JPH0533819U - Filter device - Google Patents

Abstract

(57) [Summary] [Structure] A front filter and a rear filter housed in a casing and abuttingly engaged with a crimping frame fixed to the casing, and an operation mechanism portion for pressing the rear filter to the crimping frame side. The drive shaft rod for the front filter and the drive shaft rod for the rear filter are separately arranged, and the drive shaft rod for the rear filter is supported by the hollow pipe provided in the operation mechanism part of the front filter to smooth the weight filter. Enable operation. [Effect] The weight filter can be smoothly and surely mounted in the casing, and the device structure can be made compact and the installation space and maintenance space can be reduced.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a filter device in which a filter for a relatively heavy object placed in a single casing is mounted and fixed by a compact operating mechanism.

[0002]

[Prior Art]

 There is a filter device disclosed in Japanese Utility Model Publication No. 57-57778 as a filter device in which a filter housed in a casing is pressed against a crimping frame side and mounted in a casing. This technology has an actuation mechanism similar to the operation mechanism section applied to the filter device of the present invention, which will be described later, but it stores a single filter in a casing. Different. Further, as a filter device in which the drawbacks of the operating mechanism of Japanese Utility Model Publication No. 57-57778 are improved, there is one disclosed in Japanese Utility Model Publication No. 62-151924. This technique is characterized in that an interlocking cam mechanism is used for mounting the filter. However, like the above, a single filter is housed in the casing. JP-A-64-78200 is known as a known technique of a filter device in which two or more filters are housed in a casing (or housing). However, the present technology uses a large number of handles for mounting and fixing the filter, and thus has a problem that the structure is not compact and it takes time to mount the filter.

On the other hand, there is a filter device shown in FIGS. 7 and 8 as a conventional technique relatively close to the present invention. The front filter 2 and the rear filter 3 are inserted into the casing 1a from the opening / closing door 7 in series, move while being supported by the trochanter 28a supported by the support guide plate 27a, and are partitioned by the partition plate 4c. The crimping frame 4a and the rear filter pressing frame 4b are brought into contact with each other via a gasket 42. The front filter crimping frame 4a and the rear filter crimping frame 4b communicate with the introduction port 8a side and open their lower surfaces. The suspension rod 21a is composed of a set of four, which are arranged on the front, rear, left and right of the front filter 2 and the rear filter 3, respectively. The upper end side of each suspension rod 21a is pin-connected to the actuating arm 37, and the lower end side is held by the fastening metal fitting 24a via the spring 25a. The fastening metal 24a is cantilevered at its base end side to the support block plate 27a via a pin 26a, and its tip end side is in abutting engagement with the lower surfaces of the front and rear filters 2,3. The drive shaft rod 38 and the rotary shaft rod 39 arranged in parallel along both side surfaces of the front filter crimping frame 4a and the rear filter crimping frame 4b are connected to a shaft rod fixing member 43 fixed to the front filter crimping frame 4a and the like. It is movably supported and the operating arm 37 is fixed. An arm piece 40 is fixed to the front ends of the drive shaft rod 38 and the rotary shaft rod 39. A connecting rod 41 is erected between the arm pieces 40, 40 and is pin-connected. Further, as shown in FIG. 7, the casing 1a is provided with an outlet 9a in communication therewith. When the drive shaft rod 38 is rotated by the above structure, the suspension rod 21a is moved via the arm piece 40, the connecting rod 41, the rotary shaft rod 39, etc., and the front and rear filters 2 and 3 are connected to the front filter crimping frame 4a. Etc. and hold it firmly. The medium to be treated introduced into the casing 1a from the inlet 8a is adsorbed by the front and rear filters 2 and 3 and discharged from the outlet 9a.

[0004]

[Problems to be solved by the device]

 The front and rear filters 2, 3 are simultaneously fixed in the casing 1a by the filter device of the prior art described with reference to FIGS. 7 and 8. The fixing is performed only by rotating the single drive shaft rod 38. However, this filter device has the following problems. That is, the suspension rod 21a provided on the side of the drive shaft rod 38 can move up and down relatively easily because the turning torque of the drive shaft rod 38 directly acts on the suspension rod 21a. However, the suspension rod 21a connected to the rotary shaft rod 39 moves up and down by the operating force transmitted through the arm piece 40, the connecting rod 41, the arm piece 40, and the like. If the front and rear filters 2, 3 are relatively lightweight, no particular problem occurs. For example, in the case of a heavy filter such as a charcoal filter or a silver-carrying filter which is several times heavier than a normal filter, the front and rear filters can be used. It is difficult to move the filters 2 and 3 smoothly at the same time, and it is impossible to sufficiently press the front filter pressure bonding frame 4a and the like. On the other hand, as in the above-mentioned known technique, the filter is fixed by using a plurality of handles, or the drive shaft rods for the front filter 2 and the rear filter 3 are independently arranged along the vertical direction or the lateral direction. The problem is that the structure becomes complicated and the installation space and maintenance space become large.

The present invention solves the above-mentioned problems, and it reliably presses the front and rear filters of a comparatively heavy object to the pressing frame side to fix them in the casing, and the device structure is compacted. An object of the present invention is to provide a filter device that can reduce the installation space.

[0006]

[Means for Solving the Problems]

 In order to achieve the above-mentioned object, the present invention comprises a casing having openings for forming an inlet and an outlet for a medium to be treated, a front filter and a rear filter which are movably supported in the casing and arranged in front and rear, A filter device comprising a crimping frame communicating with an inlet side and having a lower surface opened and fixedly secured to the casing side, and an operating mechanism section for pushing the front filter and the rear filter to the crimping frame, The operating mechanism section includes a front filter operating mechanism section that engages with the front filter and a rear filter operating mechanism section that engages with the rear filter, and the front filter operating mechanism section includes the crimping frame. A drive shaft rod for a front filter, which is arranged along both left and right sides of the shaft and is rotatably supported by the crimping frame, and a hollow pipe connected to the shaft rod via a connecting rod; The front filter drive shaft rod and the suspension rod installed between the hollow pipe side and the tightening metal fitting that abuts on the lower surface of the switch and is rotatably supported on the stationary side of the device. The actuating mechanism section is provided along the left and right side surfaces of the crimping frame and is arranged in parallel on the left and right sides of the crimping frame, and is supported by the crimping frame so as to be rotatable. A rod, a tightening fitting that abuts and engages with the lower surface of the rear filter and is rotatably supported on the immovable side of the device, and a suspension installed between the drive shaft rod for the rear filter and the rotating shaft rod side. The filter device is characterized by a rod, and the rear filter drive shaft rod is rotatably supported in the hollow pipe.

[0007]

[Action]

 The front filter is pressed to the crimping frame side by the operation of the front filter drive shaft rod, and the rear filter is pressed to the crimping frame side by the operation of another rear filter drive shaft rod. Since the drive shafts are separate, they can be easily and sufficiently pressed and fixed to the crimping frame side even with a weight filter. On the other hand, the rear filter drive shaft rod is supported by penetrating through the hollow pipe that is connected to the front filter drive shaft rod, so the installation space for the rear filter drive shaft rod is reduced, and the size is reduced accordingly. ..

[0008]

【Example】

 Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a perspective view showing a detailed structure around a drive shaft rod for a rear filter and a hollow pipe of a main part of this embodiment, FIG. 2 is a front view of the same embodiment, and FIG. 3 is a sectional view taken along line AA of FIG. 4 is a left side view of the same embodiment, FIG. 5 is a rear view of the same embodiment, and FIG. 6 is a right side view of the same embodiment. The filter device of the present embodiment is roughly classified into a casing 1 for forming an inlet 8 and an outlet 9, an anterior filter 2 and a posterior filter 3 which are housed in a casing 1 so as to be freely inserted and withdrawn, and communicated with the inlet 8. Then, a crimping frame 4 forming an open portion (not shown) on the lower surface, a front filter operating mechanism 5 for pressing the front filter 2 to the crimping frame 4 side via a gasket 42, and a rear filter 3 via a gasket 42. It is composed of a post-filter actuation mechanism portion 6 and the like that presses it against the crimping frame 4 side. The pressure bonding frame is divided into a front filter pressure bonding frame 4A and a rear filter pressure bonding frame 4B by a partition plate 4C. Further, the casing 1 is provided with an opening / closing door 7 (FIG. 6) through which the front filter 2 and the rear filter 3 are put in and taken out. The medium to be treated enters the casing 1 through the inlet port 8, passes through the pressure bonding frame 4, is adsorbed by the front filter 2 and the rear filter 3, and is discharged through the outlet port 9.

Next, the front filter actuation mechanism 5 will be described with reference to FIGS. 1 to 4. The front filter drive shaft rod 10 is arranged along the front-rear direction on the right side surface of the front-filter crimping frame 4A for the front filter 2. The front filter drive shaft rod 10 is rotatably supported by shaft rod fixing members 11 fixed to the side surface of the front filter crimping frame 4A. On the other hand, a hollow pipe 12 is rotatably supported on the left side surface of the front filter crimping frame 4A by pipe fixing members 13, 13 fixed to the front filter crimping frame 4A. An arm piece 14 and an operating arm 15 are fixed to the front filter drive shaft rod 10, and an arm piece 16 and an operating arm 17 are also fixed to the hollow pipe 12. A connecting rod 18 is installed between the arm pieces 14 and 16 via pins 19 and 20. Four suspension rods 21 of the same shape are arranged in the vertical direction on the left, right, front and rear of the front filter crimping frame 4A. The suspension rod 21 is composed of an elongated rod-shaped member, and its upper side is pin-connected to the operating arms 15 and 17 by a pin 22. Further, the adjusting screw member 23 is connected to the lower side thereof. The adjusting screw member 23 is connected to the tightening fitting 24 via a spring 25. The spring 25 always urges the suspension rod 21 so as to press it downward. The tightening metal 24 abuts and engages with the lower surfaces of the front filter 2 and the rear filter 3, and the tightening metal 24 is cantilevered by the support block plate 27 by the pin 26. The support block plate 27 is fixed to the casing 1. A plurality of trochanters 28 are supported on the support block plate 27 so as to contact and support the lower surface of the front filter 2.

Next, the rear filter operating mechanism section 6 will be described. The drive shaft rod 29 for the rear filter is provided extending back and forth along the left side surfaces of the front filter crimping frame 4A and the rear filter pressing frame 4B of the front filter 2 and the rear filter 3, and extends from the front side to the middle portion. Are supported in the hollow pipe 12. Further, from the intermediate portion to the rear side, it is rotatably supported by the shaft rod fixing members 30, 30 fixed to the left side surface of the rear filter crimping frame 4B. On the other hand, a rotary shaft rod 31 is arranged on the right side surface of the rear filter crimping frame 4B along the front-rear direction, and is freely rotatable by the shaft rod fixing members 30, 30 fixed to the right side surface of the rear filter crimping frame 4B. Supported by. Further, the arm piece 32 and the operating arm 33 are fixed to the rear filter drive shaft rod 29 and the rotary shaft rod 31, respectively. Similarly to the front filter 2 side, four suspension rods 21 are arranged on the rear filter 3 side in the left-right and front-rear directions along the vertical direction. The suspension rod 21 is pin-connected to the operating arm 33 by a pin 22, and is connected to the support block plate 27 side via a fastening metal 24, a spring 25, and the like as in the front filter 2 side. A connecting rod 34 is installed between the left and right arm pieces 32, 32 via pins 35, 36. A trochanter 28 is pivotally supported on the support block plate 27, similarly to the front filter 2 side.

Next, the operation of this embodiment will be described. First, the case where the front filter 2 is fixed will be described. When the front filter drive shaft rod 10 is rotated, the arm piece 14 and the operating arm 15 fixed to the front filter drive shaft rod 10 are rotated. At the same time, the connecting rod 18 connected to the arm piece 14 by the pin 19 moves, and the hollow pipe 12 and the actuating arm 17 fixed thereto rotate via the arm piece 16 on the side of the hollow pipe 12 connected to the connecting rod 18 by the pin 20. To do. Four suspension rods 21 are connected to the operating arms 15 and 17 by pins 22. Although not shown in detail in the drawing, each of the operating arms 15 and 17 is moved at an angle such that the suspension rod 21 is moved upward by the rotation of the front filter drive shaft rod 10 (eg, counterclockwise rotation). The filter drive shaft rod 10 and the hollow pipe 12 are fixed. Therefore, when the suspension rod 21 moves upward while pushing the spring 25, the fastening metal fitting 24 rotates and contacts the lower surface of the front filter 2. The front filter 2 is pushed up by the tightening fitting 24 and is pressed toward the front filter crimping frame 4A side. In this case, since the four suspension rods 21 move simultaneously, the four corners of the front filter 2 are evenly supported, and the front filter 2 is uniformly pressed and fixed by the front filter crimping frame 4A. Next, the fixing of the post filter 3 will be described. The rear filter drive shaft rod 29 passing through the hollow pipe 12 is rotated. As a result, the operating arm 33 and the arm piece 32 fixed to the rear filter drive shaft rod 29 rotate. The arm piece 32 is connected to the connecting rod 34 via the pin 35, and the connecting rod 34 is connected to the right arm piece 32 via the pin 36, so that the arm piece 32 rotates. As a result, the rotation member 31 to which the arm piece 32 is fixed and the operation arm 33 fixed to the rotation member 31 rotate. Since the four suspension rods 21 are connected to the left and right actuating arms 33 by the pins 22, and the suspension rod 21 is connected to the fastening metal fitting 24 as in the case of the front filter 2, the suspension rod 21 is moved upward. Along with this, the tightening metal 24 pushes up the rear filter 3 and presses it toward the rear filter crimping frame 4B to hold the rear filter 3 firmly. Also in the case of the rear filter 3, since the four suspension rods 21 simultaneously operate, uniform fixing is performed.

