CN203394064U - Conveniently-detached hopper filter screen and concrete pump truck with filter screen - Google Patents
Conveniently-detached hopper filter screen and concrete pump truck with filter screen Download PDFInfo
- Publication number
- CN203394064U CN203394064U CN201320384318.5U CN201320384318U CN203394064U CN 203394064 U CN203394064 U CN 203394064U CN 201320384318 U CN201320384318 U CN 201320384318U CN 203394064 U CN203394064 U CN 203394064U
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- China
- Prior art keywords
- filter screen
- pin shaft
- hopper
- outlet
- hopper filter
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Abstract
The utility model relates to a conveniently-detached hopper filter screen and a concrete pump truck with the filter screen. The hopper filter screen comprises a pin shaft seat at least partially in the shape of a Chinese character of Ao (concave), and a pin shaft, wherein the pin shaft is clamped in the pin shaft seat in a fitting manner; the center of the cross section of the pin shaft seat is circular, the side part of the pin shaft seat is further provided with an outlet which is communicated with the circular center of the pin shaft seat, the inner diameter of the outlet is smaller than the diameter of the pin shaft, at least two machining surfaces are formed on the pin shaft, and the distance between the two machining surfaces is smaller than the inner diameter of the outlet. According to the conveniently-detached hopper filter screen and the concrete pump truck with the filter screen, which are disclosed by the utility model, the diameter of the pin shaft is larger than the inner diameter of the outlet of the pin shaft seat, and the distance between the two machining surfaces of the pin shaft is smaller than the inner diameter of the outlet of the pin shaft seat, so that the position of the pin shaft can be limited through the change of angles between the pin shaft seat and the two machining surfaces of the pin shaft; therefore the technical defect that the fixation and the convenient detachment of the hopper filter screen cannot be realized at the same time in the prior art is overcome, and the conveniently-detached hopper filter screen and the concrete pump truck with the filter screen have the characteristics of convenience in operation, operation friendliness and the like.
Description
Technical field
The utility model relates to a kind of concrete mixer hopper filter structure, particularly relates to a kind of hopper filter screen of easy disassembly and has the concrete mixer of this filter screen.
Background technology
Concrete mixer hopper filter screen is generally positioned at the top of hopper, is in the top of hopper inner chamber, for filtering out excessive concrete block.The moving situation of hopper filter screen, depends primarily on bearing pin on hopper filter screen with respect to the moving situation of the axis pin base on hopper.If bearing pin is limited in axis pin base, bearing pin is merely able to around an axle upset; If bearing pin departs from axis pin base, whole hopper filter screen is just removed.Generally, hopper filter screen only need to be around a fixing axis upset; But sometimes, for the convenient hopper that cleans, remove the inner remaining concrete of hopper, often need hopper filter screen to pull down.This just requires hopper filter screen in work, not pulled down easily by mistake, can, in needs dismounting, can pull down easily again.
The scheme majority of prior art is take the change of banking pin shaft position as main axis pin base (as shown in Figure 1) and take filter screen for convenience detach as main axis pin base (as shown in Figures 2 and 3).
Fig. 1 shows take the change of banking pin shaft position as main axis pin base, although this axis pin base 11 can guarantee that bearing pin 12 can not move radially under normal working condition, hopper filter screen can not be pulled out from axis pin base 11 easily.But, when needs are dismantled hopper filter screen, just need particular tool (as: spanner etc.), it to be dismantled, this makes troubles to user's actual use.
Fig. 2 and Fig. 3 show take hopper filter screen for convenience detach and is main axis pin base, although corresponding axis pin base 21 and 31 can be when user need to dismantle hopper filter screen, without any need for instrument, directly detachable; But in normally stirring the process of filter screen, hopper filter screen is easily pulled out axis pin base 22 and 32 by user, can bring inconvenience to user equally like this.
According to above-mentioned technical scheme, both required bearing pin not pulled out easily axis pin base under normal circumstances, require again, when needs are pulled down hopper filter screen, can pull down easily, seem the problem of a contradiction.In the prior art, the banking pin shaft position of take change is that main fastening devices and the filter screen for convenience detach of take are main fastening devices, has all just met requirement on the one hand and has ignored requirement on the other hand, so all to user, has brought inconvenience.
Utility model content
The purpose of this utility model is to propose a kind of bearing pin that can make not pulled out easily under normal circumstances axis pin base, and the while can also meet the hopper filter screen of the easy disassembly that can realize easily disassembling section when needs are pulled down hopper filter screen and have the concrete mixer of this filter screen.
