Crankcase of oilless air compressor

Abstract

The utility model discloses an oilless air compressor crankcase, relates to the crankcase technical field, including crankcase body and a plurality of locating lever, said crankcase body top is provided with cylinder connecting seat, each fixed plate bottom is all fixedly provided with insert plate, each locating lever all movably sleeve the side wall of crankcase body, and the insert plate is fixed in the cylinder connecting seat. And one end of each positioning rod is inserted into the corresponding positioning hole. Through the arrangement of the two inserting plates and the multiple positioning rods, the two inserting plates are inserted into the corresponding convex inserting grooves, the multiple positioning rods are pushed to move through the pushing mechanism, the multiple positioning rods can be smoothly inserted into the corresponding positioning holes through movement, and then the two inserting plates can be positioned; and the two inserting plates can be smoothly taken out by reversely driving the pushing mechanism, so that a user can conveniently mount and dismount the air cylinder connecting seat, and the mounting and dismounting convenience of the air cylinder connecting seat is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of crankcases, in particular to an oil-free air compressor crankcase. Background Art

[0002] The crankcase is the basic component of the air compressor, which is used to place the crankshaft, connecting rod and other components and other auxiliary equipment, and is fastened to the base by bolts. In addition to bearing the gas force and inertia force generated when the air compressor is running, it also has to bear the gravity of all the components located on it.

[0003] In the process of implementing this application, the applicant found that the existing oil-free air compressor crankcase has a fixed arrangement between the cylinder connecting seat and the crankcase body when in use, which consumes a lot of energy during installation and disassembly, resulting in low installation and disassembly efficiency of the cylinder connecting seat and inconvenience in use. Utility Model Content

[0004] The utility model aims to solve the problem of low installation and disassembly efficiency between a cylinder connecting seat and a crankcase body in the prior art, and proposes an oil-free air compressor crankcase.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A crankcase of an oil-free air compressor comprises a crankcase body and a plurality of positioning rods, the side wall of the crankcase body being provided with an annular hole, the inner wall of the annular hole being fixedly provided with an annular steel ring, the interior of the annular steel ring being provided with a bearing ring, a cylinder connecting seat being provided above the crankcase body, two fixing plates being fixedly provided at the bottom of the cylinder connecting seat, a plug plate being fixedly provided at the bottom of each of the fixing plates, two convex slots being provided on the side wall of the crankcase body, each of the plug plates being movably inserted into the interior of the corresponding convex slots, a plurality of positioning holes being provided on the side wall of each of the plug plates, each of the positioning rods being movably sleeved on the side wall of the crankcase body, one end of each of the positioning rods being plugged into the interior of the corresponding positioning hole, a pushing mechanism being provided on the side wall of the crankcase body, and each of the positioning rods matching the pushing mechanism.

[0007] Preferably, the pushing mechanism includes a U-shaped plate, a screw, a crank and a movable plate, the U-shaped plate is fixedly arranged on the side wall of the crankcase body, the screw is rotatably sleeved on the side wall of the U-shaped plate, the crank is fixedly connected to one end of the screw, the other end of the screw is rotatably connected to the side wall of the crankcase body, the movable plate is threadedly sleeved on the rod wall of the screw, and the other end of each positioning rod is fixedly connected to the movable plate.

[0008] Preferably, a limiting plate is fixedly provided on the inner wall of each of the convex slots, a limiting slot is provided inside each of the limiting plates, and each of the plug plates matches the corresponding limiting slot.

[0009] Preferably, two limit rods are fixedly provided on the inner wall of the U-shaped plate, the other end of each limit rod is fixedly connected to the side wall of the crankcase body, and each limit rod is movably sleeved on the side wall of the movable plate.

[0010] Preferably, a plurality of reinforcing rods are fixedly provided on the inner wall of the annular steel ring, and the other end of each of the reinforcing rods is fixedly connected to the bearing ring.

[0011] Preferably, a plurality of mounting plates are fixedly provided on the side wall of the crankcase body, and a threaded hole is formed on the side wall of each mounting plate.