In the case of this embodiment, since the front filter 2 and the rear filter 3 are fixed by using the separate front and rear drive shaft rods 10 and 29, the front filter 2 and the rear filter 3 are heavy. Even if it is, it can be raised and lowered easily. Further, as shown in FIG. 2, the front filter drive shaft rod 10 and the rear filter drive shaft rod 29 are separate, but the rear filter drive shaft rod 29 passes through the center pipe 12 and is arranged on the same axis. Therefore, it is arranged as if it is a single rod, and it is compact and does not require an installation space. Further, although not shown, it is possible to rotate the front filter drive shaft rod 10 and the rear filter drive shaft rod 29 at the same time by providing a booster interlocking mechanism that engages with each other.

[0013]

[Effect of the device]

 According to the present invention, the following effects can be obtained. (1) By separating the drive shaft rods of the front filter and the rear filter, the weight filter can be easily and smoothly moved up and down, and can be securely fixed in the casing. (2) Since the drive shaft rod for the rear filter is supported by the hollow pipe, the compact shaft rod can be arranged, and the space can be saved. Further, since the drive shaft rod for the rear filter is intermediately supported by the hollow pipe, the bending rigidity is improved, and the rotation of the shaft rod is smoothly performed. (3) Since the suspension rods that press the front filter and the rear filter operate simultaneously and uniformly, the front and rear filters can be fixed evenly and the medium does not leak.

[Brief description of drawings]

FIG. 1 is a perspective view showing a detailed structure around a drive shaft rod for a rear filter and a hollow pipe supporting the drive shaft rod for a rear filter according to an embodiment of the present invention.

FIG. 2 is a front view of the embodiment.

FIG. 3 is a top view of a cross section taken along the line AA of FIG.

FIG. 4 is a left side view of the same embodiment.

FIG. 5 is a rear view of the embodiment.

FIG. 6 is a right side view of the same embodiment.

FIG. 7 is a front view of a conventional filter device.

8 is a right side view of FIG. 7.

[Explanation of symbols]

 1 Casing 2 Front filter 3 Rear filter 4A Front filter crimping frame 4B Rear filter crimping frame 4C Partition plate 5 Front filter operating mechanism section 6 Rear filter operating mechanism section 7 Open / close door 8 Inlet port 9 Outlet port 10 Front filter drive shaft Rod 11 Shaft rod fixing member 12 Hollow pipe 13 Pipe fixing member 14 Arm piece 15 Operating arm 16 Arm piece 17 Operating arm 18 Linking rod 19 pin 20 pin 21 Suspension rod 22 pin 23 Adjusting screw member 24 Tightening fitting 25 Spring 26 pin 27 Support block plate 28 Rotor 29 Rear filter drive shaft rod 30 Shaft rod fixing member 31 Rotating shaft rod 32 Arm piece 33 Actuating arm 34 Link rod 35 pin 36 pin 42 Gasket

Claims (1)

[Scope of utility model registration request] 1. A casing which forms an inlet and an outlet for a medium to be treated, a front filter and a rear filter which are supported in the casing so as to be able to move in and out and are arranged in front and rear, and communicate with the inlet side. What is claimed is: 1. A filter device comprising a crimping frame whose lower surface is opened and which is fixedly attached to the casing side, and an operating mechanism section for pressing the front filter and the rear filter against the crimping frame, wherein the operating mechanism section is the front filter. A front filter operating mechanism portion that engages with the rear filter, and a rear filter operating mechanism portion that engages with the rear filter. The front filter operating mechanism portion is arranged in parallel along both left and right side surfaces of the crimping frame. A drive shaft rod for a front filter which is rotatably supported by the crimping frame and a hollow pipe connected to the shaft rod via a connecting rod; The fastening mechanism is rotatably supported on the stationary side, the front filter drive shaft rod and the suspension rod installed between the hollow pipe sides, and the rear filter actuating mechanism is provided on both left and right sides of the crimping frame. A drive shaft rod for the rear filter, which is arranged along the surface and is rotatably supported by the crimping frame, and a rotating shaft rod connected to the shaft rod via a connecting rod, and abutting the lower surface of the rear filter. The rear filter drive shaft rod is composed of a tightening metal fitting that is engaged and rotatably supported on the non-moving side of the device, the rear filter drive shaft rod and a suspension rod that is installed between the rotation shaft rod sides. A filter device, which is rotatably supported in the hollow pipe.