Circulating water-cooled oilless air compressor

Abstract

The utility model provides a circulating water-cooled oilless air compressor, which relates to the technical field of air compressors and comprises an air compressor body. The air compressor body is provided with an air compressor shell in the left-right direction, half-round head blocks with up-down through holes are arranged on the front side and the back side of the left end face of the air compressor shell correspondingly, a dragging handle rod in the up-down direction is inserted into the portion between the half-round head blocks of the air compressor shell, and a grabbing rod in the front-back direction is arranged at the top of the dragging handle rod. Inserting rods in the vertical direction are arranged at the bottoms of the two ends of a grabbing rod of the dragging handle rod, and semicircular heads with front-back through holes are arranged at the lower ends of the inserting rods of the dragging handle rod, so that the dragging handle rod can be conveniently inserted into a shell of the air compressor and is prevented from falling off through unfolding anti-falling columns, and the dragging handle rod can be conveniently pulled up, turned over and unfolded and put down, inserted and folded; the problems that the dragging handle of the air compressor is fixed, the dragging handle cannot be folded and unfolded according to whether the dragging handle moves or not, and the dragging handle is inconvenient to be installed on the air compressor through a folding and unfolding structure to be folded and unfolded according to actual conditions are solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of air compressors, and in particular relates to a circulating water-cooled oil-free air compressor. Background Art

[0002] An air compressor is a device used to compress gas. It is the main body of an air source device and a gas pressure generating device for compressed air. It converts the mechanical energy of an electric motor into gas pressure energy. According to the lubrication method, it can be divided into oil-free air compressors and oil-lubricated air compressors. The air compressor will generate heat during operation, so it needs to be cooled by circulating water, which is a circulating water-cooled oil-free air compressor.

[0003] Based on the above, the inventors found that the existing circulating water-cooled oil-free air compressor has the following shortcomings:

[0004] 1. The drag handle of the air compressor is fixed, and it is not possible to retract or extend the drag handle according to whether it is moving. It is not convenient to install the drag handle on the air compressor through the retractable structure to retract or extend it according to the actual situation;

[0005] 2. The air compressor is moved by rollers, which makes it easy for the air compressor to be displaced when placed in use. It is not convenient to add support measures to the air compressor to make the rollers off the ground to ensure stability when placed in use. Summary of the invention

[0006] In order to solve the above technical problems, the utility model provides a circulating water-cooled oil-free air compressor to solve the problem that the existing air compressor towing handle is fixed, and the towing handle cannot be retracted and extended according to whether it is moved, and it is not convenient to install the towing handle on the air compressor through the retractable structure to retract and extend according to actual conditions; the air compressor is moved by rollers, which makes it easy for the air compressor to be displaced when it is placed for use, and it is not convenient to add support measures to the air compressor to make the rollers leave the ground to ensure stability when placed for use.

[0007] The purpose and effect of the circulating water-cooled oil-free air compressor of the utility model are achieved by the following specific technical means:

[0008] A circulating water-cooled oil-free air compressor comprises an air compressor body; the air compressor body is provided with an air compressor shell in the left and right directions, and semicircular head blocks with upper and lower through holes are provided on the front and rear of the left end face of the air compressor shell, and a drag handle rod in the upper and lower directions is inserted between the semicircular head blocks of the air compressor shell, and a gripping rod in the front and rear directions is provided on the top of the drag handle rod, and insertion rods in the upper and lower directions are provided at the bottom of both ends of the gripping rod of the drag handle rod, and a semicircular head with front and rear through holes is provided at the lower end of the insertion rod of the drag handle rod, and a limiting groove which runs through the left and right is provided in the middle of the bottom end face of the insertion rod of the drag handle rod, and an anti-detachment column in the upper and lower directions is installed inside the limiting groove of the drag handle rod through a fixed shaft, and a semicircular head plate with front and rear through holes is provided in the middle of the top end face of the anti-detachment column, and a limiting ring plate is provided on the outer circumference of the bottom of the anti-detachment column.

[0009] Furthermore, a ground contact moving wheel is installed on the regular hexagonal prism of the rotating bearing shaft by bolts, a regular hexagonal groove is provided at the center of the inner end surface of the ground contact moving wheel, and a through hole penetrating front and back is provided at the center of the ground contact moving wheel.

[0010] Furthermore, a regular hexagonal prism is arranged on the outer end surface of the fixed column of the rotating bearing shaft, and a threaded blind hole is opened on the outer end surface of the regular hexagonal prism of the rotating bearing shaft.

[0011] Furthermore, a rotating bearing shaft in the front-to-back direction is installed between the semicircular head plates of the fixed bearing plate through bearings, and the front and rear end surfaces of the rotating bearing shaft are both provided with fixing columns.

[0012] Furthermore, a placement support rod is installed in the threaded hole of the fixed supporting plate in the up and down directions, a thread is opened on the outer circumference of the placement support rod, a regular hexagonal prism is arranged on the top end face of the placement support rod, and a ground contact circular plate is arranged on the bottom end face of the placement support rod.

[0013] Furthermore, the front and rear ends of the bottom end surface of the fixed bearing plate are both provided with semicircular head plates with front and rear through holes, and the front and rear ends of the top end surface of the fixed bearing plate are both provided with reinforcing ribs.

[0014] Furthermore, fixed bearing plates in the front-to-back direction are welded on both left and right sides of the bottom of the air compressor housing, and threaded holes penetrating from top to bottom are provided at both ends of the fixed bearing plates.

[0015] Compared with the prior art, the utility model has the following beneficial effects:

[0016] The drag handle rod is conveniently inserted into the air compressor housing and prevented from falling off by unfolding the anti-falling column. The drag handle rod is conveniently pulled up, flipped over, unfolded, lowered, inserted and folded. This solves the problem that the air compressor drag handle is fixed and cannot be folded and unfolded according to whether it is moved, and it is inconvenient to install the drag handle on the air compressor through the folding and unfolding structure to fold and unfold according to actual conditions.

[0017] The support rod is conveniently installed on the fixed supporting plate through threads. The support rod is conveniently placed and lowered to touch the ground through thread engagement, so that the ground-touching moving wheel is separated from the ground to achieve stable placement. This solves the problem that the air compressor is moved through rollers, which causes the air compressor to be easily displaced when placed in use, and it is inconvenient to add support measures to the air compressor to make the rollers separate from the ground to ensure stability when placed in use. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a main structural schematic diagram of the utility model.

[0019] Figure 2 It is a schematic diagram of the mobile state of the utility model.

[0020] Figure 3 The utility model is a schematic diagram of assembling a towing handle rod and an unfolding anti-dropping column.

[0021] Figure 4 It is a cross-sectional schematic diagram of the ground-contacting moving wheel of the utility model.

[0022] Figure 5 It is a front view schematic diagram of a fixed bearing plate of the utility model.

[0023] Figure 6 It is a main schematic view of the rotating bearing shaft of the utility model.

[0024] In the figure: 1. Air compressor body; 2. Air compressor casing; 3. Drag the handle rod; 4. Expand the anti-slip column; 5. Fix the load-bearing plate; 6. Place the support rod; 7. Rotate the load-bearing shaft; 8. Touch the ground moving wheel. DETAILED DESCRIPTION

[0025] The embodiments of the present invention are further described in detail below in conjunction with the accompanying drawings and examples. Embodiment 1

[0026] As attached Figure 1 To Attachment Figure 6 As shown:

