Flexible push rod for dredging filter grid plate and dredging device

Abstract

The utility model discloses a flexible push rod for dredging a filter grid plate and a dredging device. The flexible push rod used for dredging the filter grid plate comprises a bendable and deformable rod body used for dredging the filter grid plate and an anti-corrosion and wear-resistant rod cap used for guiding the rod body, the rod cap is detachably connected and installed on the rod body, a force bearing step is arranged at the rear end of the rod body, and a guiding face is arranged on the rod cap. The flexible push rod for dredging the filter grid plate and the dredging device can recover after bending deformation, are wear-resistant and corrosion-resistant, and are long in service life.

Description

TECHNICAL FIELD

[0001] The utility model relates to sewage system filter technology field especially, is a kind of flexible push rod and dredging device for dredging filter grate. BACKGROUND

[0002] The filter grate of the front end of sewage system can carry out preliminary filtration to sewage, avoid the blockage caused by the excessive solid sundries into drainage pipeline;Meanwhile, grate can remove larger sundries first before sewage enters subsequent more delicate processing equipment, reduce the burden of subsequent equipment. After long time use, sundries gather near the filter hole on grate, can cause filter hole to be blocked, filter effect is poor, even completely unable to filter situation, thus need artificial regularly to clean up grate, guarantee its filter effect. SUMMARY

[0003] The utility model provides a kind of flexible push rod and dredging device for dredging filter grate to solve the technical problems that the utility model utilizes machinery to clean up filter grate.

[0004] To solve the above problems, the utility model provides a kind of flexible push rod for dredging filter grate, the flexible push rod for dredging filter grate includes the rod body that can be bent and deformed for dredging filter grate and the rod cap of corrosion-resistant wear-resistant for guiding rod body, the rod cap is detachably connected and installed on the rod body, the rear end of the rod body is provided with force step, and the guiding surface is provided on the rod cap.

[0005] Further, the rod body and rod cap are connected by thread.

[0006] Further, the rod cap is provided with tightening plane for being tightened by means of tool.

[0007] Further, the tightening plane is six, and the six tightening planes are sequentially connected and around the rod cap one round.

[0008] Further, filter grate has filter hole, the rod cap includes small diameter section smaller than filter hole diameter, large diameter section adapted to filter hole diameter and transition section connecting small diameter section and large diameter section, the transition section is conical, and the outer side wall of the transition section is guiding surface.

[0009] Further, the rod body is made of wear-resistant material and has certain elasticity.

[0010] Further, the rod body is made of PA66 nylon material.

[0011] Further, the rear end of the rod body is provided with force step for increasing contact area.

[0012] Further, the force bearing step is provided with a sealing groove for mounting a sealing ring.

[0013] To solve the above problems, the utility model also provides a dredging device for dredging filter grating, including above described flexible push rod.

[0014] The flexible push rod for dredging filter grating and the dredging device are made of a rod body of bendable and deformable material, a guide surface is arranged on the rod cap, so that the rod body can be inserted into the filter hole through bending and deformation even if there is deviation from the filter hole on the filter grating, and the rod body can rebound and recover after being taken out of the filter grating, with long service life. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is the structure schematic diagram of the preferred implementation of the utility model dredging device for dredging filter grating.

[0016] Figure 2 It is the structure schematic diagram of the utility model dredging device for dredging filter grating when dredging.

[0017] Figure 3 It is the structure schematic diagram of the push rod.

[0018] Figure 4 It is the structure schematic diagram of the rod cap.

[0019] Figure 5 It is the structure schematic diagram of the combined frame.

[0020] Figure 6 It is the sectional view of the push plate slidingly arranged on the combined frame.

[0021] Figure 7 It is the structure schematic diagram of the base support.

[0022] Figure 8 It is the structure schematic diagram of the column and the bottom beam.

[0023] Figure 9 It is the structure schematic diagram of the bottom plate.

[0024] Figure 10 It is the structure schematic diagram of the column.

[0025] Figure 11 It is the structure schematic diagram of the intermediate beam.

[0026] Figure 12 It is the structure schematic diagram of the push plate.

[0027] Figure 13 It is the sectional view of the push plate.

[0028] Figure 14is a schematic view of the cooperation between the push rod, the push plate and the filter grate.