For achieving the above object, the utility model provides a kind of hopper filter screen of easy disassembly, axis pin base and the adaptive bearing pin that snaps in described axis pin base of the type that comprises that at least part is " recessed ", the cross section middle part sidepiece rounded and axis pin base of described axis pin base is also provided with the outlet being connected with described rounded middle part, the internal diameter of described outlet is less than the diameter of described bearing pin, and, on described bearing pin, offer at least two machined surfaces, the distance between described machined surface is less than the internal diameter of described outlet.
Preferably, described machined surface is plane structure.
Preferably, the plane structure for being parallel to each other between described two machined surfaces.
Preferably, the activity that is connected to buckle-type between described bearing pin and described axis pin base is connected.
Preferably, during dismounting hopper filter screen, described bearing pin rotates at described axis pin base middle part, and described two machined surfaces and described outlet are parallel to each other.
Preferably, the both sides of described outlet are also the plane structure being parallel to each other.
Another object of the present utility model is to provide a kind of concrete mixer, and described concrete mixer comprises above-mentioned hopper filter screen.
Based on technique scheme, the utility model has the advantages that:
Pin diameter of the present utility model is greater than the internal diameter of axis pin base outlet, and on bearing pin, two machined surface distances are less than the internal diameter that axis pin base exports.Like this by the variation of angle between two machined surfaces on axis pin base and bearing pin, just can banking pin shaft position.Therefore, the utility model has overcome prior art to be difficult to realize to the technical contradiction between hopper filter screen fixing and for convenience detach, has use, the feature such as user-friendly for operation.
Accompanying drawing explanation
Accompanying drawing described herein is used to provide further understanding of the present utility model, forms the application's a part, and schematic description and description of the present utility model is used for explaining the utility model, does not form improper restriction of the present utility model.In the accompanying drawings:
Fig. 1 is a kind of structural representation of prior art;
Fig. 2 is the structural representation of another kind of prior art;
Fig. 3 is the structural representation of another prior art;
Fig. 4 is structural representation of the present utility model;
Fig. 5 is the schematic diagram of a kind of duty of the utility model;
Fig. 6 is the schematic diagram of the another kind of duty of the utility model;
Fig. 7 is the schematic diagram at another visual angle of structure shown in Fig. 4;
Fig. 8 is the schematic diagram of another duty of the utility model;
Fig. 9 is the schematic diagram that the utility model filter screen is removed state.
The specific embodiment
Below by drawings and Examples, the technical solution of the utility model is described in further detail.
Referring to Fig. 4～Fig. 9, the preferred embodiment of the hopper filter screen of a kind of easy disassembly shown in it.
Generally as shown in Figure 9, the axis pin base 41(of type that described hopper filter screen comprises that at least part is " recessed " is as shown in Figure 5 and Figure 6) and the adaptive bearing pin 42(that snaps in described axis pin base 41 as shown in Fig. 4 and Fig. 7), the cross section middle part sidepiece rounded and axis pin base 41 of described axis pin base 41 is also provided with the outlet 43 being connected with described rounded middle part, the internal diameter L of described outlet 43 is less than the diameter of phi of described bearing pin 42, as shown in Figure 5, and, on described bearing pin 42, offer at least two machined surfaces 44, distance L between described machined surface 44 ' be less than the internal diameter L of described outlet 43, as shown in Figure 8.
Referring to Fig. 7, preferably, described machined surface 44 is plane structure.Further, referring to Fig. 8, the plane structure for being parallel to each other between described two machined surfaces 44.
The activity that is connected to buckle-type between bearing pin 42 described in the utility model and described axis pin base 41 is connected.Thus, when dismounting hopper filter screen, described bearing pin 42 rotates at described axis pin base 41 middle parts, and described two machined surfaces 44 are parallel to each other with described outlet 43, thereby can allow two machined surfaces that are parallel to each other 44 of bearing pin 42 by exporting 43 dismountings that realize hopper filter screen.
Referring to Fig. 5 and Fig. 6, preferably, described outlet 43 both sides are the plane structure for being parallel to each other also, facilitates thus two machined surfaces that are parallel to each other 44 sticking into and taking out in outlet 43.
Another object of the present utility model is for providing a kind of concrete mixer, and this concrete mixer comprises above-mentioned hopper filter screen.
Operating principle of the present utility model and the course of work are:
That is: when 42 liang of machined surfaces 44 of outlet 43 planes and bearing pin of axis pin base 41 are parallel, bearing pin 42 can be pulled out in axis pin base 41, and now hopper filter screen can be pulled down.
When 44 one-tenth all the other angles of 42 liang of machined surfaces of outlet 43 planes and bearing pin of axis pin base 41,42 of bearing pins can be limited in axis pin base 41, now hopper filter screen non-disconnectable under.
Like this, client, when wanting to pull down hopper filter screen, does not need to use any instrument, as long as rotary sieve.And when not wanting to pull down, only however make outlet 43 planes of axis pin base 41 and two machined surfaces 44 of bearing pin 42 parallel, can guarantee that filter screen normally overturns.
