CN220036890U - Small oil-free air compressor - Google Patents
Small oil-free air compressor Download PDFInfo
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- CN220036890U CN220036890U CN202321685263.1U CN202321685263U CN220036890U CN 220036890 U CN220036890 U CN 220036890U CN 202321685263 U CN202321685263 U CN 202321685263U CN 220036890 U CN220036890 U CN 220036890U
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- coil pipe
- air compressor
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- small oil
- frame
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- 230000000149 penetrating effect Effects 0.000 claims description 5
- 239000004020 conductor Substances 0.000 claims description 4
- 238000001816 cooling Methods 0.000 claims description 4
- 238000012423 maintenance Methods 0.000 abstract description 5
- 230000009286 beneficial effect Effects 0.000 abstract 2
- 230000017525 heat dissipation Effects 0.000 description 18
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 10
- 230000000694 effects Effects 0.000 description 5
- 238000009825 accumulation Methods 0.000 description 3
- 229910000838 Al alloy Inorganic materials 0.000 description 2
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 2
- 235000017491 Bambusa tulda Nutrition 0.000 description 2
- 241001330002 Bambuseae Species 0.000 description 2
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 2
- 239000011425 bamboo Substances 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229910001369 Brass Inorganic materials 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 239000010951 brass Substances 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 230000003116 impacting effect Effects 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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Abstract
The utility model provides a small oil-free air compressor, which solves the problem that the existing air compressor is not beneficial to maintenance. The small oil-free air compressor comprises a frame and a machine head which is arranged on the frame and provided with an air inlet and an air outlet, wherein a spiral coil is vertically arranged on one side of the machine head, and the upper end and the lower end of the coil are respectively provided with an inlet and an outlet; the coil inlet is connected with the air outlet through an air inlet connector; the axis of the coil outlet is horizontally arranged, a straight pipe-shaped air outlet connector is horizontally fixed on the frame, the coil outlet and the air outlet connector are coaxially arranged, and one end of the air outlet connector is fixedly connected with the coil and communicated with the coil outlet; the frame is also provided with a limit structure for limiting the radial movement of the coil pipe. The small oil-free air compressor is beneficial to maintenance.
Description
Technical Field
The utility model relates to an oil-free air compressor, in particular to a small oil-free air compressor.
Background
The oil-free air compressor is a miniature reciprocating piston compressor, and is characterized by that its motor is driven by single shaft and symmetrically distributed with crank-rocker mechanism, its main kinematic pair is piston ring, and its auxiliary kinematic pair is aluminium alloy cylindrical surface, and between kinematic pairs the piston ring is self-lubricated, and no lubricant is added.
The existing oil-free air compressor (application number: 201810986864.3) comprises an air storage tank and a machine head arranged on the air storage tank, wherein heat dissipation end covers are arranged at two ends of the machine head, a first heat dissipation opening and a second heat dissipation opening are formed in two side walls along the axial direction of the machine head, sliding grooves are formed in the inner walls of the first heat dissipation opening and the second heat dissipation opening, a first sliding plate sliding along the sliding grooves is arranged in the first heat dissipation opening, a second sliding plate sliding along the sliding grooves is arranged in the second heat dissipation opening, and driving pieces which are positioned at two sides of the machine head and used for driving the first sliding plate and the second sliding plate to move back and forth along the axial direction of the machine head so as to open/close the first heat dissipation opening and the second heat dissipation opening are arranged on the air storage tank.
In the above-described air compressor, the air sucked by the head is stored in the air tank, and is supplied to the air tool through the air tank. When in actual use, because the air contains water, the air can generate water-vapor separation when impacting the inner wall of the air storage tank under larger pressure, and the separated water is deposited in the air storage tank, therefore, the prior air storage tank is generally provided with a switch valve at the bottom to discharge water, and the switch valve is required to be continuously and manually opened and closed according to the use frequency of the air compressor, so that the operation is more troublesome.
Disclosure of Invention
The utility model aims at solving the problems in the prior art and provides a small oil-free air compressor convenient to maintain.
The aim of the utility model can be achieved by the following technical scheme: the small oil-free air compressor comprises a frame and a machine head which is arranged on the frame and provided with an air inlet and an air outlet, and is characterized in that a spiral coil is vertically arranged on one side of the machine head, and the upper end and the lower end of the coil are respectively provided with an inlet and an outlet; the coil inlet is connected with the air outlet through an air inlet connector; the axis of the coil outlet is horizontally arranged, a straight pipe-shaped air outlet connector is horizontally fixed on the frame, the coil outlet and the air outlet connector are coaxially arranged, and one end of the air outlet connector is fixedly connected with the coil and communicated with the coil outlet; the frame is also provided with a limit structure for limiting the radial movement of the coil pipe.
