An air filter steel frame

Abstract

The utility model discloses an air filter field can be used for air filter steel frame, including outer fixed frame and inner fixed frame, the utility model discloses a steel frame is divided into outer fixed frame and inner fixed frame, and inner fixed frame is connected with air filter through the buckling plate, and outer fixed frame is fixed on the mounting surface through screw etc.

Description

Technical Field

[0001] This utility model relates to the field of air filter technology, specifically to a steel frame that can be used for air filters. Background Technology

[0002] An air filter is a device that uses porous filter materials to capture dust from a gas-solid two-phase flow and purify the gas. It purifies the air with low dust content and then sends it into the room to ensure the process requirements of clean rooms and the air cleanliness of general air-conditioned rooms.

[0003] When installing an air filter, the first step is to snap the steel frame's clips onto the air filter's corner brackets, and then fix the steel frame to the mounting surface with screws. However, this fixing method can easily cause damage to the air filter when it is bumped during daily use, as the air filter and the steel frame collide. Utility Model Content

[0004] The purpose of this section is to outline some aspects of the embodiments of this utility model and to briefly introduce some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be used to limit the scope of this utility model.

[0005] In view of the above and / or existing problems in steel frames for air filters, this utility model is proposed.

[0006] Therefore, the purpose of this utility model is to provide a steel frame that can be used for air filters. When the air filter is hit during use, the air filter causes the inner fixed frame to shift and compress the spring in the direction of the shift. The spring buffers the impact force, which can prevent the impact from the collision from causing the air filter to collide with the steel frame and causing damage to the air filter.

[0007] To solve the above-mentioned technical problems, according to one aspect of the present invention, the present invention provides the following technical solution:

[0008] A steel frame that can be used for air filters, comprising:

[0009] An external fixing frame is provided, with mounting plates installed on the symmetrical side walls of the external fixing frame. The mounting plates have multiple screw holes on their tops, and the external fixing frame has a sliding groove on its top. A fixing plate is installed inside the sliding groove, and a movable groove is provided at the center of the fixing plate. There is a gap between the bottom of the fixing plate and the bottom of the sliding groove.

[0010] An internal fixing frame is located inside the slide groove. A buckle plate is installed on the inner wall of the internal fixing frame for engaging with the air filter corner bracket. Multiple first springs are symmetrically installed on the front and rear side walls of the internal fixing frame. Two sets of first springs abut against the front and rear side walls of the internal fixing frame, respectively, with three springs in each set. Multiple second springs are symmetrically installed on the left and right side walls of the internal fixing frame. Two sets of second springs abut against the left and right side walls of the internal fixing frame, respectively, with three springs in each set. A fixing post is installed at the center of the bottom of the internal fixing frame. The fixing post penetrates the movable groove and extends into the gap. A connecting plate is installed at the bottom of the fixing post. The bottom of the connecting plate fits against the bottom of the slide groove, and the top of the connecting plate fits against the bottom of the fixing plate.

[0011] As a preferred embodiment of the steel frame for air filters described in this utility model, the inner fixed frame is equipped with a fixing bracket on its symmetrical sidewalls, the fixing bracket has a first ear plate on its front sidewall, the fixing bracket has a guide groove on its symmetrical sidewalls, one of the first ear plates is rotatably connected to a knob, and two first ear plates are rotatably connected to a threaded rod with opposite threads, and the knob and the threaded rod are coaxially fixedly connected.

[0012] As a preferred embodiment of the present invention for use in a steel frame for an air filter, it further includes clamps, two clamps located inside the two fixing frames respectively, rubber pads installed on the side walls of the clamps, and third ear plates installed on the symmetrical side walls of the clamps, the third ear plates extending through the guide groove, one of the third ear plates having a threaded hole on its side wall, the positive and negative threaded rod rotating through the threaded hole.

[0013] As a preferred embodiment of the steel frame for air filters described in this utility model, a second ear plate is installed on the rear side wall of the fixing frame, a guide rod is installed between the two second ear plates, and a guide hole is opened on the side wall of the third ear plate, through which the guide rod passes.

[0014] As a preferred embodiment of the steel frame for air filters described in this utility model, the outer wall of the knob is uniformly provided with a ring of dense teeth, the side wall of the first ear plate is provided with a T-shaped groove, and the side wall of the fixing frame is provided with two limiting holes respectively.

[0015] As a preferred embodiment of the steel frame for air filters described in this utility model, it further includes a limiting plate, which is slidably connected to the side wall of the first ear plate. The front end of the limiting plate has a limiting groove that mates with the knob. The inner wall of the limiting groove has a ring of densely spaced teeth. A T-shaped plate is installed at the bottom of the limiting plate, corresponding to the T-shaped groove, and is located inside the T-shaped groove. An L-shaped mounting bracket is installed at the top and rear end of the limiting plate. The top of the L-shaped mounting bracket has a pull rod, and a limiting rod is installed at the bottom of the pull rod. The limiting rod passes through the L-shaped mounting bracket and the limiting plate. A baffle is installed on the body of the limiting rod, and a third spring is installed on the top of the baffle. The top of the third spring abuts against the bottom of the L-shaped mounting bracket.

[0016] Compared with existing technologies: By dividing the steel frame into an external fixed frame and an internal fixed frame, the internal fixed frame is connected to the air filter via a buckle plate, while the external fixed frame is fixed to the mounting surface with screws, etc. Springs are installed on the four walls of the internal fixed frame, with the other end of each spring abutting against the inner wall of the external fixed frame. When the air filter is impacted during use, the air filter causes the internal fixed frame to shift and compress the springs in the direction of the shift. The springs buffer the impact force, preventing the air filter from colliding with the steel frame and causing damage to the air filter. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the present utility model will be described in detail below with reference to the accompanying drawings and detailed embodiments. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them:

[0018] Figure 1 This is a structural diagram of a steel frame that can be used in air filters according to the present invention.

[0019] Figure 2 This is a cross-sectional view of a steel frame external fixing frame for air filters according to the present invention;

[0020] Figure 3 This is a structural diagram of a fixed frame structure that can be used inside a steel frame of an air filter according to the present invention;

[0021] Figure 4 This is a cross-sectional view of a steel frame fixing frame that can be used in air filters according to the present invention.

[0022] Figure 5 This is a structural diagram of a steel frame limiting plate that can be used in air filters according to the present invention;

[0023] Figure 6 This is a schematic diagram of a buckle plate of different shapes that can be used in the steel frame of an air filter according to the present invention. Detailed Implementation

[0024] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0025] Secondly, this utility model is described in detail with reference to the schematic diagrams. When describing the embodiments of this utility model, for ease of explanation, the cross-sectional views showing the device structure may be partially enlarged, not according to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of this utility model. In addition, in actual manufacturing, the three-dimensional spatial dimensions of length, width, and depth should be included.

[0026] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.

[0027] This utility model provides a steel frame that can be used for air filters. When the air filter is hit during use, the air filter causes the inner fixed frame to shift and compress the spring in the direction of the shift. The spring buffers the impact force, which can prevent the impact from causing the air filter to collide with the steel frame and thus causing damage to the air filter.

[0028] Figure 1-5 The diagram shown is a structural schematic of one embodiment of the present invention that can be used in a steel frame for an air filter. Please refer to [link / reference]. Figures 1-5 One embodiment of the steel frame for an air filter includes an outer fixing frame 100, an inner fixing frame 200, a clamping plate 300, and a limiting plate 400.

[0029] An mounting plate 110 is installed on the symmetrical sidewalls of the outer fixing frame 100. Multiple screw holes 110a are formed on the top of the mounting plate 110. A sliding groove 120 is formed on the top of the outer fixing frame 100. A fixing plate 130 is installed inside the sliding groove 120. A movable groove 130a is formed at the center of the fixing plate 130. A gap 140 exists between the bottom of the fixing plate 130 and the bottom of the sliding groove 120. An inner fixing frame 200 is located inside the sliding groove 120. A snap-on plate 210 is installed on the inner wall of the inner fixing frame 200. The snap-on plate 210 is used to engage with the air filter corner bracket. Multiple first springs 220 are symmetrically installed on the front and rear sidewalls of the inner fixing frame 200. There are two sets of first springs 220, which abut against the front and rear sidewalls of the inner fixing frame 200 respectively. Each group of first springs 220 consists of three springs. Multiple second springs 230 are symmetrically installed on the left and right side walls of the inner fixing frame 200. There are two groups of second springs 230, each abutting against the left and right side walls of the inner fixing frame 200. Each group of second springs 230 consists of three springs. A fixing post 240 is installed at the center of the bottom of the inner fixing frame 200. The fixing post 240 penetrates the movable groove 130a and extends into the gap 140. A connecting plate 240a is installed at the bottom of the fixing post 240. The bottom of the connecting plate 240a is fitted with the bottom of the sliding groove 120, and the top of the connecting plate 240a is fitted with the bottom of the fixing plate 130. Not shown in the figure, the outer fixing frame 100 and the inner fixing frame 200 are both constructed of steel. In this embodiment, as... Figure 6 As shown, the buckle plate 210 can be in various shapes to be snapped and fixed with different models of air filters. In use, first snap the air filter corner bracket to the buckle plate 210, connect the air filter to the inner fixing frame 200, screw through the screw hole 110a and nail it into the mounting surface, and fix the outer fixing frame 100 on the mounting surface to complete the installation of the air filter. When the air filter is bumped during use, the air filter drives the inner fixing frame 200 to move inside the slide groove 120, the fixing post 240 to move inside the movable groove 130a, and the connecting plate 240a to move inside the gap 140. When the inner fixing frame 200 moves, it compresses the first spring 220 or the second spring 230 in the corresponding direction, which can buffer the collision in the horizontal direction and effectively prevent the air filter from being damaged due to collision during use.