Certainly, on bearing pin 42, also can offer a plurality of machined surfaces 44.
Particularly, the utility model is mainly realized hopper filter screen easy accessibility, can guarantee that hopper filter screen is not pulled down in normal upset by mistake simultaneously, and the bearing pin on filter screen 42 can not be drawn out easily from axis pin base 41.Further setting forth basic scheme of the present utility model is: the utility model mainly comprises bearing pin 42 and the axis pin base 41 of hopper filter screen.
During manufacture, adopt the diameter of phi of bearing pin 42 to be greater than the outlet 43 internal diameter L of axis pin base 41, and the distance L between two machined surfaces 44 on bearing pin 42 ' be less than the outlet 43 internal diameter L of axis pin base 41.When 42 liang of machined surfaces 44 of bearing pin are not parallel to outlet 43 plane of axis pin base 41, because the diameter of phi of bearing pin 42 is greater than the internal diameter L of outlet 43, so hopper filter screen can not be removed; Only when 42 liang of machined surfaces 44 of bearing pin are parallel to outlet 43 plane of axis pin base 41, the distance L between 42 liang of machined surfaces 44 of bearing pin now ' be less than the internal diameter L of axis pin base 41 outlets 43, hopper filter screen can be removed.
Further, known from Fig. 5 and Fig. 8, under the normal rollover states of filter screen, because bearing pin 42 diameter of phi > L, and now bearing pin 42 can not be pulled out in axis pin base 41, and hopper filter screen cannot be pulled down.Under disassembly status, because the distance L between two machined surfaces 44 on bearing pin 42 ' < L, now bearing pin 32 can be pulled out in axis pin base 41, and hopper filter screen can be pulled down.
Finally should be noted that: above embodiment is only in order to illustrate that the technical solution of the utility model is not intended to limit; Although the utility model is had been described in detail with reference to preferred embodiment, those of ordinary skill in the field are to be understood that: still can modify or part technical characterictic is equal to replacement the specific embodiment of the present utility model; And not departing from the spirit of technical solutions of the utility model, it all should be encompassed in the middle of the technical scheme scope that the utility model asks for protection.
Claims (7)
1. the hopper filter screen of an easy disassembly, it is characterized in that: comprise that at least part is " recessed " axis pin base (41) of type and the bearing pin (42) that adaptation snaps in described axis pin base (41), the cross section middle part sidepiece rounded and axis pin base (41) of described axis pin base (41) is also provided with the outlet (43) being connected with described rounded middle part, the internal diameter (L) of described outlet (43) is less than the diameter of described bearing pin (42), and, on described bearing pin (42), offer at least two machined surfaces (44), distance between described machined surface (44) (L ') is less than the internal diameter (L) of described outlet (43).
2. the hopper filter screen of easy disassembly according to claim 1, is characterized in that: described machined surface (44) is plane structure.
3. the hopper filter screen of easy disassembly according to claim 2, is characterized in that: the plane structure for being parallel to each other between described two machined surfaces (44).
4. the hopper filter screen of easy disassembly according to claim 3, is characterized in that: the activity that is connected to buckle-type between described bearing pin (42) and described axis pin base (41) is connected.
5. the hopper filter screen of easy disassembly according to claim 4, is characterized in that: during dismounting hopper filter screen, described bearing pin (42) rotates at described axis pin base (41) middle part, and described two machined surfaces (44) and described outlet (43) are parallel to each other.
6. the hopper filter screen of easy disassembly according to claim 5, is characterized in that: the both sides of described outlet (43) are the plane structure for being parallel to each other also.
7. a concrete mixer, is characterized in that: described concrete mixer comprises the hopper filter screen described in above-mentioned any one claim.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320384318.5U CN203394064U (en) | 2013-06-28 | 2013-06-28 | Conveniently-detached hopper filter screen and concrete pump truck with filter screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320384318.5U CN203394064U (en) | 2013-06-28 | 2013-06-28 | Conveniently-detached hopper filter screen and concrete pump truck with filter screen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203394064U true CN203394064U (en) | 2014-01-15 |
Family
ID=49905604
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320384318.5U Expired - Lifetime CN203394064U (en) | 2013-06-28 | 2013-06-28 | Conveniently-detached hopper filter screen and concrete pump truck with filter screen |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203394064U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108560919A (en) * | 2018-07-02 | 2018-09-21 | 广西广厦环保科技有限公司 | A kind of fence of concrete pump convenient for cleaning |
-
2013
- 2013-06-28 CN CN201320384318.5U patent/CN203394064U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108560919A (en) * | 2018-07-02 | 2018-09-21 | 广西广厦环保科技有限公司 | A kind of fence of concrete pump convenient for cleaning |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140115 |
|
| CX01 | Expiry of patent term |