The coil pipe can store certain gas to exert the function similar to a gas tank, so that sufficient gas is improved for an external pneumatic tool, the whole coil pipe is arranged vertically, the outlet of the coil pipe and the gas outlet joint are arranged horizontally, the gas entering the coil pipe flows downwards in a spiral manner and is discharged horizontally, water accumulation in the coil pipe can be avoided, and the water discharge step is omitted, so that the subsequent maintenance is convenient.
And the limiting structure is used for limiting radial shaking of the coil pipe so as to ensure air supply stability and efficiency.
In the small oil-free air compressor, the limiting structure comprises a support plate horizontally fixed on the frame and a positioning rod vertically fixed on the support plate, the shape and the size of the outer side wall of the positioning rod are matched with those of the inner hole of the coil pipe, the coil pipe is sleeved into the positioning rod and is pressed on the support plate, and the outer side wall of the positioning rod is pressed on the inner wall of the coil pipe. By adopting the design, the device has the advantages of simple structure and convenient assembly.
In the small oil-free air compressor, the positioning rod comprises a straight rod body and a rubber cylinder sleeved and fixed outside the straight rod body, the lower end of the straight rod body is fixedly connected with the supporting plate, and the outer side wall of the rubber cylinder is pressed on the inner wall of the coil pipe. The locating lever includes the straight body of rod and the rubber section of thick bamboo of contact with the coil pipe to carry out elastic support to the coil pipe, strengthen and prevent radial rocking effect, thereby further improve air feed stability and efficiency.
In the small oil-free air compressor, the rubber cylinders are multiple and are axially distributed at intervals along the straight rod body, the straight rod body is made of a heat conducting material, and on the premise that stable positioning of the coil is ensured, annular gaps are formed among the coil, the positioning rod and the adjacent two rubber cylinders, so that heat dissipation of the coil is facilitated.
In the small oil-free air compressor, the straight rod body is hollow, and the top of the straight rod body is open, so that the heat dissipation effect and efficiency of the coil pipe are further improved.
In the small oil-free air compressor, the bottom wall of the supporting plate is vertically provided with the column body which is coaxial with the positioning rod, and the column body is fixedly connected with the frame. By adopting the design, the support plate is convenient to install and position.
In the small oil-free air compressor, the frame is provided with the threaded hole which is right opposite to the cylinder, and the lower end of the cylinder is connected in the threaded hole in a threaded mode, so that the coil pipe is convenient to adjust in height, the air outlet connector is convenient to adapt due to machining or assembly errors, and further assembly is convenient.
In the small oil-free air compressor, the through hole is horizontally arranged on the frame in a penetrating mode, the through hole is opposite to the machine head, and the cooling fan is arranged at the through hole of the frame so as to accelerate heat dissipation of the machine head.
In the small oil-free air compressor, the machine head is of a rectangular structure, the machine head and the coil are distributed along the length direction of the machine head, and the coil is positioned between the machine head and the cooling fan so as to further accelerate heat dissipation of the coil.
In the small oil-free air compressor, the rubber cylinder is fixedly connected with the straight rod body in a bonding way.
Compared with the prior art, the small oil-free air compressor has the following advantages:
1. the coil pipe can store certain gas to exert the function similar to a gas tank, so that sufficient gas is improved for an external pneumatic tool, the whole coil pipe is arranged vertically, the outlet of the coil pipe and the gas outlet joint are arranged horizontally, the gas entering the coil pipe flows downwards in a spiral manner and is discharged horizontally, water accumulation in the coil pipe can be avoided, and the water discharge step is omitted, so that the subsequent maintenance is convenient.
2. And the limiting structure is used for limiting radial shaking of the coil pipe so as to ensure air supply stability and efficiency.
3. The locating lever includes the straight body of rod and the rubber section of thick bamboo of contact with the coil pipe to carry out elastic support to the coil pipe, strengthen and prevent radial rocking effect, thereby further improve air feed stability and efficiency.
Drawings
Fig. 1 is a schematic perspective view of the small oil-free air compressor.
Fig. 2 is a schematic perspective view of the small oil-free air compressor in another direction.
Fig. 3 is a schematic view of a limiting structure.
In the figure, 1, a rack; 2. a machine head; 3. a coiled pipe; 4. an air outlet joint; 5. a support plate; 5a, a column; 6. a positioning rod; 6a, a straight rod body; 6b, a rubber cylinder; 7. a heat radiation fan.
Description of the embodiments
The following are specific embodiments of the present utility model and the technical solutions of the present utility model will be further described with reference to the accompanying drawings, but the present utility model is not limited to these embodiments.
