Novel multi-section combined type anti-explosion flow guide ring device

Abstract

The utility model discloses a novel multi-section combined explosion-proof flow guide ring device, which relates to the technical field of fan flow guide rings and comprises a flow guide ring main body, a connecting section is fixedly sleeved on the outer side of the flow guide ring main body close to the rear side, and a plurality of annularly distributed mounting holes are arranged on the front side of the flow guide ring main body close to the edge. The position, close to the rear side, of the outer side of the connecting section is fixedly sleeved with a sheath, the inner side of the sheath is movably sleeved with an extension mechanism, the extension mechanism comprises an extension section and a motor, and the outer side of the extension section is movably sleeved with the inner side of the sheath. According to the novel multi-section combined type anti-explosion flow guide ring device, the worm is driven by the motor to rotate, then the extending section moves back and forth in the sheath, the total length of the connecting section and the extending section is controlled, the sliding mode of the groove and the shaft is adopted, the problem that friction is large due to the fact that a screw rod mode is adopted is solved, and the service life of the flow guide ring device is prolonged. And the service life of parts is prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to fan flow guide ring technical field, especially in new type multistage combined formula explosion -proof flow guide ring device. BACKGROUND

[0002] Fan flow guide ring is usually installed at the air inlet or air outlet of the fan, which is used to optimize the direction and speed of airflow. It changes the angle and speed of airflow, so that the airflow enters or leaves the fan impeller more uniformly, thereby improving the overall efficiency and performance of the fan.

[0003] Chinese patent document CN119333427A discloses a fan flow guide ring, a wind guide device and a wind guide device control method, belonging to the field of air flow guide. The fan flow guide ring includes at least one telescopic unit. Each telescopic unit includes a first segment and a second segment, and an adjusting device. The first segment and the second segment are sleeved, and the adjusting device is connected to the first segment and the second segment respectively. The adjusting device changes the length of the flow guide ring by adjusting the sleeve length of the sleeve part of the first segment and the second segment. Therefore, the length of the flow guide ring can be adjusted according to the different wind speeds of the fan, which can improve the efficiency of the fan while reducing the noise generated by the fan.

[0004] The existing technology has the following problems:

[0005] The fan flow guide ring uses a screw rod and a nut to adjust the telescopic unit, but this method causes wear and tear of the components due to friction between the screw rod and the nut, which may cause the phenomenon of thread slipping. INVENTION CONTENTS

[0006] The utility model provides a new type multistage combined formula explosion -proof flow guide ring device to solve the problems in the above -mentioned background art.

[0007] To solve the above technical problems, the utility model adopts the following technical scheme:

[0008] A new type multistage combined formula explosion -proof flow guide ring device, including flow guide ring main part, the position of the outer side of flow guide ring main part is close to the back and is fixed with the sleeve of connecting section, the position of the front side of flow guide ring main part is close to the edge and is set up with a plurality of ring distribution's mounting hole, the position of the outer side of connecting section is close to the back and is fixed with the sleeve of sheath, the inner side of sheath is movably sleeved with extension mechanism;

[0009] The extension mechanism includes an extension segment and a motor, the outer side of the extension segment is movably sleeved in the inner side of the sheath, the outer side of the extension segment is rotatably connected with a rotating sleeve, a plurality of straight grooves are arranged in the side wall of the sheath in a ring distribution, a plurality of inclined grooves are arranged in the inner side of the rotating sleeve in a ring distribution, and the outer side of the extension segment is slidably connected to the inner side of the straight grooves and the inclined grooves through a circular shaft.

[0010] Preferably, a plurality of annularly distributed telescopic rods are fixedly connected to the outer middle rear position of the extension section, and the front end of the telescopic rods is fixedly connected to the outer side of the sheath near the front side.

[0011] Preferably, the inner side of the rotating sleeve is provided with a plurality of annularly distributed needle rollers near the front and rear edges.

[0012] Preferably, a locking block is fixedly connected to the outer side of the rotating sleeve near the bottom, a worm gear segment is movably sleeved on the outer side of the locking block, rotating seats are slidably connected to the front and rear sides of the worm gear segment, a worm is meshed with the lower side of the worm gear segment, and the right side of the worm is fixedly connected to the output end of the motor.

[0013] Preferably, a rubber sleeve is fixedly connected between the outer side of the card block and the inner side of the worm gear section.

[0014] Preferably, limit blocks are fixedly connected to the inner front and rear sides of the rotating seat near the upper left and upper right sides.

[0015] Preferably, the connecting section, sheath, and extension section are made of copper, and the main body of the guide ring is made of cold-rolled steel plate.

