CN220197557U - Backrest wheel locating pin extracting tool - Google Patents
Backrest wheel locating pin extracting tool Download PDFInfo
- Publication number
- CN220197557U CN220197557U CN202321411454.9U CN202321411454U CN220197557U CN 220197557 U CN220197557 U CN 220197557U CN 202321411454 U CN202321411454 U CN 202321411454U CN 220197557 U CN220197557 U CN 220197557U
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- CN
- China
- Prior art keywords
- hole
- clamping seat
- slot
- cassette
- card
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- 239000004677 Nylon Substances 0.000 description 11
- 229920001778 nylon Polymers 0.000 description 11
- 238000000034 method Methods 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 238000005273 aeration Methods 0.000 description 1
- 238000005276 aerator Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
Abstract
The utility model provides a back wheel locating pin extracting tool, including the slot shaped card, the one side slot limit of slot shaped card is equipped with the position of dodging that is used for dodging the locating pin, the other side slot limit is equipped with first screw hole, a screw rod and a first screw hole spin joint for pushing away the locating pin, the slot shaped card includes first cassette and second cassette, first cassette and second cassette are L shape, first cassette and second cassette sliding connection, be equipped with on the longitudinal side of first cassette and dodge the position, be equipped with first slot hole on the lateral side, be equipped with first screw hole on the longitudinal side of second cassette, lateral side is equipped with the second screw hole on the one side that keeps away from first screw hole, the locking bolt passes first slot hole and second screw hole spin joint. The first clamping seat and the second clamping seat can be slidably adjusted, so that the groove-shaped clamp can be telescopically adjusted, and the use of on-site backrest wheels of different models can be met.
Description
Technical Field
The utility model relates to the technical field of positioning pin disassembly, in particular to a backrest wheel positioning pin disassembly tool.
Background
The motor in the surface aerator of the sewage treatment plant is connected with the aeration rotating brush by adopting a backrest wheel and a nylon locating pin, the locating pin is narrow in disassembly and installation operation surface, and when the nylon locating pin is disassembled by adopting a hammer and ejector rod striking mode, the operation is inconvenient, and the safety risk of injuring hands by smashing exists; meanwhile, the nylon locating pin and other surrounding parts can be damaged by the strong impact force generated by the impact, and the disassembly and assembly process consumes long time.
Chinese patent document CN203973479U, publication/date: 2014.12.03 discloses a push-and-pull tension roller nylon pin extractor, including U type seat, screw rod, its characterized in that: the two side walls of the U-shaped seat are respectively provided with a through hole, the first through hole is a hole with the diameter of 30mm, the second through hole is a threaded hole of M12, the centers of the first through hole and the second through hole are on the same line, the nylon pin penetrates through the first through hole, the screw rod penetrates through the second through hole, and the screw rod is an M12 screw rod. The advantages are that: the nylon pin is simple in structure, small in appearance, safe and reliable, and applicable to disassembling and using the nylon pin of the elastic pin coupler with small operation space; the device has the defects that the types of the backrest wheels used at a plurality of places on the site are different, the thickness differences of the backrest wheels of different types are quite large, and the device which can be used for the large-sized backrest wheels is inconvenient to use due to limited space when the device is used for the small-sized backrest wheels due to narrow site environment.
Disclosure of Invention
The utility model aims to solve the technical problems that: solves the problems existing in the prior art, and provides a backrest wheel locating pin dismounting tool, wherein a first clamping seat and a second clamping seat can be slidably adjusted, so that a groove-shaped clamp can be telescopically adjusted, and the use of backrest wheels of different models on site can be met
In order to achieve the technical characteristics, the aim of the utility model is realized in the following way: the utility model provides a back wheel locating pin extracting tool, includes the slot shaped card, the one side slot limit of slot shaped card is equipped with the position of dodging that is used for dodging the locating pin, and the other side slot limit is equipped with first screw hole for the screw rod of top pushing away the locating pin connects soon with first screw hole, the slot shaped card includes first cassette and second cassette, and first cassette and second cassette are L shape, and first cassette and second cassette sliding connection are equipped with on the longitudinal side of first cassette keep away the position, and the transverse side is equipped with first slot hole, be equipped with on the longitudinal side of second cassette first screw hole, transverse side is equipped with the second screw hole in the one side of keeping away from first screw hole, and the locking bolt passes first slot hole and second screw hole and connects soon.
The lateral side downside of first cassette is equipped with the spout, and the lateral side of second cassette slides in the spout.
The first clamping seat is characterized in that a positioning hole perpendicular to the sliding groove is formed in one end, far away from the longitudinal side edge, of the first clamping seat, a second long hole is formed in the second clamping seat, corresponding to the positioning hole, on the transverse side edge, and the limiting pin shaft penetrates through the positioning hole and the second long hole.
And the sides of the first clamping seat and the second clamping seat, which are contacted, are respectively provided with tooth grooves which are matched with each other.
The avoidance bit is a round hole or a U-shaped notch.
The screw rod is provided with a rotating hole at one end far away from the groove-shaped clamp.