[0012] In the above technical solution, the technical effects and advantages provided by the utility model are:

[0013] 1. The utility model provides two plug-in plates and a plurality of positioning rods, and the two plug-in plates are plugged into the corresponding convex slots. The plurality of positioning rods are pushed to move by a pushing mechanism, and the movement of the plurality of positioning rods can be smoothly plugged into the corresponding positioning holes, so that the two plug-in plates can be positioned. The reverse driving pushing mechanism can also smoothly take out the two plug-in plates, so that the user can install and disassemble the cylinder connecting seat conveniently, and the installation and disassembly convenience of the cylinder connecting seat is improved.

[0014] 2. The utility model provides a pushing mechanism, which includes a U-shaped plate, a screw rod, a crank and a movable plate. Turning the crank can drive the screw rod to rotate, and when the screw rod rotates, it can drive the movable plate to move. When the movable plate moves, it can drive multiple positioning rods to move smoothly, thereby ensuring that multiple positioning rods are quickly plugged into the corresponding positioning holes.

[0015] 3. The utility model provides two limit plates, both of which are fixedly arranged inside the corresponding convex slots, and the side walls of each limit plate are provided with limit slots. After the two plug-in plates are plugged into the corresponding convex slots, they can be smoothly fitted into the corresponding limit slots, and then the two plug-in plates can match the corresponding limit slots, thereby supporting the two plug-in plates and ensuring that multiple positioning rods can position the plug-in plates. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present utility model. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0017] Figure 1 It is a cross-sectional structural schematic diagram of the utility model;

[0018] Figure 2 It is a side view structural schematic diagram of the utility model;

[0019] Figure 3 For the utility model Figure 1 A three-dimensional view of the limiting plate.

[0020] Description of reference numerals:

[0021] 1. Crankcase body; 2. Positioning rod; 3. Annular steel ring; 4. Bearing ring; 5. Cylinder connecting seat; 6. Fixed plate; 7. Insert plate; 8. U-shaped plate; 9. Screw; 10. Crank handle; 11. Moving plate; 12. Limiting plate; 13. Limiting groove; 14. Limiting rod; 15. Reinforcing rod; 16. Mounting plate. DETAILED DESCRIPTION

[0022] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0023] The utility model embodiment discloses an oil-free air compressor crankcase.

[0024] The utility model provides Figure 1-Figure 2 The crankcase of an oil-free air compressor shown in the figure comprises a crankcase body 1 and a plurality of positioning rods 2, an annular hole is provided on the side wall of the crankcase body 1, an annular steel ring 3 is fixedly provided on the inner wall of the annular hole, a bearing ring 4 is provided inside the annular steel ring 3, a cylinder connecting seat 5 is provided above the crankcase body 1, two fixing plates 6 are fixedly provided at the bottom of the cylinder connecting seat 5, a plug plate 7 is fixedly provided at the bottom of each fixing plate 6, two convex slots are provided on the side wall of the crankcase body 1, each plug plate 7 is movably inserted into the interior of the corresponding convex slot, a plurality of positioning holes are provided on the side wall of each plug plate 7, each positioning rod 2 is movably sleeved on the side wall of the crankcase body 1, one end of each positioning rod 2 is plugged into the interior of the corresponding positioning hole, a pushing mechanism is provided on the side wall of the crankcase body 1, and each positioning rod 2 matches the pushing mechanism.

[0025] In order to ensure that multiple positioning rods 2 can be quickly inserted into the corresponding positioning holes, Figure 1-Figure 2As shown, the pushing mechanism includes a U-shaped plate 8, a screw rod 9, a crank handle 10 and a movable plate 11. The U-shaped plate 8 is fixedly arranged on the side wall of the crankcase body 1, the screw rod 9 is rotatably sleeved on the side wall of the U-shaped plate 8, the crank handle 10 is fixedly connected to one end of the screw rod 9, and the other end of the screw rod 9 is rotatably connected to the side wall of the crankcase body 1. The movable plate 11 is threadedly sleeved on the rod wall of the screw rod 9, and the other end of each positioning rod 2 is fixedly connected to the movable plate 11.

[0026] In order to support the two plug boards 7 and ensure that the multiple positioning rods 2 can position the plug boards, Figure 1 and Figure 3 As shown, a limiting plate 12 is fixedly provided on the inner wall of each convex slot, a limiting groove 13 is provided inside each limiting plate 12 , and each plug plate 7 matches with the corresponding limiting groove 13 .

[0027] In order to limit the movement of the moving plate 11 and ensure that the moving plate 11 can drive the plurality of positioning rods 2 to move stably, Figure 1-Figure 2 As shown, two limiting rods 14 are fixedly provided on the inner wall of the U-shaped plate 8 , and the other end of each limiting rod 14 is fixedly connected to the side wall of the crankcase body 1 , and each limiting rod 14 is movably sleeved on the side wall of the movable plate 11 .

[0028] In order to fix the bearing ring 4 and ensure the stability of the bearing ring 4, Figure 1 As shown, a plurality of reinforcing rods 15 are fixedly provided on the inner wall of the annular steel ring 3 , and the other end of each reinforcing rod 15 is fixedly connected to the bearing ring 4 .

[0029] Finally, in order to be able to fix the crankcase body 1, as shown in FIG. Figure 1-Figure 2 As shown, a plurality of mounting plates 16 are fixedly provided on the side wall of the crankcase body 1 , and a threaded hole is provided on the side wall of each mounting plate 16 .

[0030] The above only describes some exemplary embodiments of the present invention by way of illustration. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A crankcase for an oil-free air compressor, comprising a crankcase body (1) and a plurality of positioning rods (2), characterized in that: The side wall of the crankcase body (1) is provided with an annular hole, the inner wall of the annular hole is fixedly provided with an annular steel ring (3), the interior of the annular steel ring (3) is provided with a bearing ring (4), the top of the crankcase body (1) is provided with a cylinder connection seat (5), the bottom of the cylinder connection seat (5) is fixedly provided with two fixing plates (6), the bottom of each fixing plate (6) is fixedly provided with an insert plate (7), the side wall of the crankcase body (1) is provided with two convex slots, each insert plate (7) is movably inserted into the interior of the corresponding convex slot, the side wall of each insert plate (7) is provided with a plurality of positioning holes, each positioning rod (2) is movably sleeved on the side wall of the crankcase body (1), one end of each positioning rod (2) is inserted into the interior of the corresponding positioning hole, the side wall of the crankcase body (1) is provided with a pushing mechanism, and each positioning rod (2) matches the pushing mechanism.

2. The oil-free air compressor crankcase according to claim 1, characterized in that: The pushing mechanism comprises a U-shaped plate (8), a screw rod (9), a crank handle (10) and a movable plate (11); the U-shaped plate (8) is fixedly arranged on the side wall of the crankcase body (1); the screw rod (9) is rotatably sleeved on the side wall of the U-shaped plate (8); the crank handle (10) is fixedly connected to one end of the screw rod (9); the other end of the screw rod (9) is rotatably connected to the side wall of the crankcase body (1); the movable plate (11) is threadedly sleeved on the rod wall of the screw rod (9); and the other end of each positioning rod (2) is fixedly connected to the movable plate (11).

3. The oil-free air compressor crankcase according to claim 1, characterized in that: A limiting plate (12) is fixedly arranged on the inner wall of each convex slot, a limiting groove (13) is provided inside each limiting plate (12), and each plug plate (7) matches the corresponding limiting groove (13).

4. The oil-free air compressor crankcase according to claim 2, characterized in that: Two limiting rods (14) are fixedly arranged on the inner wall of the U-shaped plate (8), the other end of each limiting rod (14) is fixedly connected to the side wall of the crankcase body (1), and each limiting rod (14) is movably sleeved on the side wall of the movable plate (11).

5. The oil-free air compressor crankcase according to claim 1, characterized in that: A plurality of reinforcing rods (15) are fixedly arranged on the inner wall of the annular steel ring (3), and the other end of each reinforcing rod (15) is fixedly connected to the bearing ring (4).

6. The oil-free air compressor crankcase according to claim 1, characterized in that: A plurality of mounting plates (16) are fixedly arranged on the side wall of the crankcase body (1), and a threaded hole is provided on the side wall of each mounting plate (16).

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