[0016] Due to the adoption of the above technical solution, the technological progress achieved by this utility model compared to the prior art is as follows:

[0017] 1. This utility model provides a novel multi-segment combined explosion-proof guide ring device, which adopts the cooperation of a guide ring body, connecting section, sheath, extension mechanism, extension section, rotating sleeve, straight groove, inclined groove, locking block, telescopic rod, worm gear section, rotating seat, motor and worm. The motor drives the worm to rotate, thereby causing the extension section to move back and forth within the sheath, thereby controlling the total length of the connecting section and the extension section. The sliding form between the groove and the shaft solves the problem of high friction caused by the screw form and extends the service life of the components.

[0018] 2. This utility model provides a novel multi-segment combined explosion-proof guide ring device, which adopts the combination of guide ring body, connecting section, sheath and extension section. The guide ring body is made by stretching steel plate, then the throat is cut off, and the cut-off part is replaced by connecting section made of copper. The strength of the guide ring is guaranteed, and the copper plate area of ​​the overlapping part with the impeller is also increased. Compared with the traditional method of directly stretching copper plate, the strength is improved, or compared with the method of wrapping a layer of copper on the guide ring mouth, the explosion-proof performance is improved. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0020] Figure 2 This is a partial cross-sectional three-dimensional structural schematic diagram of the present invention;

[0021] Figure 3 This is a three-dimensional structural diagram of the extension section of this utility model;

[0022] Figure 4 This is a partial cross-sectional three-dimensional structural diagram of the rotating sleeve part of this utility model;

[0023] Figure 5 This is a partial cross-sectional three-dimensional structural diagram of the motor part of this utility model.

[0024] In the diagram: 1. Guide ring body; 2. Connecting section; 3. Mounting hole; 4. Sheath; 5. Extension mechanism; 51. Extension section; 52. Rotating sleeve; 53. Straight groove; 54. Inclined groove; 55. Locking block; 56. Telescopic rod; 57. Worm gear section; 58. Rotating seat; 59. Motor; 510. Worm. Detailed Implementation

[0025] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0026] like Figures 1-5 As shown, a novel multi-segment combined explosion-proof guide ring device includes a guide ring body 1, a connecting segment 2 fixedly sleeved on the outer side of the guide ring body 1 near the rear side, a number of annularly distributed mounting holes 3 opened on the front side of the guide ring body 1 near the edge, a protective sleeve 4 fixedly sleeved on the outer side of the connecting segment 2 near the rear side, and an extension mechanism 5 movably sleeved on the inner side of the protective sleeve 4.

[0027] The extension mechanism 5 includes an extension section 51 and a motor 59. The outer side of the extension section 51 is movably sleeved on the inner side of the sheath 4. The outer side of the extension section 51 is rotatably connected to a rotating sleeve 52. The side wall of the sheath 4 is provided with several annularly distributed straight grooves 53. The inner side of the rotating sleeve 52 is provided with several annularly distributed inclined grooves 54. The outer side of the extension section 51 is slidably connected to the inner side of the straight grooves 53 and the inclined grooves 54 through a round shaft.

[0028] It should be noted that rotating the rotating sleeve 52 causes the inclined groove 54 to rotate, which in turn causes the extension section 51 to move back and forth in the straight groove 53, thereby controlling the total length between the connecting section 2 and the extension section 51.

[0029] like Figure 4 As shown, several annularly distributed telescopic rods 56 are fixedly connected to the outer middle rear position of the extension section 51, and the front end of the telescopic rods 56 is fixedly connected to the outer side of the sheath 4 near the front side.

[0030] It should be noted that the telescopic rod 56 is used to stabilize the connection section 2 and the extension section 51, and to prevent gaps between the components from causing the extension section 51 to move.

[0031] like Figure 5 As shown, the inner side of the rotating sleeve 52 is provided with several annularly distributed needle rollers near the front and rear edges.

[0032] It should be noted that the needle rollers are used to reduce the friction between the rotating sleeve 52 and the sheath 4, thereby extending the service life of the components.

[0033] like Figure 5 As shown, a locking block 55 is fixedly connected to the outer side of the rotating sleeve 52 near the bottom. A worm gear section 57 is movably sleeved on the outer side of the locking block 55. Rotating seats 58 are slidably connected to the front and rear sides of the worm gear section 57. A worm 510 is meshed with the lower side of the worm gear section 57. The right side of the worm 510 is fixedly connected to the output end of the motor 59.

[0034] It should be noted that the motor 59 drives the worm 510 to rotate. When the worm 510 rotates, it drives the worm wheel section 57 to slide on the rotating seat 58, so that the rotating seat 58 drives the rotating sleeve 52 to rotate.

[0035] like Figure 5 As shown, a rubber sleeve is fixedly connected between the outer side of the locking block 55 and the inner side of the worm gear section 57.

[0036] It should be noted that the rubber sleeve is used to reduce the transmission of vibrations from the rotating sleeve 52 to the worm gear section 57 during the operation of the fan, which could cause the worm gear section 57 and the worm 510 to be damaged by mutual compression.

