Medium efficiency filter convenient to install

Abstract

The utility model relates to the technical field of medium efficiency filters, in particular to a medium efficiency filter convenient to mount, which comprises a mounting frame, flexible filter cotton is arranged in the mounting frame, mounting plates are adhered to two sides of the flexible filter cotton, a baffle is fixedly connected to the front end of each mounting plate, a slider is fixedly connected to the outer side of each mounting plate, and a transmission rod is rotatably connected in each slider. A nut is coaxially fixed to the front end of the transmission rod, a first bevel gear is coaxially fixed to the transmission rod, adjusting rods are arranged on the two sides of the first bevel gear, a second bevel gear is coaxially fixed to one end of each adjusting rod, the other end of each adjusting rod is in threaded connection with an inner threaded cylinder, and one end of each inner threaded cylinder penetrates through the side wall of the corresponding sliding block and is in sliding connection with the sliding block; a sliding groove is formed in the inner side wall of the mounting frame, and grooves are formed in the two sides of the inner side wall of the sliding groove. According to the utility model, the sliding block and the sliding chute are in guide fit, and the internal thread cylinder is driven to be locked by rotating the screw cap, so that a worker can conveniently install the medium-efficiency filter, and the replacement efficiency of the flexible filter cotton is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of medium efficiency filter, specifically to a medium efficiency filter convenient to install. BACKGROUND

[0002] The medium efficiency filter is a key component in the air purification system, and is widely used in clean workshops, hospitals and other places. In the prior art, the medium efficiency filter is usually fixed in the mounting frame by screws or buckles. However, these fixing methods need to use tools or perform multiple locking operations, which is time-consuming and laborious. When disassembling, the fixing parts need to be removed one by one, and the flexible filter cotton replacement efficiency is low. Moreover, when there is a machining error in the size of the mounting frame, it is difficult to achieve tight fit through rigid structure, which easily leads to air leakage problem. Therefore, there are still defects and deficiencies in the prior art. SUMMARY

[0003] The utility model provides a medium efficiency filter convenient to install to solve the problem in the prior art.

[0004] In order to solve the above technical problems, the utility model adopts the following technical scheme: a medium efficiency filter convenient to install, comprising a mounting frame, a flexible filter cotton is arranged in the mounting frame, mounting plates are arranged on both sides of the flexible filter cotton, a baffle is fixedly connected to the front end of the mounting plate, a sliding block with T-shaped cross section is fixedly connected to the outer side of the mounting plate, the sliding block is hollow inside, a transmission rod is rotatably connected in the length direction of the sliding block, the front end of the transmission rod extends to the outer side of the baffle and is coaxially fixed with a nut, a first bevel gear is coaxially fixed on the transmission rod, adjusting rods are rotatably connected to both sides of the first bevel gear, a second bevel gear is coaxially fixed on the end of the adjusting rod close to the first bevel gear, the second bevel gear is engaged with the first bevel gear, an internally threaded cylinder is threadedly connected to the other end of the adjusting rod, the outer contour of the internally threaded cylinder is rectangular, and the end of the internally threaded cylinder away from the adjusting rod penetrates through the side wall of the sliding block and is slidably connected with the sliding block.

[0005] Preferably, the end of the internally threaded cylinder away from the adjusting rod is conical.

[0006] Preferably, the tail end of the sliding block and the mounting plate is arc-shaped.

[0007] Preferably, a first fixed plate corresponding to the position of the transmission rod is fixedly connected in the sliding block, and the transmission rod penetrates through the first fixed plate and is rotatably connected with the first fixed plate.

[0008] Preferably, a second fixed plate corresponding to the position of the adjusting rod is fixedly connected in the sliding block, and the adjusting rod penetrates through the second fixed plate and is rotatably connected with the second fixed plate.

[0009] The beneficial effects of this utility model are as follows: (1) This utility model uses the guide cooperation between the slider and the groove, combined with the rotating nut to drive the internal threaded cylinder to lock, which makes it easier for workers to install medium-efficiency filters and improves the replacement efficiency of flexible filter cotton. Secondly, since the two mounting plates are flexibly connected by the flexible filter cotton, the distance between the two mounting plates can be adjusted within a certain range, so that the mounting plates and the mounting frame can fit tightly together, thereby reducing air leakage; (2) The tapered end of the internal threaded cylinder and the arc end of the slider form a double guide system, which makes it easier for workers to operate. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the structure of this utility model;

[0011] Figure 2 This is a schematic diagram of the internal structure of this utility model;

[0012] Figure 3 This is a schematic diagram of the structure of the present invention from the front view.

[0013] Figure 4 for Figure 3 A schematic diagram of the structure viewed in section aa;

[0014] Figure 5 This is a schematic diagram of the mounting frame of this utility model.

[0015] Reference numerals: 1. Mounting frame, 2. Flexible filter cotton, 3. Mounting plate, 4. Baffle, 5. Slider, 6. Transmission rod, 7. Nut, 8. First bevel gear, 9. Adjusting rod, 10. Second bevel gear, 11. Internal threaded cylinder, 12. Slide groove, 13. Groove, 14. First fixing plate, 15. Second fixing plate. Detailed Implementation

[0016] The present invention will now be further described with reference to the accompanying drawings.

