CN216143507U - Take multistage elevating gear of ejector pin - Google Patents
Take multistage elevating gear of ejector pin Download PDFInfo
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- CN216143507U CN216143507U CN202122060774.1U CN202122060774U CN216143507U CN 216143507 U CN216143507 U CN 216143507U CN 202122060774 U CN202122060774 U CN 202122060774U CN 216143507 U CN216143507 U CN 216143507U
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- ejector rod
- lifting device
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- lifting
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Abstract
The utility model discloses a multistage lifting device with a mandril, which comprises a primary support, a secondary support and a mandril assembly, wherein the primary support is connected with the secondary support through a connecting rod; the ejector rod assembly comprises at least one ejector rod, the ejector rod assembly is arranged on the primary support in a liftable mode, and the ejector rod assembly can be fixed relative to the primary support at one or more height positions of the lifting stroke of the ejector rod assembly. The ejector rod in the device can be lifted, so that the device can be abutted against construction fixing surfaces such as ceilings and the like, and the stability of the multistage lifting device is enhanced; after the stability of the multi-stage lifting device is enhanced, the anti-overturning performance can be greatly improved, and the weight limit of a construction working head on the lifting device can be reduced, so that the selection flexibility of the construction working head is improved; due to the existence of the ejector rod, after the ejector rod is firmly propped against the fixed surface, the multi-stage lifting device can provide a stable vertical reference, and the construction precision can be ensured by the multi-stage lifting device even if the working head is at a higher construction height.
Description
Technical Field
The utility model belongs to the field of construction equipment, and particularly relates to a multistage lifting device with an ejector rod.
Background
In the field of building construction, in order to match the height of a construction surface and take the volume of construction equipment into consideration, the construction equipment is generally required to be provided with a lifting device with a liftable height, and the lifting device carries an operation head to complete construction operation. Wall plastering operation in building construction works is operation which meets the requirement of construction height through a lifting device. However, although the existing liftable building construction equipment can meet the requirement of construction height to a certain extent, when the lifting device is at a higher position, the problem of satisfactory guarantee of construction precision often exists, and when the quality of the operation equipment carried on the lifting device is larger, the safety problems of overturning of the construction equipment and the like can also exist.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the defects of the prior art and provides a multi-stage lifting device with an ejector rod; the ejector rod in the device can be lifted, so that the device can be abutted against construction fixing surfaces such as ceilings and the like, and the stability of the multistage lifting device is enhanced; after the stability of the multi-stage lifting device is enhanced, the anti-overturning performance can be greatly improved, and the weight limit of a construction working head on the lifting device can be reduced, so that the selection flexibility of the construction working head is improved; due to the existence of the ejector rod, after the ejector rod is firmly propped against the fixed surface, the multi-stage lifting device can provide a stable vertical reference, and the construction precision can be ensured by the multi-stage lifting device even if the working head is at a higher construction height.
The utility model provides a multi-stage lifting device with a mandril, which comprises a primary support, a secondary support and a mandril assembly; the secondary support is arranged on the primary support in a liftable mode, a secondary lifting track is arranged on the secondary support, the ejector rod assembly comprises at least one ejector rod, the ejector rod assembly is arranged on the primary support in a liftable mode, and the ejector rod assembly can be fixed on one or more height positions of a lifting stroke of the ejector rod assembly relative to the primary support.
The multistage lifting device can further comprise a three-stage support and a four-stage support, wherein the four-stage support is a more multistage support, and the three-stage support and the four-stage support are both configured into a form capable of lifting and sliding on the previous stage support.
As a preferable scheme of the utility model, the top of the secondary bracket is provided with a mandril hole; the top of the ejector rod assembly penetrates through the ejector rod hole in the top of the secondary support, and a protruding edge with the size larger than that of the ejector rod hole is arranged at the penetrating part. Namely, the top of the ejector rod can not be completely retracted into the secondary support and the primary support, and when the secondary support is lifted, the ejector rod is driven to be lifted.