[0029] The meanings of the reference signs in the drawings are as follows:

[0030] The combined rack 1, the base support 10, the intermediate beam 11, the bottom beam 12, the reinforcing beam 13, the column 14, the column body 141, the guide 142, the sliding groove 140, the driver 2, the push plate 3, the plate body 31, the first mounting seat 32, the second mounting seat 33, the reinforcing plate 331, the vertical plate 332, the push rod 4, the rod body 41, the rod cap 42, the small-diameter section 421, the large-diameter section 422, the transition section 423, the tightening plane 4221, the guide surface 4231, the force-bearing step 411, the sealing groove 412, the tightening section 413, the filter grate 5, the filter hole 51, the driving mounting plate 61, the bottom plate 62, the first mounting hole 621, the second mounting hole 622, the first connecting plate 63, the first connecting hole 631, the second connecting plate 64, the second connecting hole 641, the third connecting plate 65, the pulley 7, and the screw rod 9. DETAILED DESCRIPTION

[0031] The utility model will be further described below in combination with the drawings.

[0032] As shown in Figure 1 and Figure 2 The preferred embodiment of the dredging device for the filter grate of the sewage system of the utility model includes a combined rack 1, a driver 2, a push plate 3 and a push rod 4. The driver 2 is detachably mounted on the combined rack 1. The push plate 3 is slidingly arranged on the combined rack 1. The output end of the driver 2 is connected with the push plate 3. The driver 2 is used to drive the push plate 3 so that the push plate 3 can reciprocally move on the combined rack 1. The push rod 4 is detachably mounted on the push plate 3. The push rod 4 is multiple. The push rod 4 is used to insert the filter hole 51 on the filter grate 5 according to the position distribution of the filter hole 51 on the filter grate 5 so as to dredge the filter hole 51. The driver 2 pushes the push plate 3 to move on the combined rack 1. The push plate 3 drives the push rod 4 to move. The push rod 4 is inserted into the filter hole 51 on the filter grate 5, thereby dredging the filter grate 5. The driver 2 adopts a hydraulic cylinder or a pneumatic cylinder. Thus, the unsafe factors such as electric leakage of electric power can be avoided.

[0033] As shown in Figure 3As shown, the push rod 4 comprises a rod body 41 and a rod cap 42 which is detachably mounted on the rod body 41. Specifically, the rod cap 42 is provided with internal threads, and the push rod 4 is provided with a threaded column on which the rod cap 42 is screwed. The rod cap 42 is made of wear-resistant and corrosion-resistant material to prolong the service life of the rod cap 42. The outer wall of the rod cap 42 is provided with tightening planes 4221, and there are six of them, which are connected in sequence and wrap around the rod cap 42, i.e. the tightening planes 4221 are evenly distributed along the axial line of the rod cap 42, so that the rod cap 42 can be easily fastened on the rod body 41 by using a wrench or other tools. The rod cap 42 also has a guide surface 4231 which is inclined, specifically, the front end of the rod cap 42 is a small-diameter section 421 whose diameter is smaller than that of the filter hole 51, so it can be easily inserted into the filter hole 51, the rear end of the rod cap 42 is a large-diameter section 422 which has the same diameter as the filter hole 51, and the middle section of the rod cap 42 is a transition section 423 which connects the small-diameter section 421 and the large-diameter section 422, the transition section 423 is tapered, and the outer wall of the transition section 423 serves as the guide surface 4231, the diameter of the large-diameter section 422 is the same as that of the rod body 41, so that when the rod body 41 deviates from the filter grate 5, the rod body 41 can be guided to be inserted into the filter hole without directly colliding with the filter grate 5 to cause the push rod 4 to bend and fail.

[0034] The rod body 41 is made of wear-resistant material and can be bent and deformed, and can automatically recover after the external force disappears, such as PA66 nylon material, so that the wear resistance of the rod body 41 is very outstanding, and it also has strong chemical corrosion resistance, excellent applicability in sewage environment, and bending strength of about 100-110 MPa, and can rebound and recover after bending to ensure that the rod body 41 can always be centered with the filter hole 51 on the filter grate 5. The rear end of the rod body 41 is inserted into the push plate 3 and fixed by a nut, the rear end of the rod body 41 is provided with a force-bearing step 411 which can increase the contact area with the push plate 3 to improve the ability of the rod body 41 to bear the thrust, and the rear end of the rod body 41 has a tightening section 413 which is hexagonal in shape, i.e. the same structure as the tightening planes 4221 of the rod cap 42, so as to facilitate the disassembly and installation of the push rod 4. The force-bearing step 411 is provided with a sealing groove 412 in which a sealing ring (not shown) is arranged, so that a seal is formed between the push plate 3 and the push rod 4 to effectively prevent the sewage from penetrating and corroding the back of the push plate 3 and the end fastening nut of the push rod 4.