[0017] like Figures 1-5As shown, this utility model provides an easy-to-install medium-efficiency filter, including a mounting frame 1, a flexible filter cotton 2 inside the mounting frame 1, mounting plates 3 glued to both sides of the flexible filter cotton 2, a baffle 4 fixedly connected to the front end of the mounting plate 3, and a T-shaped slider 5 fixedly connected to the outer side of the mounting plate 3. The slider 5 is hollow inside, and a transmission rod 6 rotatably connected inside the slider 5 along the length direction of the slider 5. The front end of the transmission rod 6 extends to the outer side of the baffle 4 and is coaxially fixed with a nut 7. A first bevel gear 8 is coaxially fixed on the transmission rod 6. Adjusting rods 9 are provided on both sides of the gear 8 and are rotatably connected to the slider 5. A second bevel gear 10 that meshes with the first bevel gear 8 is coaxially fixed at one end of the adjusting rod 9 near the first bevel gear 8. An internal threaded cylinder 11 is threaded to the other end of the adjusting rod 9. The outer contour of the internal threaded cylinder 11 is rectangular. The end of the internal threaded cylinder 11 away from the adjusting rod 9 passes through the side wall of the slider 5 and is slidably connected to the slider 5. A sliding groove 12 that matches the slider 5 is provided on the inner side wall of the mounting frame 1. Grooves 13 that correspond to the internal threaded cylinder 11 are provided on both sides of the inner side wall of the sliding groove 12.

[0018] Specifically, during use, the mounting frame 1 is fixed at the air inlet, and the sliders 5 on both sides are aligned with the grooves 12 of the mounting frame 1 and inserted into the grooves 12 until the baffle 4 contacts the front end of the mounting frame 11. At this time, the internal threaded cylinder 11 is aligned with the groove 13. Then, the nut 7 is rotated, and the nut 7 drives the first bevel gear 8 to rotate through the transmission rod 6. The first bevel gear 8 drives the adjusting rod 9 to rotate through the second bevel gear 10. The internal threaded cylinder 11 extends outward under the thread drive, so that the end of the internal threaded cylinder 11 is inserted into the groove 13. This makes it easier for workers to install the medium-efficiency filter and improves the replacement efficiency of the flexible filter cotton 2. Secondly, since the two mounting plates 3 are flexibly connected by the flexible filter cotton 2, the distance between the two mounting plates 3 can be adjusted within a certain range. This can accommodate mounting frames 1 of different sizes, so that the mounting plates 3 and the mounting frame 1 can fit tightly, thereby reducing air leakage.

[0019] In some embodiments, the end of the internally threaded cylinder 11 away from the adjusting rod 9 is tapered, and the tapered end serves as a guide, thereby guiding the internally threaded cylinder 11 into the groove 13.

[0020] In some embodiments, the tail ends of the slider 5 and the mounting plate 3 are arc-shaped, and the arc-shaped tail ends serve as guides, thereby facilitating the insertion of the slider 5 into the groove 12.

[0021] In some embodiments, the meshing surfaces of the first bevel gear 8 and the second bevel gear 10 have self-locking properties, thereby preventing airflow vibration from causing the internal threaded cylinder 11 to retract.

[0022] In some embodiments, a first fixing plate 14 corresponding to the position of the transmission rod 6 is fixedly connected inside the slider 5. The transmission rod 6 passes through the first fixing plate 14 and is rotatably connected to the first fixing plate 14. The transmission rod 6 is rotatably connected to the slider through the first fixing plate 14.

[0023] In some embodiments, a second fixing plate 15 corresponding to the position of the adjusting rod 9 is fixedly connected inside the slider 5. The adjusting rod 9 passes through the second fixing plate 15 and is rotatably connected to the second fixing plate 15. The adjusting rod 9 is rotatably connected to the slider 5 through the second fixing plate 15.

[0024] The above embodiments can be combined with each other.

[0025] The above embodiments are not intended to limit the shape, material, structure, etc. of this utility model in any way. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of this utility model shall fall within the protection scope of this utility model.

Claims

1. A medium-efficiency filter that is easy to install, comprising a mounting frame, wherein flexible filter cotton is disposed within the mounting frame, characterized in that: Both sides of the flexible filter cotton are attached with mounting plates, the front end of the mounting plate is fixedly connected with a baffle, the outer side of the mounting plate is fixedly connected with a sliding block in T-shaped cross section, the sliding block is hollow inside, a transmission rod is rotatably connected inside the sliding block and is arranged along the length direction of the sliding block, the front end of the transmission rod extends to the outer side of the baffle and is coaxially fixed with a nut, a first bevel gear is coaxially fixed on the transmission rod, adjusting rods are rotatably connected on both sides of the first bevel gear, a second bevel gear is coaxially fixed on the end of the adjusting rod close to the first bevel gear and is engaged with the first bevel gear, the other end of the adjusting rod is threadedly connected with an internally-threaded cylinder, the outer contour of the internally-threaded cylinder is rectangular, the end of the internally-threaded cylinder away from the adjusting rod penetrates through the side wall of the sliding block and is slidingly connected with the sliding block. A sliding groove is formed on the inner side wall of the mounting frame and is matched with the sliding block, recesses corresponding to the internally-threaded cylinder are formed on both sides of the inner side wall of the sliding groove.

2. A medium efficiency filter for easy installation according to claim 1, characterized in that: The end of the internally-threaded cylinder away from the adjusting rod is conical.

3. A medium efficiency filter for easy installation according to claim 1, characterized in that: The tail end of the sliding block and the mounting plate is arc-shaped.

4. The easy-to-mount medium efficiency filter of claim 1, wherein: A first fixed plate corresponding to the position of the transmission rod is fixedly connected inside the sliding block, the transmission rod penetrates through the first fixed plate and is rotatably connected with the first fixed plate.

5. The easy-to-mount medium efficiency filter of claim 1, wherein: A second fixed plate corresponding to the position of the adjusting rod is fixedly connected inside the sliding block, the adjusting rod penetrates through the second fixed plate and is rotatably connected with the second fixed plate.

Images