As a preferred scheme of the present invention, a telescopic assembly is disposed in the top rod of the top rod assembly, however, considering that the longer the telescopic length of the top rod is, the higher the design difficulty and cost is, and the height of the wall surface to be constructed is determined according to a specific construction scenario, and is usually unknown at the equipment production stage. Therefore, if the push rod can meet the requirement of extreme construction height only through the flexibility of the push rod, the equipment cost and the design difficulty are greatly increased, and most construction scenes do not need to use the extreme construction height, so that the method is not economical. To overcome this problem, the telescopic assembly is configured such that the jack top has a certain range of telescopic amplitude in the height direction. The certain range is smaller than the height of the common wall surface, for example, the expansion and contraction amplitude of 5-50cm is generally needed, preferably, in order to further reduce the design difficulty, the expansion and contraction amplitude of 5-30cm can be needed, and even 10-20cm is needed. Typically, and without limitation, the maximum telescopic length of the telescopic assembly is designed to be 5cm, 10cm, 15cm, 20cm, 25cm, 30cm, 40cm or 50 cm. The telescopic component is a push rod arranged in the ejector rod, and the length of the ejector rod can be changed by the push rod. The push rod can be driven by an electric motor, a hydraulic motor or a pneumatic motor, and any drive assembly capable of changing the length of the push rod is suitable for the utility model.
Preferably, the primary support is provided with a plurality of jacks in the height direction; the ejector rod assembly comprises a bolt seat which is fixedly connected with the ejector rod, a bolt hole is formed in the bolt seat, and the ejector rod assembly and the primary support can be fixed by penetrating a bolt through a jack on the primary support and the bolt hole on the bolt seat. The number and the arrangement density of the jacks on the primary support can be flexibly set according to requirements; the jacks are arranged in rows in the height direction, one or more rows of jacks can be further arranged according to the requirement, and the number of the pin holes on the pin seat is matched with the number of the rows.
Preferably, the ejector rod assembly comprises a plurality of ejector rods which are arranged in parallel, and the pin seat is located at the bottom of each ejector rod and is fixedly connected with each ejector rod.
Preferably, the multi-stage lifting device further comprises a lifting driving assembly, and the lifting driving assembly is a steel wire traction mechanism. The top of the primary support is provided with a pulley, and a steel wire of the steel wire traction mechanism passes through the pulley and drives the secondary support to lift relative to the primary lifting frame through the retraction and release of the steel wire.
In some preferred embodiments, the top of the primary support is provided with a pulley, and the secondary support further comprises a top pulley positioned at the top of the secondary support and a bottom pulley positioned at the bottom of the secondary support; one end of a steel wire of the steel wire traction mechanism passes through the top pulley of the primary support, then sequentially passes through the bottom pulley and the top pulley, and then serves as a connecting end to be connected with a working head or a working head mounting seat mounted on the secondary lifting rail.
In some preferred embodiments, the top of the ejector rod is provided with an elastic contact assembly, so that the ejector rod has certain buffering when contacting with the fixed surface, and the ejector rod or the fixed surface is prevented from being damaged. The elastic contact assembly can be a spring arranged inside the top end of the ejector rod, preferably, a pressure sensor can be further arranged at the top end of the ejector rod and used for detecting the fixing condition of the top surface and the fixing surface, and when the elastic contact assembly reaches a set pressure range, the telescopic assembly is timely controlled to stop extending.
Preferably, the second-level lifting track is provided with a lifting installation part, the lifting installation part is arranged on the second-level bracket in a lifting manner, and the lifting installation part is used as a working head installation seat to be connected with the steel wire. Furthermore, the lifting installation part can be a slide block used for connecting an external working head.
Preferably, a limiting mechanism is arranged at the top of the stroke of the secondary lifting track, and the limiting mechanism can prevent a movable component mounted on the secondary lifting track from being separated from the secondary lifting track from the top.
Drawings
Fig. 1 is a schematic structural diagram of a multi-stage lifting device with a top rod according to an embodiment of the present invention;
FIG. 2 is a side view of the multi-stage lift;
FIG. 3 is a schematic view of a jack on the primary support;
FIG. 4 is a schematic view of the ejector pin and the secondary bracket;
FIG. 5 is a schematic structural view of the ram assembly;
FIG. 6 is a schematic diagram of the operation of the lift pins of the multi-stage lifting device;
FIG. 7 is a schematic front view of state c of FIG. 6;
fig. 8 is a schematic working diagram of the construction robot according to the embodiment.
In the figure, a primary support 1, a secondary support 2, a push rod hole 20, a limiting mechanism 21, a secondary lifting track 22, a push rod assembly 3, a convex edge 30, a first push rod 31, a second push rod 32, a bolt seat 33, a bolt hole 34, a telescopic assembly 35, a top pulley 41, a bottom pulley 42, a primary support pulley 43, a fixing pin 5 and a jack 6.
Detailed Description
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 only a part of the embodiments of the present invention, and not all of the embodiments. 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 all the directional indicators (such as up, down, left, right, front, and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the movement situation, etc. in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indicator is changed accordingly.
In addition, the descriptions related to "first", "second", etc. in the present invention are only for descriptive purposes and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated.
In the present invention, unless otherwise expressly stated or limited, the terms "connected," "secured," and the like are to be construed broadly, and for example, "secured" may be a fixed connection, a removable connection, or an integral part; the connection can be mechanical connection, electrical connection, physical connection or wireless communication connection; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
As shown in fig. 1 and 2, an embodiment of the present invention provides a multi-stage lifting device with a push rod, which includes a primary support 1, a secondary support 2, and a push rod assembly 3; the secondary support 2 is arranged on the primary support 1 in a liftable mode, the ejector rod assembly 3 comprises at least one ejector rod, the ejector rod assembly 3 is arranged on the primary support 1 in a liftable mode, and the ejector rod assembly 3 can be fixed relative to the primary support 1 at one or more height positions of the lifting stroke of the secondary lifting track. The ejector rod in the device can be lifted, so that the device can be abutted against construction fixing surfaces such as ceilings and the like, and the stability of the multistage lifting device is enhanced; after the stability of the multi-stage lifting device is enhanced, the anti-overturning performance can be greatly improved, and the weight limit of a construction working head on the lifting device can be reduced, so that the selection flexibility of the construction working head is improved; due to the existence of the ejector rod, after the ejector rod is firmly propped against the fixed surface, the multi-stage lifting device can provide a stable vertical reference, and the construction precision can be ensured by the multi-stage lifting device even if the working head is at a higher construction height. In practical application, the external working head can be directly pressed on the secondary lifting track.
In some preferred embodiments, as shown in fig. 3, the top of the secondary support 2 has a jack rod hole 20; the top of the ejector rod component penetrates through the ejector rod hole 20 at the top of the secondary support, and a protruding edge 30 with the size larger than that of the ejector rod hole is arranged at the penetrating part. The top of the ejector rod can not be completely retracted into the secondary support 2 and the primary support 1, the top of the stroke of the secondary lifting track 22 is provided with a limiting mechanism 21, the limiting mechanism 21 can prevent the working head from separating from the secondary support and can enable the working head to drive the secondary support to lift relative to the primary support; and when the secondary support 2 is lifted, the ejector rod is driven to lift together.
As shown in fig. 4 and 5, in some embodiments, the primary support 1 is provided with a plurality of insertion holes 6 in the height direction. In this embodiment, the bottom of the primary support 1 is provided with two initial position jacks, when the ejector rod is in a non-working state, the latch hole of the ejector rod assembly and the initial position jack are aligned, and the ejector rod assembly and the primary support are locked by the fixing pin 5. The size of the fixing pin is slightly smaller than that of the jack.
In some embodiments, the ram assembly comprises: the first ejector rod 31 and the second ejector rod 32 are vertically arranged; and the bolt seats 33 are positioned at the bottoms of the two ejector rods and fixedly connected with the ejector rods, bolt holes 34 are formed in the bolt seats, and the ejector rod assembly and the primary support can be fixed by penetrating bolts through the jacks on the primary support and the bolt holes on the bolt seats.
A telescopic assembly 35 is arranged in the top rod of the top rod assembly, and the telescopic assembly is configured to enable the top of the top rod to have a certain range of telescopic amplitude in the height direction. In this embodiment, the push rod has a maximum extension range of about 30cm, and the push rod is selected to be an electric push rod.
In a preferred embodiment, the top of the ejector rod is provided with a spring, so that the ejector rod has certain buffering when contacting with the fixed surface, and the ejector rod or the fixed surface is prevented from being damaged. A pressure sensor is further arranged for indicating the fixing condition of the top surface and the fixing surface, and when the spring reaches a set pressure range, the telescopic assembly stops extending.