[0035] As Figures 5 to 11As shown, the combined rack 1 comprises base supports 10 and a middle beam 11, the base supports 10 are two and oppositely arranged, the base supports 10 are connected by the middle beam 11, the middle beam 11 is detachably connected with the base supports 10, so that the combined rack 1 can be disassembled for convenient transportation.

[0036] Each base support 10 comprises a bottom beam 12, a reinforcing beam 13 and a column 14, the two ends of each bottom beam 12 are fixed with columns 14, and the middle part between the two columns 14 is connected by the reinforcing beam 13 to improve the strength of the base support 10.

[0037] The bottom beam 12 is provided with a driving mounting plate 61, the driving mounting plate 61 is located in the middle of the bottom beam 12, the driving mounting plates 61 on the two bottom beams 12 are oppositely arranged, the driving mounting plates 61 on the two bottom beams 12 are located between the two bottom beams 12, that is, the two driving mounting plates 61 are adjacent, the two driving mounting plates 61 can be spaced apart or abut against each other, which can be set according to requirements, in the embodiment, the two driving mounting plates 61 are spaced apart, the driving mounting plate 61 is used for mounting a driver 2. The driver 2 is fixed with a bottom plate 62, the bottom plate 62 is fixed on the mounting plate by bolts; the bottom plate 62 is provided with a first mounting hole 621 and a second mounting hole 622, the first mounting hole 621 is used for mounting a bolt, the bottom plate 62 is connected with the driver 2 through the bolt in the first mounting hole 621, the second mounting hole 622 is used for mounting a bolt, the bottom plate 62 is connected with the mounting plate through the bolt in the second mounting hole 622, so as to realize the detachable connection of the driver 2 and the detachable rack, and the on-site assembly can be realized.

[0038] The slide groove 140 is arranged on the column 14 along the height direction of the column 14, and the push plate 3 is slidably arranged in the slide groove 140. The intermediate beam 11 is detachably arranged on the adjacent columns 14 of the two bottom beams 12, that is, there are two intermediate beams 11, each of which is arranged on the column 14 of a different bottom beam 12 to connect the two foundation supports 10 to form a whole. The first connecting plate 63 is arranged on each column 14 and used to connect the intermediate beam 11. The first connecting plate 63 is wider than the column 14, so that the first connecting hole 631 is arranged on both sides of the column 14, thereby facilitating the installation of the bolt. The column 14 includes a column body 141 and a guide 142, the guide 142 is arranged on the column body 141, and the first connecting plate 63 is also arranged on the column body 141. The column body 141 is a rectangular steel pipe, which is a common steel material and can reduce the cost. The guide 142 is usually welded on the column body 141, the guide 142 has the slide groove 140, the guide 142 is a channel steel, the groove of the channel steel is used as the slide groove 140, the guide 142 adopts the channel steel, which is a common steel material and can reduce the cost, and the length of the guide 142 is determined according to the stroke of the driver 2 and is greater than the stroke of the driver 2 to ensure that the push plate 3 has sufficient sliding space.

[0039] The second connecting plate 64 is arranged on each intermediate beam 11 and used to connect the column 14, that is, the first connecting plate 63 and the second connecting plate 64 are correspondingly connected, and the first connecting plate 63 and the second connecting plate 64 are fixed by the bolt, so that the column 14 and the intermediate beam 11 are detachably connected. The second connecting plate 64 is wider than the intermediate beam 11, so that the second connecting hole 641 is arranged on both sides of the intermediate beam 11, thereby facilitating the installation of the bolt. The intermediate beam 11 is also fixed to the wall surface of the drainage ditch by the screw rod 9 to ensure the stability of the detachable support.

[0040] The third connecting plate 65 is arranged on the column 14 and used to connect the filter grate plate 5. The third connecting plate 65 is connected to the filter grate plate 5 by the bolt, so that the push rod 4 on the push plate 3 can be aligned with the filter grate plate 5.