[0030] A fixing frame 200 is symmetrically mounted with a fixing bracket 250. A first ear plate 250a is mounted on the front side wall of the fixing bracket 250. A guide groove 250b is formed on the symmetrical side wall of the fixing bracket 250. A knob 260 is rotatably connected to the side wall of one of the first ear plates 250a. A threaded rod 260a is rotatably connected between the two first ear plates 250a. The knob 260 and the threaded rod 260a are coaxially fixedly connected. Two clamping plates 300 are located inside the two fixing brackets 250 respectively. Rubber pads 310 are mounted on the side wall of the clamping plates 300. A third ear plate 320 is mounted on the symmetrical side wall of the clamping plates 300. The third ear plate 320 extends through the guide groove 250b. A threaded hole 320a is formed on the side wall of one of the third ear plates 320. The threaded rod 260a rotatably passes through the threaded hole 320a. A second ear plate 250c is mounted on the rear side wall of the fixing frame 250. Two second ear plates 250c... A guide rod 250c-1 is installed between 50c. Another third ear plate 320 has a guide hole 320b on its side wall. The guide rod 250c-1 passes through the guide hole 320b. Not shown in the figure, the inner fixing frame 200 extends out of the top of the outer fixing frame 100. The fixing bracket 250 is installed on the part of the inner fixing frame 200 that extends out of the top of the outer fixing frame 100. It does not affect the movement of the inner fixing frame 200 inside the slide groove 120. When the air filter is connected to the side wall of the inner fixing frame 200 by snapping the buckle plate 210 with the corner bracket, rotating the knob 260 drives the positive and negative thread rod 260a to rotate. The screw structure pushes the two clamping plates 300 closer to each other until the two clamping plates 300 clamp the air filter corner bracket. The rubber pad 310 increases the friction between the clamping plate 300 and the corner bracket, which can increase the firmness of the connection between the inner fixing frame 200 and the air filter.

[0031] The outer wall of the knob 260 is evenly provided with a ring of densely packed teeth. The side wall of the first ear plate 250a has a T-slot 250a-1. The side wall of the fixing bracket 250 has two limiting holes 250a-2. A limiting plate 400 is slidably connected to the side wall of the first ear plate 250a. The front end of the limiting plate 400 has a limiting groove 410 that mates with the knob 260. The inner wall of the limiting groove 410 has a ring of densely packed teeth. A T-plate 420 is installed at the bottom of the limiting plate 400, corresponding to the position of the T-slot 250a-1. The T-plate 420 is located inside the T-slot 250a-1. An L-shaped mounting bracket 430 is installed at the top and rear end of the L-shaped mounting bracket 430. The top of the L-shaped mounting bracket 430 has a pull rod 430a, and the bottom of the pull rod 430a is equipped with a limit rod 430b. The limit rod 430b passes through the L-shaped mounting bracket 430 and the limit plate 400. A baffle 430b-1 is installed on the body of the limit rod 430b, and a third spring 430b-2 is installed on the top of the baffle 430b-1. The top of the third spring 430b-2 abuts against the bottom of the L-shaped mounting bracket 430. In the initial state, the knob 260 is located inside the limit slot 410, and the limit rod 430b extends into the front limit hole 250a. Inside -2, when it is necessary to rotate knob 260, pulling the L-shaped mounting bracket 430 causes the limiting rod 430b to move upward. The limiting rod 430b is pulled out from inside the front limiting hole 250a-2, and causes the baffle 430b-1 to press the third spring 430b-2 upward. At this time, the limiting plate 400 is pushed to move backward, and knob 260 separates from inside the limiting slot 410. The pull rod 430a is released, and the third spring 430b-2 rebounds, pushing the baffle 430b-1 and the limiting rod 430b downward. The limiting rod 430b extends into the rear limiting hole 250a-2. At this time, the knob 260 is rotated. Rotating knob 260 drives the threaded rod 260a to rotate, adjusting the positions of the two clamping plates 300. After adjustment, pulling rod 430a drives the limiting rod 430b to be pulled out from the limiting hole 250a-2 at the rear, pushing the limiting plate 400 forward until knob 260 is embedded in the limiting slot 410. At this time, the third spring 430b-2 rebounds and pushes the limiting rod 430b downward into the limiting hole 250a-2 at the front. The outer wall teeth of knob 260 and the inner wall teeth of limiting slot 410 mesh with each other, limiting knob 260, that is, limiting clamping plate 300.