[0027] The utility model provides a circulating water-cooled oil-free air compressor, comprising an air compressor body 1; the air compressor body 1 is provided with an air compressor shell 2 in the left and right directions, which is convenient for carrying various components; the left end surface of the air compressor shell 2 is provided with semicircular head blocks with upper and lower through holes at the front and rear, which is convenient for inserting and installing a drag handle rod 3; a drag handle rod 3 in the upper and lower directions is inserted inside the semicircular head blocks of the air compressor shell 2, which is convenient for the drag handle rod 3 to move up and down; a gripping rod in the front and rear directions is provided on the top of the drag handle rod 3, which is convenient for hand gripping; and insertion rods in the upper and lower directions are provided at the bottoms of the gripping rods of the drag handle rod 3 at both ends, which is convenient for inserting the semicircular head blocks of the air compressor shell 2 Internally, a semicircular head with front and rear through holes is provided at the lower end of the insertion rod of the drag handle rod 3, so that the anti-slip column 4 can be easily unfolded and flipped by installing it on the fixed axis. A left-right through-limiting groove is provided in the middle of the bottom end face of the insertion rod of the drag handle rod 3, so that the semicircular head plate of the anti-slip column 4 can be easily inserted and limited. The anti-slip column 4 in the upper and lower directions is installed inside the limiting groove of the drag handle rod 3 through the fixed axis, so that the drag handle rod 3 can be easily flipped. A semicircular head plate with front and rear through holes is provided in the middle of the top end face of the anti-slip column 4, so that the drag handle rod 3 can be easily flipped by installing it on the fixed axis. A limiting ring plate is provided on the outer circumference of the bottom of the anti-slip column 4, so that it can be easily moved upward and prevented from slipping.

[0028] Among them, fixed bearing plates 5 in the front and rear directions are welded on both sides of the bottom of the air compressor housing 2, which is convenient for carrying various components. Threaded holes are opened at both ends of the fixed bearing plate 5 to penetrate up and down, which is convenient for placing the support rod 6 to be installed through threads. Semicircular head plates with front and rear through holes are set on the front and back of the bottom end face of the fixed bearing plate 5 to facilitate the installation of the rotating bearing shaft 7 through bearings. Reinforcing ribs are set on the front and back of the top end face of the fixed bearing plate 5 to facilitate welding and force reinforcement. The threaded holes of the fixed bearing plate 5 are installed with support rods 6 in the upper and lower directions to facilitate the lifting and lowering adjustment of the support rods 6 through threaded engagement. The outer circumference of the support rod 6 is opened with threads to facilitate threaded installation. The top end face of the support rod 6 is provided with a regular hexagonal prism to facilitate rotation and adjustment through tools. The bottom end face of the support rod 6 is provided with a ground contact circle Plate, convenient for contact with the ground, a rotating bearing shaft 7 in the front and rear directions is installed between the semicircular head plates of the fixed bearing plate 5 through bearings, which is convenient for the rotating bearing shaft 7 to rotate, and the front and rear end faces of the rotating bearing shaft 7 are provided with fixed columns, which are convenient for installation through bearings, and the outer end face of the fixed column of the rotating bearing shaft 7 is provided with a regular hexagonal prism, which is convenient for the synchronous rotation of the ground-touching moving wheel 8 set, and the outer end face of the regular hexagonal prism of the rotating bearing shaft 7 is provided with a threaded blind hole, which is convenient for the ground-touching moving wheel 8 to be installed by bolts, and the ground-touching moving wheel 8 is installed on the regular hexagonal prism of the rotating bearing shaft 7 by bolts, which is convenient for contact with the ground for movement, and a regular hexagonal groove is provided in the center of the inner end face of the ground-touching moving wheel 8, which is convenient for the regular hexagonal prism of the rotating bearing shaft 7 to be inserted and rotated synchronously, and a through hole that runs through the front and back is provided in the center of the ground-touching moving wheel 8, which is convenient for bolts to be inserted to lock the ground-touching moving wheel 8.

[0029] The specific usage and function of this embodiment are as follows:

[0030] In the utility model, Figure 1 The air compressor body 1 is shown in a placed state, at which the bottom end surface of the placement support rod 6 is in contact with the ground, the lower part of the outer circumference of the ground-touching moving wheel 8 is off the ground, and the drag handle rod 3 is in a retracted state. When the air compressor body 1 is moved, the placement support rod 6 is rotated by a tool to engage with the fixed bearing plate 5 threadedly, so that the placement support rod 6 is lifted up and separated from the ground through the threaded engagement, so that the lower part of the outer circumference of the ground-touching moving wheel 8 is in contact with the ground, and the gripping rod of the drag handle rod 3 is held and pulled upward, so that the unfolding anti-detachment column 4 rises and is inside the semicircular head block of the air compressor housing 2, and the drag handle rod 3 is flipped to the left, and the state is as shown in FIG. Figure 2 As shown, the air compressor body 1 can be dragged and moved by dragging the handle rod 3. Embodiment 2