[0037] like Figure 5 As shown, limit blocks are fixedly connected to the inner front and rear sides of the rotating seat 58 near the upper left and upper right sides.

[0038] It should be noted that the limit block is used to limit the range of movement of the worm gear section 57, and to prevent the worm gear section 57 from sliding excessively on the rotating seat 58, which could cause the connection between the components to fall off.

[0039] like Figure 4 As shown, the connecting section 2, the sheath 4, and the extension section 51 are made of copper, while the main body 1 of the guide ring is made of cold-rolled steel plate.

[0040] It should be noted that the main body 1 of the guide ring, made of steel plate, improves the overall strength. At the same time, the cold-rolled steel plate has good elongation performance. The main body 1 of the guide ring and the connecting section 2 are connected together by welding. After welding, the surface is sprayed, but the parts made of copper do not need to be sprayed.

[0041] The working principle of this utility model is as follows: First, rotating the rotating sleeve 52 causes the inclined groove 54 to rotate, which in turn causes the extension section 51 to move back and forth within the straight groove 53, thereby controlling the total length between the connecting section 2 and the extension section 51. The motor 59 drives the worm gear 510 to rotate, and when the worm gear 510 rotates, it causes the worm wheel section 57 to slide on the rotating seat 58, causing the rotating seat 58 to drive the rotating sleeve 52 to rotate. The motor 59 then drives the worm gear 510 to rotate, which in turn causes the extension section 51 to move back and forth within the sheath 4, thereby controlling the total length between the connecting section 2 and the extension section 51. By adopting a groove-shaft sliding mechanism, the problem of high friction caused by using a screw mechanism is solved, extending the service life of the component. Finally, the guide ring body 1, made of steel plate, improves the overall strength. At the same time, the cold-rolled steel plate has good elongation performance. The guide ring body 1 and the connecting section 2 are connected by welding. After welding, the surface is sprayed, but the copper parts do not need to be sprayed. The guide ring body 1 is made by stretching steel plate, and then the throat is cut off. The cut-off part is replaced by the connecting section 2 made of copper. The strength of the guide ring is guaranteed, and the copper plate area overlapping with the impeller is also increased. Compared with the traditional method of directly stretching copper plate, the strength is improved, or compared with wrapping a layer of copper on the guide ring opening, the explosion resistance is improved.

[0042] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A novel multi-segment combined explosion-proof guide ring device, comprising a guide ring body (1), characterized in that: A connecting section (2) is fixedly sleeved on the outer side of the main body (1) near the rear side. Several ring-shaped mounting holes (3) are opened on the front side of the main body (1) near the edge. A protective sleeve (4) is fixedly sleeved on the outer side of the connecting section (2) near the rear side. An extension mechanism (5) is movably sleeved on the inner side of the protective sleeve (4). The extension mechanism (5) includes an extension section (51) and a motor (59). The outer side of the extension section (51) is movably sleeved on the inner side of the sheath (4). The outer side of the extension section (51) is rotatably connected to a rotating sleeve (52). The side wall of the sheath (4) is provided with several annularly distributed straight grooves (53). The inner side of the rotating sleeve (52) is provided with several annularly distributed inclined grooves (54). The outer side of the extension section (51) is slidably connected to the inner side of the straight grooves (53) and the inclined grooves (54) through a round shaft.

2. The novel multi-segment combined explosion-proof guide ring device according to claim 1, characterized in that: Several annularly distributed telescopic rods (56) are fixedly connected to the outer middle rear position of the extension section (51), and the front end of the telescopic rods (56) is fixedly connected to the outer side of the sheath (4) near the front side.

3. The novel multi-segment combined explosion-proof guide ring device according to claim 1, characterized in that: The inner side of the rotating sleeve (52) is provided with several annularly distributed needle rollers near the front and rear edges.

4. The novel multi-segment combined explosion-proof guide ring device according to claim 1, characterized in that: A locking block (55) is fixedly connected to the outer side of the rotating sleeve (52) near the bottom. A worm gear section (57) is movably sleeved on the outer side of the locking block (55). Rotating seats (58) are slidably connected to the front and rear sides of the worm gear section (57). A worm (510) is meshed with the lower side of the worm gear section (57). The right side of the worm (510) is fixedly connected to the output end of the motor (59).

5. A novel multi-segment combined explosion-proof guide ring device according to claim 4, characterized in that: A rubber sleeve is fixedly connected between the outer side of the card block (55) and the inner side of the worm gear section (57).

6. A novel multi-segment combined explosion-proof guide ring device according to claim 5, characterized in that: Limiting blocks are fixedly connected to the inner front and rear sides of the rotating seat (58) near the upper left and upper right sides.

7. The novel multi-segment combined explosion-proof guide ring device according to claim 1, characterized in that: The connecting section (2), sheath (4) and extension section (51) are made of copper, and the main body of the guide ring (1) is made of cold-rolled steel plate.

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