A plug is rotatably arranged at one end of the screw rod positioned in the groove-shaped clamp; the screw rod is equipped with the hole of placing at the tip that is located the interior one end of flute profile card, the top includes big head end and little head end, and little head end pivoted is installed in placing the hole, and big head end and the tip interval of screw rod a distance.
The ball is arranged in the placing hole, and the small end of the plug abuts against the ball.
The utility model has the following beneficial effects:
1. the first clamping seat and the second clamping seat can be slidably adjusted, so that the groove-shaped clamp can be telescopically adjusted, and the use of on-site backrest wheels of different models can be met.
2. The first clamping seat and the second clamping seat slide in a limiting manner through the limiting pin shaft which is installed on the positioning hole and the second long hole in a penetrating manner, and even if the locking bolt is separated from the second clamping seat due to improper operation, the first clamping seat and the second clamping seat cannot be separated into two parts to fall off.
3. The first clamping seat and the second clamping seat are respectively provided with a tooth slot matched with each other on one side, so that the friction force on one side of the first clamping seat and one side of the second clamping seat, which are contacted, is increased, the first clamping seat and the second clamping seat are connected more stably and reliably when fixed, and the first clamping seat and the second clamping seat cannot slide when stressed.
4. The screw rod is provided with a plug in a rotary mode at one end located in the groove-shaped clamp, and the plug does not rotate when the screw rod rotates, so that the nylon locating pin cannot be damaged.
Drawings
Fig. 1 is a schematic diagram of a front view structure of the present utility model.
Fig. 2 is a schematic perspective view of the present utility model.
Fig. 3 is an exploded view of the present utility model.
Fig. 4 is a schematic perspective view of the first card holder 1 according to the present utility model.
FIG. 5 is a schematic cross-sectional view of the screw of the present utility model.
In the figure: the first clamping seat 1, the avoiding position 11, the first long hole 12, the sliding chute 13, the positioning hole 14, the tooth slot 15, the second clamping seat 2, the first threaded hole 21, the second threaded hole 22, the second long hole 23, the screw 3, the rotating hole 31, the placing hole 32, the locking bolt 4, the limiting pin 5, the plug 6, the big end 61, the small end 62 and the ball 7.
Detailed Description
Embodiments of the present utility model will be further described with reference to the accompanying drawings.
Referring to fig. 1-5, a dismounting tool for a positioning pin of a backrest wheel comprises a groove-shaped clamp, wherein an avoidance position 11 for avoiding the positioning pin is arranged on one groove side of the groove-shaped clamp, a first threaded hole 21 is arranged on the other groove side of the groove-shaped clamp, a screw 3 for pushing the positioning pin is screwed with the first threaded hole 21, the groove-shaped clamp comprises a first clamping seat 1 and a second clamping seat 2, the first clamping seat 1 and the second clamping seat 2 are both L-shaped, the first clamping seat 1 and the second clamping seat 2 are in sliding connection, an avoidance position 11 is arranged on the longitudinal side of the first clamping seat 1, a first long hole 12 is arranged on the transverse side, a first threaded hole 21 is arranged on the longitudinal side of the second clamping seat 2, a second threaded hole 22 is arranged on the side far from the first threaded hole 21 on the transverse side, and a locking bolt 4 passes through the first long hole 12 and is screwed with the second threaded hole 22. The first clamping seat 1 and the second clamping seat 2 can be slidably adjusted, so that the groove-shaped clamp can be telescopically adjusted, and the use of different types of back wheels on site can be met. In order to ensure the stability of the connection of the first card holder 1 and the second card holder 2, the first long hole 12 and the second screw hole 22 may be provided in two groups.
Referring to fig. 3, the lower side of the lateral side of the first card holder 1 is provided with a chute 13, the lateral side of the second card holder 2 slides in the chute 13, and the connection stability of the first card holder 1 and the second card holder 2 is better.
Referring to fig. 3, a positioning hole 14 perpendicular to the sliding groove 13 is formed in one end of the lateral side of the first card holder 1 away from the longitudinal side, a second long hole 23 is formed in the lateral side of the second card holder 2 corresponding to the positioning hole 14, and the limiting pin shaft 5 passes through the positioning hole 14 and the second long hole 23. In this way, the first clamping seat 1 and the second clamping seat 2 can slide in a limiting manner through the limiting pin shaft 5 which is installed on the positioning hole 14 and the second long hole 23 in a penetrating manner, and even if the locking bolt 4 is separated from the second clamping seat 2 due to improper operation, the first clamping seat 1 and the second clamping seat 2 cannot be separated into two parts to fall.
In order to increase the friction force on the contact side of the first card holder 1 and the second card holder 2, referring to fig. 3 and 4, the contact sides of the first card holder 1 and the second card holder 2 are respectively provided with tooth grooves 15 which are matched with each other. It should be noted that, when the first card holder 1 and the second card holder 2 slide in a limited manner through the limiting pin 5 inserted into the positioning hole 14 and the second slot 23, in order to facilitate separation and engagement of the tooth slots 15 on the first card holder 1 and the second card holder 2, referring to fig. 3, the positioning hole 14 is a longitudinal slot. After the tooth slot 15 is arranged, the first long hole 12 and the second threaded hole 22 are provided with a group of connection which can be stable, so that the use is more convenient.
