve port to close the hose or release the part of the hose penetrating into the valve port to open the hose.
Preferably, the switch valve mechanism further comprises a hopper, the hopper is fixedly connected with the valve seat, the hose is communicated with the hopper after penetrating into the valve port, and a discharge port at the bottom of the hopper is communicated with a feed port of the diversion trench.
Preferably, the switch valve mechanism further comprises a self-locking piece for applying elastic force to the valve core, and the elastic force applied to the valve core by the self-locking piece enables the valve core to have the tendency of extruding the hose to penetrate into the position in the valve port.
Preferably, the valve further comprises a driving mechanism for driving the valve plug to slide relative to the valve seat, and the driving mechanism comprises a first connecting rod, a second connecting rod and a fixing rod; one end of the first connecting rod is hinged with the valve core, and the other end of the first connecting rod is hinged with the second connecting rod; the second connecting rod is hinged with one end of the fixed rod, the valve seat is fixed at the other end of the fixed rod, and the first connecting rod, the second connecting rod, the valve seat and the valve core form a connecting rod slider mechanism.
Preferably, the part between the two ends of the fixed rod is hinged with the walking support, so that the fixed rod, the valve seat and the hopper which are fixedly connected together can swing towards the left side and the right side relative to the walking support.
Preferably, running gear includes a plurality of first telescopic links and the universal wheel corresponding with first telescopic link quantity, the bottom of first telescopic link constitutes its flexible end and its top constitutes its stiff end, and the walking support left and right sides is located respectively to a plurality of first telescopic links, the stiff end of first telescopic link is connected with the walking support, the universal wheel is connected and is served in the flexible of corresponding first telescopic link.
Preferably, still be connected with at least two sets of guide assembly who locates the walking support front and back both sides respectively on the walking support, the guide assembly includes the second telescopic link and connects the leading wheel on the flexible end of second telescopic link, the leading wheel is arranged in the rail overhead tank of roll connection, the flexible end of second telescopic link is connected with the leading wheel, be formed with the connecting seat on the fixed end of second telescopic link, the position that the second telescopic link is in between leading wheel and the connecting seat is cup jointed respectively with the elastic support body of leading wheel, connecting seat looks butt.
Due to the adoption of the technical scheme, the invention has the beneficial effects that:
the invention mainly comprises a traveling bracket, a material storage container and a guide groove with a guide block, so as to pour fluid materials for the steel rail.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
FIG. 1 is a schematic structural diagram of embodiment 1 of the present invention;
FIG. 2 is a schematic view of the guide block and the steel rail in the casting according to embodiment 1 of the present invention;
FIG. 3 is a schematic structural view of a driving mechanism and a gate valve in embodiment 1 of the present invention;
fig. 4 is a schematic structural view of a flow guide groove in embodiment 1 of the present invention.
[ description of specific symbols ]:
10-a walking bracket and 11-a vertical telescopic mechanism;
20-a storage container;
30-guide groove, 31-guide block, 32-crankshaft, 33-material outlet sheet, 34-transverse shaft, 35-screw rod and 36-frame body;
40-steel rail, 41-top groove;
51-hose, 52-valve seat, 53-valve core, 54-hopper, 55-tension spring, 56-valve port;
61-a first link, 62-a second link, 63-a fixed link;
71-a first telescopic rod, 72-a universal wheel;
81-second telescopic rod, 82-guide wheel, 83-compression spring.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present invention, it should be noted that, if the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or the orientations or positional relationships that the products of the present invention are usually placed in when used, the terms are only used for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements indicated must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the appearances of the terms "first," "second," and the like in the description of the present invention are only used for distinguishing between the descriptions and are not intended to indicate or imply relative importance.
Furthermore, the terms "horizontal", "vertical" and the like when used in the description of the present invention do not require that the components be absolutely horizontal or overhanging, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
In the description of the present invention, it should be further noted that unless otherwise explicitly stated or limited, the terms "disposed," "mounted," "connected," and "connected" should be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Example 1
Referring to fig. 1 and fig. 2, the fluid material casting trolley provided in this embodiment includes:
the walking support 10 is provided with a walking mechanism on the walking support 10;
the storage container 20 is used for storing fluid materials, and a discharge hole is formed in the bottom of the storage container 20; the storage container 20 is mounted on the walking bracket 10;
the guide groove 30 is connected with the walking bracket 10, a feeding port is formed at the top of the guide groove 30, a discharging port is formed at the bottom of the guide groove 30, the feeding port of the guide groove 30 is communicated with the discharging port of the storage container 20, and the discharging port of the guide groove 30 is used for pouring fluid materials to the steel rail 40; the guide groove 30 is connected with a guide block 31, the guide block 31 is provided with an embedding part which is embedded in the top groove 41 of the steel rail 40 in a sliding way, and the guide block 31 and the guide groove 30 are fixed in relative positions in the left and right directions of the steel rail 40.
In the use process of the present embodiment, the traveling carriage 10 is mainly used for traveling on a track slab along the extending direction of a track groove (a rail 40 to be poured with a polymer material is arranged in the track groove, the rail 40 extends in the same direction as the track groove), the storage container 20 is used for storing the polymer material in a fluid form, and the diversion trench 30 is used for guiding and discharging the fluid material in the storage container 20 into the track groove along with the movement of the traveling carriage 10.
The embedded part of the guide block 31 is embedded in the top groove 41 of the steel rail 40 in a sliding manner, so that the moving direction of the diversion trench 30 can be ensured to be consistent with the extending direction of the steel rail 40, and the consistency of the track forming can be further ensured, wherein the top groove 41 of the steel rail 40 is a part of the embedded track, which is used for the contact and matching of the steel rail 40 and the wheel set, and the top groove 41 is a wheel rim groove.
As a preferred embodiment, in this embodiment, the diversion trench 30 is hinged to the traveling bracket 10, and a rotation plane between the diversion trench 30 and the traveling bracket 10 is perpendicular to the extending direction of the steel rail 40; this structure makes it possible to: when the traveling bracket 10 and the rail 40 are displaced in the left-right direction, the guide groove 30 can be rotated to maintain the original position with the rail 40. As will be appreciated by those skilled in the art: the track curve radius suitable for this embodiment is large, and the guide groove 30 and the steel rail 40 can be ensured to approximately keep the original position through the relative rotation of a small amplitude between the guide groove 30 and the traveling bracket 10, and the discharge port of the guide groove 30 is not separated out of the track groove.
In this embodiment, a crankshaft 32 is fixedly connected to the guiding groove 30, and the crankshaft 32 is rotationally matched with the traveling bracket 10; meanwhile, more specifically, in the present embodiment, the guide channel 30 is fixedly provided with a transverse shaft 34 having an axis extending transversely to the rail 40, the guide block 31 is rotatably engaged with the transverse shaft 34, and a flange for limiting the movement of the guide block 31 relative to the guide channel 30 toward the left and right sides of the rail 40 is formed on the transverse shaft 34.
In addition, in this embodiment, the traveling carriage is further provided with a vertical telescopic mechanism 11 for fine adjustment, and the rotational connection position of the crankshaft 32 and the traveling carriage 10 is located above the telescopic end of the vertical telescopic mechanism 11, so that an operator can conveniently perform vertical fine adjustment on the position of the guide block 31 in the initial implementation stage, and ensure that the embedded part can be embedded into the top groove 41 of the steel rail 40.
In the preferred embodiment, the storage container 20 is connected to the diversion trench 30 through a switch valve mechanism, which can selectively open or close the communication between the storage container 20 and the diversion trench 30, and the operator can select the corresponding switch valve mechanism from the prior art.
However, the fluid material used for the embedded track has special characteristics and is not suitable for directly contacting with structures such as valves.
Therefore, referring to fig. 3, as a preferred embodiment, in the present embodiment, the switch mechanism includes:
a gate valve and a hose 51 for connecting the discharge port of the storage container 20;
the gate valve comprises a valve seat 52 and a valve core 53, wherein the valve seat 52 is provided with a valve port for the hose 51 to penetrate through, and the valve core 53 is in sliding fit with the valve seat 52; the valve core 53 can slide relative to the valve seat 52 to selectively press the part of the hose 51 penetrating into the valve port to close the hose 51 or release the part of the hose 51 penetrating into the valve port to open the hose 51. This structure can effectively prevent the valve seat 52 and the valve element 53 from directly contacting the fluid material.
In this embodiment, the switching valve mechanism further includes a self-locking member that applies an elastic force to the valve body 53, and the elastic force applied to the valve body 53 by the self-locking member has a tendency to press the portion of the valve body 53 into which the hose 51 is inserted. More specifically, in the embodiment, the self-locking member is a tension spring 55, and the practitioner may select another elastic member (e.g., a tie bar) to replace the self-locking member.
More specifically, in this embodiment, the switch valve mechanism further includes a hopper 54, the hopper 54 is fixedly connected to the valve seat 52, the hose 51 is communicated with the hopper 54 after passing through the valve port, and the discharge port at the bottom of the hopper 54 is communicated with the feed port of the diversion trench 30. In addition, in the present embodiment, the end of the hose 51 is fixed to the hopper 54 after passing through the valve port.
In addition, in the present embodiment, a driving mechanism for driving the valve plug 53 to slide relative to the valve seat 52 is further included, and the driving mechanism includes a first connecting rod 61, a second connecting rod 62 and a fixing rod 63; one end of the first connecting rod 61 is hinged with the valve core 53, and the other end of the first connecting rod is hinged with the second connecting rod 62; the second link 62 is hinged to one end of the fixing rod 63, the valve seat 52 is fixed to the other end of the fixing rod 63, and the first link 61, the second link 62, the valve seat 52 and the valve core 53 form a link slider mechanism.
When on-off of the switch valve mechanism needs to be controlled, an operator can use the second connecting rod 62 as a driving rod to rotate the second connecting rod 62, so that the first connecting rod 61 is driven to rotate; the rotation of the first link 61 drives the valve core 53 to slide relative to the valve seat 52, so as to control the on-off of the switch valve mechanism.
Referring to fig. 4, in the present embodiment, the guiding gutter 30 has two sets of discharging portions, each set of discharging portion includes two discharging sheets 33 arranged in a V shape, the top of the cavity formed between the two discharging sheets 33 constitutes the feeding port of the guiding gutter 30, and the bottom of the cavity formed between the two discharging sheets 33 is located right above the outer side of the steel rail 40, i.e., the discharging port of the guiding gutter 30.
That is, in the present embodiment, the guiding gutter 30 has two feeding ports and two discharging ports, and the guiding block 31 is located between the two discharging ports in the left-right direction, and the two discharging ports respectively pour the fluid material to both sides of the steel rail 40.
Referring to fig. 2 and 4, the material discharging sheets 33 of the two groups of material discharging portions close to each other are fixed on the crankshaft 32, meanwhile, the guiding gutter 30 further includes a frame 36, each group of material discharging portions further includes a screw 35, the material discharging sheets 33 of the two groups of material discharging portions fixed with the crankshaft 32 are fixed with the frame 36, and the other two material discharging sheets 33 are hinged with the frame 36; the screw rod 36 is provided with a first thread section and a second thread section which are in positive and negative rotation directions; in each group of discharging parts, the bottoms of the discharging pieces 33 on the two sides are respectively screwed with the first thread section and the second thread section, so that an operator can adjust the distance between the bottoms of the discharging pieces 33 on the two sides by rotating the screw rod 36, and further adjust the size of the discharging hole at the bottom of the diversion trench 30.
In this embodiment, the position between the two ends of the fixing rod 63 is hinged to the traveling bracket 10, so that the fixing rod 63, the valve seat 52, and the hopper 54 which are fixedly connected together can swing towards the left and right sides of the extending direction of the steel rail 40 relative to the traveling bracket 10, and thus, an operator can adjust the position of the hopper 54 according to the specific flow speed and the specific discharge capacity of the fluid material in the diversion trench 30, and further adjust the flow rates of the two discharge ports of the diversion trench 30.
Regarding the running gear on the running support 10, in this embodiment, the running gear includes a plurality of first telescopic links 71 and universal wheels 72 corresponding to the number of the first telescopic links 71, the bottom of the first telescopic links 71 constitutes the telescopic end thereof and the top thereof constitutes the fixed end thereof, the plurality of first telescopic links 71 are respectively disposed on the left and right sides of the running support 10, the fixed end of the first telescopic links 71 is connected with the running support 10, and the universal wheels 72 are connected to the telescopic end of the corresponding first telescopic links 71. The first telescopic rod 71 can adjust the height of the traveling support 10 by stretching and retracting, and the universal wheels 72 can facilitate the guiding of the traveling mechanism.
In addition, in order to facilitate the traveling support 10 to move along the steel rail 40, in this embodiment, at least two sets of guiding assemblies respectively disposed on the front and rear sides of the traveling support 10 are further connected to the traveling support 10, each guiding assembly includes a second telescopic rod 81 and a guiding wheel 82 connected to a telescopic end of the second telescopic rod 81, the guiding wheels 82 are used for being connected to the top groove 41 of the steel rail 40 in a rolling manner, the telescopic end of the second telescopic rod 81 is connected to the guiding wheel 82, a connecting seat is formed at a fixed end of the second telescopic rod 81, and an elastic supporting body respectively abutted against the guiding wheel 82 and the connecting seat is sleeved on a portion of the second telescopic rod 81 between the guiding wheel 82 and the connecting seat. In this embodiment, the elastic support is a compression spring 83.