[0041] As Figure 5 , Figures 12 to 14As shown, the push plate 3 is provided with pulleys 7, the number of the pulleys 7 is consistent with the number of the guide members 142, that is, consistent with the number of the sliding grooves 140. Specifically, the push plate 3 comprises a plate body 31, a first mounting seat 32 and a second mounting seat 33; the first mounting seat 32 is mounted on the plate body 31, and is located on the side of the plate body 31 close to the combined rack 1; the first mounting seat 32 is provided with two, and is distributed on both ends of the plate body 31; the first mounting seat 32 is used for mounting the pulleys 7; two pulleys 7 are arranged on each first mounting seat 32; the pulleys 7 slide in the sliding grooves 140, so that the friction between the push plate 3 and the sliding grooves 140 is reduced, and the abrasion is greatly reduced; the second mounting seat 33 is mounted on the plate body 31, and is located on the side of the plate body 31 close to the combined rack 1, that is, the second mounting seat 33 is located on the same side of the plate body 31 as the first mounting seat 32; the second mounting seat 33 is located in the middle of the plate body 31, and is used for connecting with the output end of the driver 2. The second mounting seat 33 comprises two oppositely arranged seat bodies, each seat body is provided with a through hole for mounting a bolt; the seat body comprises a reinforcing plate 331 and a vertical plate 332; the vertical plate 332 is fixed on the plate body 31; the through hole is arranged on the vertical plate 332; the reinforcing plate 331 is fixed on the vertical plate 332 and the plate body 31; the reinforcing plate 331 is perpendicular to the vertical plate 332; the height of the reinforcing plate 331 is lower than that of the through hole, so that the reinforcing plate 331 does not affect the through hole, and the bolt is conveniently mounted.

[0042] When the filter holes 51 of the filter grating 5 are blocked, the driver 2 drives the push plate 3 to move, the push plate 3 drives the push rod 4 to move, the push rod 4 is smoothly inserted into the filter holes 51 of the filter grating 5 under the guidance of the rod cap 42, so that the filter holes 51 are dredged, the mechanical equipment is used to replace the manual work, and the efficiency is improved. Meanwhile, the components are detachably connected, can be flexibly detached, and are convenient to carry and install; the slide rail and the push plate 3 structure ensure that the push rod 4 moves along the predetermined track and can be accurately aligned with the filter holes 51; the hydraulic system is used to provide power, and the unsafe factors such as electric leakage of electric power are avoided.

[0043] The above is only the embodiment of the utility model, and does not limit the patent range of the utility model, and equivalent structures using the contents of the utility model specification and drawings, direct or indirect application in other related technical fields, are also within the patent protection range of the utility model.

Claims

1. A flexible push rod for dredging filter grates, characterized in that: The application relates to a flexible push rod comprising a flexible and deformable rod body for a filter screen and a wear-resistant and corrosion-resistant rod cap for guiding the rod body, the rod cap being detachably connected to the rod body, the rear end of the rod body being provided with a force bearing step, and the rod cap being provided with a guide surface.

2. A flexible pushrod for a cleanout screen as defined in claim 1, wherein: The rod body and the rod cap are connected through threads.

3. A flexible pushrod for a cleanout screen as defined in claim 2, wherein: The rod cap is provided with six tightening planes for facilitating tightening by means of tools.

4. A flexible pushrod for a cleanout screen as defined in claim 3, wherein: The six tightening planes are connected in sequence and surround the rod cap.

5. A flexible pushrod for a cleanout screen as defined in claim 1, wherein: The filter screen is provided with filter holes, the rod cap comprises a small-diameter section smaller than the diameter of the filter holes, a large-diameter section matching the diameter of the filter holes, and a transition section connecting the small-diameter section and the large-diameter section, the transition section being tapered, and the outer wall of the transition section being the guide surface.

6. A flexible pushrod for a cleanout screen as defined in claim 1, wherein: The rod body is made of a wear-resistant and elastic material.

7. A flexible pushrod for a cleanout screen as defined in claim 6, wherein: The rod body is made of PA66 nylon.

8. A flexible pushrod for a cleanout screen as defined in claim 1, wherein: The rear end of the rod body is provided with a force bearing step for increasing the contact area.

9. A flexible pushrod for a cleanout screen as defined in claim 8, wherein: The force bearing step is provided with a sealing groove for mounting a sealing ring.

10. A unblocking device for unblocking a filter screen, characterized in that: The application further relates to a flexible push rod as claimed in any one of claims 1 to 9.

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