In a preferred embodiment, the multi-stage lifting device further comprises a lifting driving assembly, and the lifting driving assembly is a steel wire traction mechanism.
As shown in fig. 2, the primary support is provided with a primary support pulley 43 at the top, and the secondary support further comprises a top pulley 41 at the top of the secondary support and a bottom pulley 42 at the bottom of the secondary support. In this embodiment, the steel wire drives the support to move up and down, and after passing through the top pulley 43 of the primary support, the steel wire passes through the bottom pulley 42 and the top pulley 41 in sequence and then is connected with the lifting installation part or the working head. The embodiment selects the wire reel as the lifting driving component.
In another optional implementation manner of the utility model, a lifting installation part is arranged on the secondary lifting track, the lifting installation part can be a slide block used for connecting an external working head, the lifting installation part is arranged on the secondary support in a lifting manner, the lifting installation part is connected with a steel wire and can lift along the secondary lifting track under the traction of the steel wire, and when the lifting installation part reaches the top end of a lifting stroke, the secondary support can be driven to lift relative to the primary support under the action of a limiting mechanism; and when the secondary support is lifted, the ejector rod is driven to lift together.
The embodiment of the utility model also provides a building construction robot, which comprises a construction working head and the multistage lifting device with the ejector rod, wherein the construction working head is arranged on the secondary lifting track. The working head is a working device in the field of building construction, and can be a spraying working head, a plastering working head, a polishing working head and the like.
As shown in fig. 6 to 8, the present invention provides a method for operating a lift pin of the multi-stage lifting device with a lift pin, which comprises:
the initial state is shown in fig. 6a, and the locking relationship between the primary bracket 1 and the mandril assembly 3 is unlocked;
as shown in fig. 6b, the lifting driving assembly (steel wire reel) retracts the steel wire, and the working head rises along the secondary lifting track along with the retraction of the steel wire, wherein the working head can be directly arranged on the secondary lifting track, and the working head is directly connected with the steel wire at the moment, or a lifting installation part is arranged on the secondary lifting track, and the working head is arranged on the lifting installation part, and the lifting installation part is connected with the steel wire at the moment;
as shown in fig. 6c, when the working head or the liftable mounting portion rises to the position of the limiting mechanism, the secondary bracket 2 starts to be driven to lift relative to the primary bracket 1; at the moment, the size of the top convex edge 30 of the ejector rod is larger than that of the ejector rod hole 20 at the top of the secondary support 2, so that the ejector rod is driven by the secondary support 2 to be lifted together; as shown in fig. 7, when the jack is lifted to a desired height, the positional relationship between the primary bracket 1 and the jack assembly 3 is locked by the fixing pin 5; at this time, the distance from the top of the ejector rod to the fixing surface such as the ceiling lamp is smaller than the telescopic length of the telescopic assembly 35 in the ejector rod.
After the mandrel is fixed, the wire reel can be paid off to return the secondary support 2 and the working head to the initial position, as shown in fig. 6d and 6 e; the entire device can now be moved to the construction site.
As shown in fig. 8a, if the whole device reaches the construction position, the vertical angle of the multi-stage lifting device with the push rod is adjusted, so that the multi-stage lifting device is adjusted to be in a vertical state, and the telescopic component 35 in the push rod can be controlled to extend until the pressure between the top of the push rod and the top fixing surface reaches a set pressure range.
Taking wall plastering as an example, fig. 8 a-8 e show the working process of the multi-stage lifting device of the utility model. The plastering working head is arranged on the lifting installation part, and the whole device pushes the mandril against the ceiling according to the flow shown in figure 6 and the extension of the telescopic component 35. When plastering operation is started, the steel wire rope is contracted, the plastering working head is lifted along the secondary bracket 2, and plastering operation is carried out on the construction surface in the lifting process until the state shown in fig. 8b is reached; after the plastering working head rises to the position of the limiting mechanism, the whole formed by the plastering working head and the secondary bracket 2 starts to be lifted relative to the primary bracket 1, the maximum lifting height can reach the top of the construction surface, and as shown in fig. 8c, plastering operation is continuously carried out on the construction surface in the lifting process; when the working head needs to descend when finishing single-pass operation, the steel wire reel is wound, the whole formed by the plastering working head and the secondary bracket 2 descends relative to the primary bracket 1 firstly, and after the secondary bracket 2 descends to the lowest position, the plastering working head begins to descend relative to the secondary bracket 2 until the initial state is recovered, as shown in fig. 8 e. In the whole plastering operation process, the ejector rod always pushes against the fixed surface, the stability of the device is greatly enhanced, the multi-stage lifting device provides a stable vertical reference, and the construction precision can be ensured by the multi-stage lifting device even if the working head is at a higher construction height.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (10)
1. A multi-stage lifting device with a mandril is characterized by comprising a primary support, a secondary support and a mandril assembly; the secondary support is arranged on the primary support in a liftable mode, a secondary lifting track is arranged on the secondary support, the ejector rod assembly comprises at least one ejector rod, the ejector rod assembly is arranged on the primary support in a liftable mode, and the ejector rod assembly can be fixed on one or more height positions of a lifting stroke of the ejector rod assembly relative to the primary support.
