Roots blower convenient to maintain

Abstract

The utility model discloses a Roots blower convenient to maintain, and particularly relates to the technical field of Roots blowers, the Roots blower convenient to maintain comprises a Roots blower shell, the bottom of the Roots blower shell is fixedly connected with a blower support frame, one side end of the Roots blower shell is communicated with an air duct, one end part of the Roots blower shell is connected with a blower cover plate, and the other end part of the Roots blower shell is connected with an air duct. An air hole is formed in the middle of the fan cover plate, a lifting ring is fixedly arranged on the outer wall of the fan cover plate, four protruding pieces embedded into the front end of the Roots blower shell are annularly arranged on the edge of the fan cover plate at equal intervals, the four protruding pieces are divided into two sets, each set is composed of two protruding pieces, and the number of the protruding pieces is two. And a clamping mechanism is arranged at the edge of the front end part of the Roots blower shell and between the two lugs on each group. According to the fan cover plate, the clamping mechanism is designed, locking and unlocking of the fan cover plate can be achieved through the clamping mechanism, operation is easy, the assembling and disassembling mode of the fan cover plate is simpler, the assembling and disassembling time is shortened, and the maintenance efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of Roots blowers, and more specifically, the utility model relates to a Roots blower which is convenient for maintenance. Background Art

[0002] The Roots blower belongs to a positive displacement blower. The end faces of the impellers and the front and rear end covers of the blower. The principle is a rotary compressor that uses two lobe-shaped rotors to move relative to each other in a cylinder to compress and transport gas. This type of blower has a simple structure and is easy to manufacture. It is widely used in aquaculture aeration, sewage treatment aeration, cement transportation, and is more suitable for gas transportation and pressurization systems in low-pressure occasions. It can also be used as a vacuum pump, etc.

[0003] When the existing Roots blower needs to be repaired, usually the blower end cover needs to be disassembled. Since the common blower end covers on the market are connected by screws, it makes it extremely time-consuming during the disassembly and subsequent installation processes, and the operation is rather cumbersome, affecting the repair efficiency of the Roots blower. Summary of the Utility Model

[0004] In order to overcome the above-mentioned defects of the prior art, the utility model provides a Roots blower which is convenient for maintenance.

[0005] To achieve the above object, the utility model provides the following technical solution: A Roots blower which is convenient for maintenance, including a Roots blower housing. The bottom of the Roots blower housing is fixedly connected with a blower support frame, and one side end of the Roots blower housing is communicated with an air duct. One end of the Roots blower housing is connected with a blower cover plate. A wind hole is arranged in the middle of the blower cover plate, and a lifting ring is fixedly arranged on the outer wall of the blower cover plate. Four convex pieces that are embedded in the front end of the Roots blower housing are arranged at equal intervals in a ring shape at the edge of the blower cover plate. The four convex pieces are divided into two groups, and each group consists of two convex pieces. A clamping mechanism is arranged between the two convex pieces in each group at the front end edge of the Roots blower housing.

[0006] As a further improvement of the technical solution of the utility model, the top of the blower support frame and the outer wall of the bottom of the Roots blower housing are fixedly connected by welding or fixedly connected by screws.

[0007] As a further improvement of the technical solution of the utility model, a ring groove for the blower cover plate to be embedded is arranged at the front end edge of the Roots blower housing, and embedding grooves are arranged at the external positions corresponding to the four convex pieces at the front end edge of the Roots blower housing.

[0008] As a further improvement of the technical solution of the utility model, the lifting ring and the outer wall of the blower cover plate are fixedly connected by welding or fixedly connected by screws.

[0009] As a further improvement of the technical solution of the present utility model, the clamping mechanism includes an arc-shaped groove arranged inside the housing of the Roots blower. Arc-shaped clamping rods that are inserted into the interiors of two lugs are installed on the inner sides of both ends of the arc-shaped groove. A spring is fixedly connected between the ends of the two arc-shaped clamping rods, and a toggle rod is fixedly connected to the outer wall of the adjacent ends of the two arc-shaped clamping rods.

[0010] As a further improvement of the technical solution of the present utility model, a through hole for the arc-shaped clamping rod to pass through is arranged inside the lug, and one end of the toggle rod extends to the outside of the housing of the Roots blower.

[0011] As a further improvement of the technical solution of the present utility model, a driving motor is fixedly installed inside the housing of the Roots blower, and a blower impeller is connected to the output end of the driving motor close to the inner side of the blower cover plate.

[0012] Advantages of the present utility model:

[0013] The present utility model designs a clamping mechanism for the rapid assembly and disassembly of the blower cover plate. When the Roots blower needs to be repaired, the operator presses the two toggle rods on the clamping mechanism along the trajectory of the arc-shaped groove, so that the distance between the two toggle rods gradually becomes smaller and the spring is compressed. At this time, the two arc-shaped clamping rods passing through the two lugs gradually disengage from the lugs. When completely disengaged, the blower cover plate is not locked, and it can be removed by pulling it outward. After the repair is completed, the same operation is used to control the two toggle rods to approach and compress the spring. Then, the blower cover plate is inserted into the front end of the housing of the Roots blower, and the toggle rods are released. The spring returns to drive the ends of the two arc-shaped clamping rods to be inserted into the interiors of the lugs to complete the locking. It is easy to operate, the assembly and disassembly method of the blower cover plate is simpler, the assembly and disassembly time is reduced, and the repair efficiency is improved. Description of the Drawings

[0014] Figure 1 It is a structural schematic diagram of the present utility model.

[0015] Figure 2 It is a connection sectional view of the blower cover plate and the front end of the housing of the Roots blower in the present utility model.

[0016] Figure 3 It is a structural schematic diagram of the blower cover plate in the present utility model.

[0017] Figure 4 It is an internal structural schematic diagram of the housing of the Roots blower in the present utility model.

[0018] The reference numerals are: 1, Roots blower housing; 2, blower support frame; 3, air duct; 4, blower cover plate; 5, air holes; 6, lifting ring; 7, lug; 8, arc-shaped clamping rod; 9, arc-shaped groove; 10, toggle lever; 11, spring; 12, perforation; 13, drive motor; 14, blower fan blades. Detailed implementation manners

[0019] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.

[0020] As shown in the attached Figures 1-4 A Roots blower convenient for maintenance, including a Roots blower housing 1, a blower support frame 2 is fixedly connected to the bottom of the Roots blower housing 1, and an air duct 3 is communicated with one side end of the Roots blower housing 1. One end of the Roots blower housing 1 is connected with a blower cover plate 4. An air hole 5 is arranged in the middle of the blower cover plate 4, and a lifting ring 6 is fixedly arranged on the outer wall of the blower cover plate 4. Four lugs 7 embedded in the front end of the Roots blower housing 1 are arranged at equal intervals in a ring shape at the edge of the blower cover plate 4. The four lugs 7 are divided into two groups, and each group is composed of two lugs. A clamping mechanism is arranged between the two lugs 7 on each group at the edge of the front end of the Roots blower housing 1.

[0021] As shown in the attached Figure 1 As shown, the top of the blower support frame 2 is fixedly connected to the outer wall of the bottom of the Roots blower housing 1 by welding or by screws, which is convenient for the connection and fixation of the blower support frame 2, and further convenient for providing good support for the Roots blower housing 1.

[0022] As shown in the attached Figures 1-2 As shown, a circular groove for the blower cover plate 4 to be embedded is arranged at the edge of the front end of the Roots blower housing 1, and an embedding groove is arranged at the external position corresponding to the four lugs 7 embedded at the edge of the front end of the Roots blower housing 1, which is convenient for the blower cover plate 4 to be stably embedded at the front end of the Roots blower housing 1.

[0023] As shown in the attached Figures 1-3 As shown, the lifting ring 6 is fixedly connected to the outer wall of the blower cover plate 4 by welding or by screws, which is convenient for the connection and fixation of the lifting ring 6, and further convenient for removing the blower cover plate 4 by pulling the lifting ring 6 outwards when disassembling the blower cover plate 4. It should be noted that the actual position of the lifting ring 6 is not necessarily the position designed in this solution, and it can be designed at any position on the outer wall of the blower cover plate 4 according to actual needs.

[0024] As shown in the attachedFigures 1-3 As shown in the figure, the clamping mechanism includes an arc-shaped groove 9 provided inside the housing 1 of the Roots blower. Arc-shaped clamping rods 8 that are inserted into the inside of two tabs 7 are installed on the inner sides of both ends of the arc-shaped groove 9. A spring 11 is fixedly connected between the ends of the two arc-shaped clamping rods 8, and a toggle rod 10 is fixedly connected to the outer wall of the adjacent ends of the two arc-shaped clamping rods 8. A through hole 12 for the arc-shaped clamping rod 8 to pass through is provided inside the tab 7. One end of the toggle rod 10 extends to the outside of the housing 1 of the Roots blower. The provided clamping mechanism facilitates good locking when the blower cover plate 4 is installed, and can quickly unlock the blower cover plate 4 when maintenance is required, thereby facilitating the quick assembly and disassembly of the blower cover plate 4.

[0025] As shown in the appendix Figure 4 As shown in the figure, a driving motor 13 is fixedly installed inside the housing 1 of the Roots blower. A blower impeller 14 is connected to the output end of the driving motor 13 near the inner side of the blower cover plate 4.

[0026] Working principle: The present utility model designs a Roots blower that is convenient for maintenance. The specific structure is as shown in the appendix of the specification Figures 1-4 As shown in the figure, in this technical solution, a clamping mechanism for the quick assembly and disassembly of the blower cover plate 4 is designed. When maintenance of the Roots blower is required, by improving the efficiency of disassembling the blower cover plate 4, the effect of improving the maintenance efficiency is achieved. When disassembly is required, the operator presses the two toggle rods 10 on the clamping mechanism along the trajectory of the arc-shaped groove 9, so that the distance between the two toggle rods 10 gradually becomes smaller, and the spring 11 is compressed. At this time, the two arc-shaped clamping rods 8 passing through the two tabs 7 gradually disengage from the tabs 7. When completely disengaged, the blower cover plate 4 is not locked, and the blower cover plate 4 can be removed by pulling it outward. After the maintenance is completed, the same operation is used to control the two toggle rods 10 to approach and compress the spring 11. Then, the blower cover plate 4 is inserted into the front end of the housing 1 of the Roots blower, and the toggle rods 10 are released. The spring 11 resets to drive the ends of the two arc-shaped clamping rods 8 to be inserted into the inside of the tabs 7 to complete the locking. It is easy to operate, the assembly and disassembly method of the blower cover plate 4 is simpler, the assembly and disassembly time is reduced, and the maintenance efficiency is improved.

[0027] Among them, in the attached drawings of the disclosed embodiments of the present utility model, only the structures related to the disclosed embodiments of the present disclosure are involved. Other structures can refer to the general design. Without conflict, the same embodiment and different embodiments of the present utility model can be combined with each other;

[0028] Finally: The above description is only a preferred embodiment of the present utility model and is not used to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included in the protection scope of the present utility model.

Claims

1. A Roots blower that is easy to maintain, comprising a Roots blower housing (1), characterized in that: The bottom of the Roots blower housing (1) is fixedly connected to a blower support frame (2), and one side end of the Roots blower housing (1) is connected to a wind tube (3). One end of the Roots blower housing (1) is connected to a blower cover (4), a wind hole (5) is provided in the middle of the blower cover (4), and a lifting ring (6) is fixedly provided on the outer wall of the blower cover (4). Four protruding pieces (7) embedded in the front end of the Roots blower housing (1) are equidistantly provided in a circular shape at the edge of the blower cover (4), the four protruding pieces (7) are divided into two groups, each group consisting of two protruding pieces (7), and a clamping mechanism is provided between the two protruding pieces (7) in each group at the edge of the front end of the Roots blower housing (1).

2. The Roots blower easy to maintain according to claim 1 is characterized in that: The top of the blower support frame (2) is fixed to the bottom outer wall of the Roots blower housing (1) by welding or by screws.

3. The Roots blower easy to maintain according to claim 1 is characterized in that: An annular groove for embedding the blower cover plate (4) is provided at the front end edge of the Roots blower housing (1), and embedding grooves are provided at the front end edge of the Roots blower housing (1) at the external positions corresponding to the embedding of the four protruding pieces (7).

4. The Roots blower easy to maintain according to claim 1 is characterized in that: The lifting ring (6) is connected to the outer wall of the fan cover plate (4) by welding or by screw fixation.

5. The Roots blower easy to maintain according to claim 1 is characterized in that: The clamping mechanism comprises an arc-shaped groove (9) arranged inside the Roots blower housing (1), arc-shaped clamping rods (8) clamped into the inside of two protruding pieces (7) are installed on the inner sides of both ends of the arc-shaped groove (9), a spring (11) is fixedly connected between the ends of the two arc-shaped clamping rods (8), and a toggle rod (10) is fixedly connected to the outer walls of the adjacent ends of the two arc-shaped clamping rods (8).

6. The Roots blower easy to maintain according to claim 5, characterized in that: A through hole (12) for the arc-shaped clamping rod (8) to pass through is provided inside the protruding piece (7), and one end of the toggle rod (10) extends to the outside of the Roots blower housing (1).

7. The Roots blower easy to maintain according to claim 1 is characterized in that: A drive motor (13) is fixedly mounted inside the Roots blower housing (1), and a blower blade (14) is connected to an output end of the drive motor (13) near the inner side of the blower cover plate (4).

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