Example 1
As shown in fig. 1, the small oil-free air compressor comprises a frame 1 and a machine head 2 which is arranged on the frame 1 and provided with an air inlet and an air outlet. The structure of the machine head 2 is an existing structure, and the structure of the machine head is basically consistent with that of the existing air compressor machine head 2, and is not described in detail herein.
In particular the number of the elements,
as shown in fig. 1 and 2, a spiral coil 3 is vertically arranged at one side of the machine head 2, and the upper end and the lower end of the coil 3 are respectively an inlet and an outlet. Wherein, the inlet of the coil pipe 3 is connected with the air outlet of the machine head 2 through an air inlet joint; the axis of the outlet of the coil pipe 3 is horizontally arranged, a straight tubular air outlet connector 4 is horizontally fixed on the frame 1, the outlet of the coil pipe 3 and the air outlet connector 4 are coaxially arranged, and one end of the air outlet connector 4 is fixedly connected with the coil pipe 3 and communicated with the outlet of the coil pipe 3. Under the cooperation of the air outlet connector 4 and the air inlet connector, the coil pipe 3 is limited in the axial direction and the circumferential direction, and the coil pipe 3 is limited to shake radially through a limiting structure which is arranged on the frame 1 and used for limiting the radial movement of the coil pipe 3, so that the coil pipe 3 is positioned completely.
The coil pipe 3 can store certain gas to exert the function similar to a gas tank so as to improve sufficient gas for an external pneumatic tool, and the coil pipe 3 is integrally and vertically arranged, and the outlet of the coil pipe is horizontally arranged with the gas outlet joint 4, so that the gas entering the coil pipe 3 spirally flows downwards and is horizontally discharged, and water accumulation inside the coil pipe 3 can be avoided so as to omit a water discharge step, and the subsequent maintenance is convenient.
In the present embodiment of the present utility model, in the present embodiment,
as shown in fig. 1 and 3, the limiting structure includes a support plate 5 horizontally fixed to the frame 1 and a positioning rod 6 vertically fixed to the support plate 5. The shape and the size of the outer side wall of the positioning rod 6 are matched with those of the inner hole of the coil pipe 3, the central axes of the positioning rod 6 and the coil pipe 3 are collinear, the coil pipe 3 is sleeved into the positioning rod 6 and pressed on the supporting plate 5, and the outer side wall of the positioning rod 6 is pressed on the inner wall of the coil pipe 3.
As shown in fig. 3, the positioning rod 6 comprises a straight rod body 6a and a rubber cylinder 6b sleeved and fixed outside the straight rod body 6a, wherein the lower end of the straight rod body 6a is fixedly connected with the supporting plate 5, and preferably, the lower end of the straight rod body and the supporting plate are fixedly connected by welding; the outer side wall of the rubber cylinder 6b is pressed on the inner wall of the coil pipe 3 to elastically support the coil pipe 3, so that the radial shaking prevention effect is enhanced, and the air supply stability and efficiency are further improved. Further, the plurality of rubber cylinders 6b are axially and alternately distributed along the straight rod body 6a, the straight rod body 6a is made of a heat conducting material, and on the premise of ensuring that the coil pipe 3 is stably positioned, annular gaps are formed among the coil pipe 3, the positioning rod 6 and the adjacent two rubber cylinders 6b, so that heat dissipation of the coil pipe 3 is facilitated. The straight rod body 6a is hollow, and the top and the bottom of the straight rod body 6a are both open, so that the heat dissipation effect and the efficiency of the coil pipe 3 are further improved.
Wherein,
the thermally conductive material may be an aluminum alloy material, a brass material, or a stainless steel material.
The inner side wall of the rubber cylinder 6b is matched with the outer side wall of the straight rod 6a and is stuck together, and glue is coated at the contact position of the two.
The support plate 5 is positioned as follows: the bottom wall of the supporting plate 5 is vertically provided with a column body 5a, the column body 5a and the positioning rod 6 are coaxial, and the column body 5a is fixedly connected with the frame 1. Preferably, the frame 1 is provided with a threaded hole which is opposite to the column 5a in a penetrating way, and the lower end of the column 5a is connected in the threaded hole in a threaded mode, so that the height of the coil pipe 3 is conveniently adjusted, the air outlet joint 4 is conveniently adjusted due to machining or assembly errors, and further the assembly is conveniently carried out.
As shown in fig. 1, a through hole is horizontally penetrating through the frame 1, the through hole is arranged opposite to the machine head 2, and a cooling fan 7 is installed at the through hole of the frame 1 to accelerate heat dissipation of the machine head 2. Further, the head 2 is of a substantially rectangular structure, the head 2 and the coil 3 are distributed along the length direction of the head 2, and the coil 3 is located between the head 2 and the heat dissipation fan 7 to further accelerate heat dissipation of the coil 3.