It will be appreciated that the resilient support provides a downward force on the guide wheel 82 to securely roll into the top groove 41 of the rail 40 to guide the traveling direction of the undercarriage 10. Meanwhile, the elastic support body also prevents the guide wheel 82 and the second telescopic rod 81 from being subjected to a large load of the whole vehicle. In this embodiment, the number of the guiding components is two, and the guiding components are respectively disposed at the front and rear sides of the walking frame 10, which mainly considers that: in the curved section of the track where the undercarriage 10 needs to be backed up, the apparatus can easily be backed out of the track if the guide wheels 82 are not present behind.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A fluid material casting trolley is characterized by comprising:
the walking bracket is provided with a walking mechanism;
the storage container is used for storing fluid materials, and a discharge hole is formed in the bottom of the storage container; the material storage container is arranged on the walking bracket;
the guide groove is movably connected with the walking bracket, a feeding port is formed at the top of the guide groove, a discharging port is formed at the bottom of the guide groove, the feeding port of the guide groove is communicated with the discharging port of the storage container, and the discharging port of the guide groove is used for pouring fluid materials to the steel rail; the guide groove is connected with a guide block, the guide block is provided with an embedding part which is embedded in the steel rail top groove in a sliding mode, and the guide block and the guide groove are fixed in relative positions in the direction of the left side and the right side of the steel rail.
2. The fluid material casting trolley according to claim 1, wherein the diversion trench is hinged to the traveling support, and a rotation plane between the diversion trench and the traveling support is perpendicular to an extending direction of the steel rail; the guide groove is fixedly provided with a cross shaft with an axis extending along the transverse direction of the steel rail, and the guide block is in running fit with the cross shaft.
3. The fluid material casting trolley according to claim 1, wherein the storage container is connected with the diversion trench through a switch valve mechanism, and the switch valve mechanism can selectively open or cut off the communication between the storage container and the diversion trench.
4. The casting trolley for fluid materials as claimed in claim 3,
the switching valve mechanism comprises a gate valve and a hose for connecting a discharge hole of the material storage container;
the gate valve comprises a valve seat and a valve core, the valve seat is provided with a valve port for the hose to penetrate through, and the valve core is in sliding fit with the valve seat; the valve core can slide relative to the valve seat to selectively press the part of the hose penetrating into the valve port to close the hose or release the part of the hose penetrating into the valve port to open the hose.
5. The fluid material casting trolley as claimed in claim 4, wherein the switch valve mechanism further comprises a hopper, the hopper is fixedly connected with the valve seat, the hose is communicated with the hopper after passing through the valve port, and the discharge port at the bottom of the hopper is communicated with the feed port of the diversion trench.
6. The casting trolley for fluid materials as claimed in claim 4, wherein the switch valve mechanism further comprises a self-locking member for applying a resilient force to the valve core, the resilient force applied by the self-locking member to the valve core causing the valve core to have a tendency to press the hose into the valve port.
7. The fluid material casting trolley according to claim 4, further comprising a driving mechanism for driving the valve element to slide relative to the valve seat, wherein the driving mechanism comprises a first connecting rod, a second connecting rod and a fixing rod; one end of the first connecting rod is hinged with the valve core, and the other end of the first connecting rod is hinged with the second connecting rod; the second connecting rod is hinged with one end of the fixed rod, the valve seat is fixed at the other end of the fixed rod, and the first connecting rod, the second connecting rod, the valve seat and the valve core form a connecting rod slider mechanism.
8. The casting trolley for fluid materials as claimed in claim 7, wherein the portion between the two ends of the fixed rod is hinged to the traveling carriage, so that the fixed rod, the valve seat and the hopper which are fixedly connected together can swing towards the left and right relative to the traveling carriage.
9. The fluid material casting trolley according to claim 1, wherein the traveling mechanism comprises a plurality of first telescopic rods and universal wheels corresponding to the number of the first telescopic rods, the bottom ends of the first telescopic rods form telescopic ends, the top ends of the first telescopic rods form fixed ends, the plurality of first telescopic rods are respectively arranged at the left side and the right side of the traveling support, the fixed ends of the first telescopic rods are connected with the traveling support, and the universal wheels are connected to the telescopic ends of the corresponding first telescopic rods.
10. The fluid material pouring trolley according to claim 1, wherein the traveling support is further connected with at least two sets of guide assemblies respectively disposed at the front and rear sides of the traveling support, the guide assemblies include a second telescopic rod and a guide wheel connected to a telescopic end of the second telescopic rod, the guide wheel is configured to be connected to a top groove of the steel rail in a rolling manner, the telescopic end of the second telescopic rod is connected with the guide wheel, a connecting seat is formed at a fixed end of the second telescopic rod, and an elastic support body respectively abutting against the guide wheel and the connecting seat is sleeved on a portion of the second telescopic rod between the guide wheel and the connecting seat.
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| CN202011553373.3A CN112761034B (en) | 2020-12-24 | 2020-12-24 | Fluid material pouring trolley |
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| CN202011553373.3A CN112761034B (en) | 2020-12-24 | 2020-12-24 | Fluid material pouring trolley |
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| CN112761034B CN112761034B (en) | 2022-08-09 |
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| CN112761034B (en) | 2022-08-09 |
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