2. The multi-stage lift apparatus of claim 1, wherein a telescoping assembly is disposed within the ram of the ram assembly, the telescoping assembly configured to provide a range of telescoping of the ram top in the height direction.
3. The multi-stage lifting device according to claim 1 or 2, wherein the secondary support has a jack rod hole at the top; the top of the ejector rod assembly penetrates through the ejector rod hole in the top of the secondary support, and a protruding edge with the size larger than that of the ejector rod hole is arranged at the penetrating part.
4. The multi-stage lifting device according to claim 1, wherein the top of the ram is provided with a resilient contact member.
5. The multi-stage lifting device according to claim 1, wherein the primary support is provided with a plurality of jacks in a height direction;
the ejector pin subassembly includes:
one or more ejector rods, the ejector rods are vertically arranged; and
and the pin seat is fixedly connected with the ejector rod and is provided with a pin hole, and the ejector rod assembly and the primary support can be fixed by penetrating a pin through the jack on the primary support and the pin hole on the pin seat.
6. The multi-stage lifting device of claim 5, wherein the ram assembly comprises a plurality of rams arranged in parallel with one another, and the pin seat is located at the bottom of the ram and is fixedly connected to each ram.
7. The multi-stage lift apparatus of claim 1, further comprising a lift drive assembly, said lift drive assembly being a wire traction mechanism.
8. The multi-stage lifting device according to claim 7, wherein the primary support is provided with a pulley at the top, and the secondary support further comprises a top pulley at the top of the secondary support and a bottom pulley at the bottom of the secondary support; one end of a steel wire of the steel wire traction mechanism passes through the top pulley of the primary support, then sequentially passes through the bottom pulley and the top pulley, and then serves as a connecting end to be connected with a working head or a working head mounting seat mounted on the secondary lifting rail.
9. The multi-stage lifting device according to claim 8, wherein the secondary lifting rail is provided with a lifting installation part, the lifting installation part is arranged on the secondary bracket in a lifting manner, and the lifting installation part is used as a working head installation seat to be connected with the steel wire.
10. The multi-stage lifting device according to claim 1, wherein a stop mechanism is provided at a top position of the stroke of the secondary lifting rail, and the stop mechanism prevents a movable component mounted on the secondary lifting rail from being detached from the top of the secondary lifting rail.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122060774.1U CN216143507U (en) | 2021-08-30 | 2021-08-30 | Take multistage elevating gear of ejector pin |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122060774.1U CN216143507U (en) | 2021-08-30 | 2021-08-30 | Take multistage elevating gear of ejector pin |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216143507U true CN216143507U (en) | 2022-03-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122060774.1U Active CN216143507U (en) | 2021-08-30 | 2021-08-30 | Take multistage elevating gear of ejector pin |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216143507U (en) |
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2021
- 2021-08-30 CN CN202122060774.1U patent/CN216143507U/en active Active
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20221226 Address after: No. 6329, Minzhai Village, Qianxiang Town, Dongyang City, Jinhua City, Zhejiang Province 322100 Patentee after: Shi Fanfang Address before: 311100 Room 302, building 2, No. 1-1, Huayi Road, Yuhang street, Yuhang District, Hangzhou City, Zhejiang Province Patentee before: ZHEJIANG BAISHITONG INTELLIGENT TECHNOLOGY Co.,Ltd. |
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| TR01 | Transfer of patent right |