Example two
The structure and principle of the second embodiment are basically the same as those of the first embodiment, except that: the limit structure comprises a locating plate horizontally fixed on the frame 1, the lower end of the coil pipe 3 is pressed on the locating plate, a limit column matched with an inner hole of the coil pipe 3 is vertically formed on the top wall of the locating plate, and the limit column is inserted into the coil pipe 3.
The specific embodiments described herein are offered by way of example only to illustrate the spirit of the utility model. Those skilled in the art may make various modifications or additions to the described embodiments or substitutions thereof without departing from the spirit of the utility model or exceeding the scope of the utility model as defined in the accompanying claims.
Claims (10)
1. The small oil-free air compressor comprises a frame (1) and a machine head (2) which is arranged on the frame (1) and provided with an air inlet and an air outlet, and is characterized in that a spiral coil (3) is vertically arranged on one side of the machine head (2), and the upper end and the lower end of the coil (3) are respectively an inlet and an outlet; the inlet of the coil pipe (3) is connected with the air outlet through an air inlet connector; the axis of the outlet of the coil pipe (3) is horizontally arranged, a straight pipe-shaped air outlet connector (4) is horizontally fixed on the frame (1), the outlet of the coil pipe (3) and the air outlet connector (4) are coaxially arranged, and one end of the air outlet connector (4) is fixedly connected with the coil pipe (3) and communicated with the outlet of the coil pipe (3); the frame (1) is also provided with a limit structure for limiting the radial movement of the coil pipe (3).
2. The small oil-free air compressor as claimed in claim 1, wherein the limiting structure comprises a supporting plate (5) horizontally fixed on the frame (1) and a positioning rod (6) vertically fixed on the supporting plate (5), the shape and the size of the outer side wall of the positioning rod (6) are matched with those of the inner hole of the coil pipe (3), the coil pipe (3) is sleeved into the positioning rod (6) and is pressed on the supporting plate (5), and the outer side wall of the positioning rod (6) is pressed on the inner wall of the coil pipe (3).
3. The small oil-free air compressor as claimed in claim 2, wherein the positioning rod (6) comprises a straight rod body (6 a) and a rubber cylinder (6 b) sleeved and fixed outside the straight rod body (6 a), the lower end of the straight rod body (6 a) is fixedly connected with the supporting plate (5), and the outer side wall of the rubber cylinder (6 b) is pressed on the inner wall of the coil pipe (3).
4. A small oil-free air compressor according to claim 3, characterized in that the rubber cylinders (6 b) are a plurality of and axially spaced along the straight rod body (6 a), the straight rod body (6 a) being made of a heat conductive material.
5. A small oil-free air compressor as claimed in claim 4, wherein the straight rod (6 a) is hollow, and the top of the straight rod (6 a) is open.
6. A small oil-free air compressor as claimed in claim 2, wherein a column body (5 a) is vertically formed on the bottom wall of the supporting plate (5), the column body (5 a) and the positioning rod (6) are coaxial, and the column body (5 a) is fixedly connected with the frame (1).
7. A small oil-free air compressor as claimed in claim 6, wherein the frame (1) is provided with threaded holes which are arranged opposite to the column (5 a) in a penetrating way, and the lower ends of the column (5 a) are connected in the threaded holes in a threaded way.
8. A small oil-free air compressor as claimed in claim 1, characterized in that the frame (1) is provided with a through hole in a horizontal penetrating manner, the through hole is arranged opposite to the machine head (2), and the frame (1) is provided with a cooling fan (7) at the through hole.
9. A small oil-free air compressor according to claim 8, characterized in that the head (2) is of a substantially rectangular structure, the head (2) and the coil (3) are distributed along the length of the head (2), and the coil (3) is located between the head (2) and the radiator fan (7).
10. A small oil-free air compressor according to claim 3, wherein the rubber cylinder (6 b) is fixedly bonded with the straight rod (6 a).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321685263.1U CN220036890U (en) | 2023-06-30 | 2023-06-30 | Small oil-free air compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321685263.1U CN220036890U (en) | 2023-06-30 | 2023-06-30 | Small oil-free air compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220036890U true CN220036890U (en) | 2023-11-17 |
Family
ID=88725327
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321685263.1U Active CN220036890U (en) | 2023-06-30 | 2023-06-30 | Small oil-free air compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220036890U (en) |
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2023
- 2023-06-30 CN CN202321685263.1U patent/CN220036890U/en active Active
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