[0031] The difference from the first embodiment is that the outer circumferential surface of the gripping rod of the drag handle rod 3 can also be set to a frosted surface, thereby increasing the friction between the outer circumferential surface of the gripping rod of the drag handle rod 3 and the hand, and preventing the outer circumferential surface of the gripping rod of the drag handle rod 3 from slipping when gripping. Embodiment 3

[0032] The difference from the first embodiment is that the regular hexagonal prism on which the support rod 6 is placed can also be set as a regular heptagonal prism, so that the support rod 6 can only be rotated by a special tool that cooperates with the regular heptagonal prism, preventing non-staff from rotating and adjusting the support rod 6.

Claims

1. A circulating water-cooled oil-free air compressor, characterized in that: The invention comprises an air compressor body (1); the air compressor body (1) is provided with an air compressor shell (2); the air compressor shell (2) is provided with semicircular head blocks with upper and lower through holes at the front and rear of the left end face; a drag handle rod (3) is inserted between the semicircular head blocks of the air compressor shell (2); a gripping rod in the front and rear directions is provided at the top of the drag handle rod (3); insertion rods in the upper and lower directions are provided at the bottom of both ends of the gripping rod of the drag handle rod (3); a semicircular head with front and rear through holes is provided at the lower end of the insertion rod of the drag handle rod (3); a limit groove running through left and right is provided in the middle of the bottom end face of the insertion rod of the drag handle rod (3); an expansion anti-slip column (4) is installed inside the limit groove of the drag handle rod (3) through a fixed shaft; a semicircular head plate with front and rear through holes is provided in the middle of the top end face of the expansion anti-slip column (4); and a limit ring plate is provided on the outer circumference of the bottom of the expansion anti-slip column (4).

2. A circulating water-cooled oil-free air compressor as claimed in claim 1, characterized in that: Fixed bearing plates (5) are welded to both left and right sides of the bottom of the air compressor housing (2), and both ends of the fixed bearing plates (5) are provided with threaded holes penetrating from top to bottom.

3. A circulating water-cooled oil-free air compressor as claimed in claim 2, characterized in that: The fixed bearing plate (5) is provided with semicircular head plates with front and rear through holes at the front and rear ends of the bottom end surface, and reinforcing ribs are provided at the front and rear ends of the top end surface of the fixed bearing plate (5).

4. A circulating water-cooled oil-free air compressor as claimed in claim 3, characterized in that: A placement support rod (6) is installed inside the threaded hole of the fixed bearing plate (5), a thread is provided on the outer circumference of the placement support rod (6), a regular hexagonal prism is provided on the top end face of the placement support rod (6), and a ground contacting circular plate is provided on the bottom end face of the placement support rod (6).

5. A circulating water-cooled oil-free air compressor as claimed in claim 4, characterized in that: A rotating bearing shaft (7) is mounted between the semicircular head plates of the fixed bearing plate (5) via bearings, and the front and rear end surfaces of the rotating bearing shaft (7) are both provided with fixing columns.

6. A circulating water-cooled oil-free air compressor as claimed in claim 5, characterized in that: The outer end surface of the fixed column of the rotating bearing shaft (7) is provided with a regular hexagonal prism, and the outer end surface of the regular hexagonal prism of the rotating bearing shaft (7) is provided with a threaded blind hole.

7. A circulating water-cooled oil-free air compressor as claimed in claim 6, characterized in that: A ground contact moving wheel (8) is mounted on the regular hexagonal prism of the rotating bearing shaft (7) by means of bolts, a regular hexagonal groove is provided at the centre of the inner end face of the ground contact moving wheel (8), and a through hole is provided at the centre of the ground contact moving wheel (8) that penetrates front and back.

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