[0032] Although the present invention has been described above with reference to embodiments, various modifications can be made and components can be replaced with equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the features in the embodiments disclosed in this invention can be combined with each other in any way. The lack of an exhaustive description of these combinations in this specification is merely for the sake of brevity and resource conservation. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A steel frame that can be used in air filters, characterized in that, include: An external fixing frame (100) is provided, and mounting plates (110) are installed on the symmetrical side walls of the external fixing frame (100). The mounting plates (110) have multiple screw holes (110a) on the top. The external fixing frame (100) has a sliding groove (120) on the top. A fixing plate (130) is installed inside the sliding groove (120). A movable groove (130a) is provided at the center of the fixing plate (130). There is a gap (140) between the bottom of the fixing plate (130) and the bottom of the sliding groove (120). An internal fixing frame (200) is located inside the slide groove (120). A buckle plate (210) is installed on the inner wall of the internal fixing frame (200). The buckle plate (210) is used to engage with the air filter corner bracket. Multiple first springs (220) are symmetrically installed on the front and rear side walls of the internal fixing frame (200). There are two sets of first springs (220) that abut against the front and rear side walls of the internal fixing frame (200), respectively. Each set of first springs (220) consists of three springs. Multiple second springs (230) are symmetrically installed on the left and right side walls of the internal fixing frame (200). Two sets of springs (230) are respectively abutted against the left side wall and the right side wall of the inner fixed frame (200). Each set of the second springs (230) consists of three springs. A fixed post (240) is installed at the center of the bottom of the inner fixed frame (200). The fixed post (240) passes through the movable groove (130a) and extends into the gap (140). A connecting plate (240a) is installed at the bottom of the fixed post (240). The bottom of the connecting plate (240a) is in contact with the bottom of the sliding groove (120), and the top of the connecting plate (240a) is in contact with the bottom of the fixed plate (130).

2. A steel frame for air filters according to claim 1, characterized in that, The inner fixing frame (200) is equipped with a fixing bracket (250) on its symmetrical sidewalls. The fixing bracket (250) has a first ear plate (250a) on its front sidewall. The fixing bracket (250) has a guide groove (250b) on its symmetrical sidewalls. A knob (260) is rotatably connected to the sidewall of one of the first ear plates (250a). A threaded rod (260a) is rotatably connected between the two first ear plates (250a). The knob (260) and the threaded rod (260a) are coaxially fixedly connected.

3. A steel frame for air filters according to claim 2, characterized in that, It also includes two clamping plates (300) located inside the two fixing frames (250) respectively. Rubber pads (310) are installed on the side walls of the clamping plates (300). Third ear plates (320) are installed on the symmetrical side walls of the clamping plates (300). The third ear plates (320) extend through the guide groove (250b). One of the third ear plates (320) has a threaded hole (320a) on its side wall. The positive and negative threaded rod (260a) rotates through the threaded hole (320a).

4. A steel frame for air filters according to claim 3, characterized in that, A second ear plate (250c) is installed on the rear side wall of the fixing frame (250), and a guide rod (250c-1) is installed between the two second ear plates (250c). A guide hole (320b) is opened on the side wall of the other third ear plate (320), and the guide rod (250c-1) passes through the guide hole (320b).

5. A steel frame for air filters according to claim 2, characterized in that, The outer wall of the knob (260) is uniformly provided with a ring of dense teeth, the side wall of the first ear plate (250a) is provided with a T-shaped groove (250a-1), and the side wall of the fixing bracket (250) is provided with two limiting holes (250a-2).

6. A steel frame for use in air filters according to claim 5, characterized in that, It also includes a limiting plate (400), which is slidably connected to the side wall of the first ear plate (250a). The front end of the limiting plate (400) has a limiting groove (410) that cooperates with the knob (260). The inner wall of the limiting groove (410) has a ring of dense teeth. A T-plate (420) is installed at the bottom of the limiting plate (400) corresponding to the T-slot (250a-1). The T-plate (420) is located inside the T-slot (250a-1). The top end of the limiting plate (400) is installed with... An L-shaped mounting bracket (430) is provided. The top of the L-shaped mounting bracket (430) has a pull rod (430a). A limit rod (430b) is installed at the bottom of the pull rod (430a). The limit rod (430b) passes through the L-shaped mounting bracket (430) and the limit plate (400). A baffle (430b-1) is installed on the body of the limit rod (430b). A third spring (430b-2) is installed on the top of the baffle (430b-1). The top of the third spring (430b-2) abuts against the bottom of the L-shaped mounting bracket (430).

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