In actual manufacturing, the avoiding position 11 is a round hole or a U-shaped notch. The relief position 11 in fig. 4 is a U-shaped gap.
Referring to fig. 3 and 5, the screw 3 is provided with a rotation hole 31 at an end remote from the slot-shaped card. The rotating hole 31 is arranged, so that the short shaft rotating screw 3 can be conveniently inserted, and the wrench is suitable for occasions where the wrench is inconvenient to use.
Referring to fig. 3 and 5, in order to prevent the screw 3 from rotating to damage the nylon locating pin, the screw 3 is rotatably mounted with a plug 6 at one end located within the channel clamp. Specifically, the screw 3 is provided with a placement hole 32 at the end of one end in the slot-shaped card, the plug 6 comprises a big head end 61 and a small head end 62, the small head end 62 is rotatably arranged in the placement hole 32, and the big head end 61 is spaced from the end of the screw 3 by a distance. The placement hole 32 can be provided with a thrust bearing against which the plug 6 rotates.
In the preferred scheme, the ball 7 is arranged in the placement hole 32, and the small end 62 of the plug 6 abuts against the ball 7, so that the structure is simple.
When the screw 3 is rotated, and the plug 6 abuts against the nylon locating pin without rotating, so that the nylon locating pin is not damaged.
The working process or principle of the utility model:
when the back rest wheel is used, the width of the groove-shaped clamp is adjusted according to the back rest wheel to be detached, the locking bolt 4 is loosened, the second clamping seat 2 is pushed and pulled, after the distance is adjusted to a proper distance, one side of the avoidance position 11 of the first clamping seat 1 is abutted against one side of the back rest wheel, the locking bolt 4 is rotated, and the locking bolt 4 is abutted against the positioning pin, so that the positioning pin is ejected out of the back rest wheel.
Claims (8)
1. The utility model provides a back wheel locating pin extracting tool, includes the slot shaped card, one side slot limit of slot shaped card is equipped with and is used for dodging position (11) of dodging the locating pin, and the other side slot limit is equipped with first screw hole (21), is used for pushing away screw rod (3) of locating pin and connects with first screw hole (21) soon, its characterized in that: the groove-shaped card comprises a first card seat (1) and a second card seat (2), wherein the first card seat (1) and the second card seat (2) are in L shape, the first card seat (1) and the second card seat (2) are in sliding connection, the longitudinal side edge of the first card seat (1) is provided with an avoidance position (11), the transverse side edge is provided with a first long hole (12), the longitudinal side edge of the second card seat (2) is provided with a first threaded hole (21), one side of the transverse side edge, far away from the first threaded hole (21), is provided with a second threaded hole (22), and a locking bolt (4) penetrates through the first long hole (12) to be screwed with the second threaded hole (22).
2. The back wheel alignment pin removal tool of claim 1, wherein: the lower side of the transverse side edge of the first clamping seat (1) is provided with a sliding groove (13), and the transverse side edge of the second clamping seat (2) slides in the sliding groove (13).
3. The back wheel alignment pin removal tool of claim 2, wherein: the transverse side of the first clamping seat (1) is provided with a positioning hole (14) perpendicular to the sliding groove (13) at one end far away from the longitudinal side, the transverse side of the second clamping seat (2) is provided with a second long hole (23) corresponding to the positioning hole (14), and the limiting pin shaft (5) penetrates through the positioning hole (14) and the second long hole (23).
4. A back wheel alignment pin removal tool according to any of claims 1-3, wherein: one side of the first clamping seat (1) and one side of the second clamping seat (2) which are contacted are respectively provided with tooth grooves (15) which are matched with each other.
5. The back wheel alignment pin removal tool of claim 1, wherein: the avoiding position (11) is a round hole or a U-shaped notch.
6. The back wheel alignment pin removal tool of claim 1, wherein: the screw (3) is provided with a rotating hole (31) at one end far away from the groove-shaped clamp.
7. The back wheel alignment pin removal tool of claim 1, wherein: a plug (6) is rotatably arranged at one end of the screw (3) positioned in the groove-shaped clamp; the screw rod (3) is located the tip of groove-shaped card one end and is equipped with places hole (32), top (6) are including big head end (61) and tip (62), and tip (62) pivoted is installed in placing hole (32), and the tip interval of big head end (61) and screw rod (3) is a distance.
8. The back wheel alignment pin removal tool of claim 7, wherein: the ball (7) is arranged in the placing hole (32), and the small head end (62) of the plug (6) abuts against the ball (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321411454.9U CN220197557U (en) | 2023-06-05 | 2023-06-05 | Backrest wheel locating pin extracting tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321411454.9U CN220197557U (en) | 2023-06-05 | 2023-06-05 | Backrest wheel locating pin extracting tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220197557U true CN220197557U (en) | 2023-12-19 |
Family
ID=89146793
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321411454.9U Active CN220197557U (en) | 2023-06-05 | 2023-06-05 | Backrest wheel locating pin extracting tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220197557U (en) |
-
2023
- 2023-06-05 CN CN202321411454.9U patent/CN220197557U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |