Polarizer filter support

Abstract

The utility model discloses a polarizer filter support which comprises a shell, a round hole is formed in the middle of the shell, and a filter installed in the later period is observed through the position of the round hole. The limiting plates are symmetrically arranged on the two sides of the rear portion of the shell, and the limiting plates and the shell are integrally arranged; a clamping groove is formed in the limiting plate, an abutting piece is arranged in the clamping groove, one end of the abutting piece is fixed in the clamping groove, and the other end of the abutting piece is connected with the end of the rear surface of the limiting plate in an adjustable mode. By adjusting the position of the abutting piece on the limiting plate, the abutting piece can be bent to different degrees in the clamping groove, and therefore the clamping force on the filter is adjusted according to different installation requirements; the device further comprises a limiting piece. Through the design of the utility model, the mechanical structure required for clamping the lens is greatly simplified, and meanwhile, the normal clamping force is not influenced, so that the production and maintenance cost is reduced, the difficulty in later maintenance is also greatly reduced, and the defects of the existing structure in use are overcome.

Description

Technical Field

[0001] The utility model belongs to the technical field of polarizing filters, and in particular relates to a polarizing filter bracket. Background Art

[0002] Polarizing filters are lenses manufactured based on the principle of light polarization. They are used to exclude and filter out direct light from a beam of light, allowing the light to enter the eye's visual image along the correct transmission axis, making the field of vision clear and natural [1]. They are mostly used in sunglasses and camera lenses. In order to meet people's actual needs, filters and polarizing filters that filter and reduce light to improve shooting effects are used in auxiliary shooting. In the process of installing and adjusting filters and polarizing filters, users will inevitably use polarizing filter holders.

[0003] In order to achieve the fastening installation of the filter, the current filter holder adopts a relatively large number of mechanical structures as a whole, resulting in too many parts on the holder. Once damaged, maintenance is difficult and costly. Therefore, there are great limitations in actual use and there is room for improvement. Utility Model Content

[0004] The purpose of the utility model is to provide a polarizing filter holder to solve the problems in the prior art that the structure of the existing filter holder is complicated, difficult to maintain and high cost in order to ensure the fastening of the filter.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a polarizing filter holder, comprising a shell, a circular hole is provided in the middle, and the filter installed later is observed through the position of the circular hole; a limit plate is symmetrically arranged at both sides of the rear portion of the shell, and the limit plate is integrally arranged with the shell; a card slot is provided inside the limit plate, and a tightening piece is provided in the card slot, one end of the tightening piece is fixed in the card slot, and the other end is adjustably connected to the end position of the rear surface of the limit plate; by adjusting the position of the tightening piece on the limit plate, the tightening piece can be bent to different degrees in the card slot, thereby adjusting the clamping force of the filter according to different installation requirements; it also includes a limit member, which passes through the other end of the tightening piece and is screwed into the interior of the limit plate, thereby limiting the tightening piece after the adjusted position, to ensure that its own tightening force does not change.

[0006] Preferably, placement grooves are provided at both ends of the outer surface of the limiting plate, and a through groove that penetrates the card slot is provided at one end of the placement groove. The other end of the clamping piece passes through the through groove and overlaps the placement groove, thereby realizing the installation of the other end of the clamping piece.

[0007] Preferably, one end of the tightening piece is a fixing portion, which is fixed on the top inner wall of the card slot, and the other end of the tightening piece is an adjusting portion, which is overlapped on the placement slot, and the limiting member is connected with the adjusting portion, and the tightening and limiting of the adjusting portion is achieved by the limiting member. The middle position of the tightening piece bulges toward the inner bottom end of the card slot and forms a tightening portion. In use, the filter is clamped and tightened by the bulge of the tightening portion.

[0008] Preferably, an adjusting groove is provided at the end of the adjusting portion, and a screw hole is provided at the bottom end surface of the placement groove. The limiting member passes through the adjusting groove and is screwed into the screw hole. When adjusting the overall clamping force of the clamping piece, the adjusting portion is moved in the placement groove. At this time, the adjusting groove moves laterally outside the limiting member. When the adjusting portion moves, the protrusion of the clamping portion will also change accordingly. After moving to the specified position, the limiting member is tightened to achieve the clamping of the adjusting portion.

[0009] Preferably, the limiting member is a locking bolt, and the end of the locking bolt is located inside the placement groove to avoid protrusion affecting normal installation later.

[0010] Preferably, an annular groove is provided on the inner side surface of the housing, and a rubber ring is placed in the annular groove. The rubber ring and the circular hole on the housing are arranged concentrically. The rubber ring can achieve flexible contact with the filter through the arrangement of the rubber ring.

[0011] Preferably, the inner width of the adjustment groove is equal to or greater than the outer diameter of the locking bolt.

[0012] Compared with the prior art, the beneficial effects of the present invention are:

[0013] The design of the present invention greatly simplifies the mechanical structure required for clamping the lens, while ensuring that the normal clamping force is not affected. This not only reduces production and maintenance costs, but also greatly reduces the difficulty of later maintenance, thereby improving the shortcomings of the existing structure in use. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural diagram of the utility model;

[0015] Figure 2 It is a rear view of the utility model;

[0016] Figure 3 This is a cross-sectional view of the connection between the tightening piece and the housing of the utility model;

[0017] Figure 4 It is a structural schematic diagram of the tightening piece of the utility model.

[0018] In the picture:

[0019] 100. Housing; 101. Rubber ring;

[0020] 200, limit plate; 200a, placement slot; 200b, through slot; 200c, screw hole; 200d, card slot;

[0021] 201, abutting piece; 201a, fixing portion; 201b, abutting portion; 201c, adjusting portion; 201c-1, adjusting slot;

[0022] 202. Locking bolt. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0024] See also Figures 1 to 4 The utility model provides a technical solution: a polarizing filter holder, comprising

[0025] The housing 100 has a circular hole in the middle, and the filter installed later is observed through the circular hole;

[0026] The limiting plates 200 are symmetrically arranged on both sides of the rear portion of the housing 100. The limiting plates 200 are integrally arranged with the housing 100.

[0027] The limiting plate 200 has a slot 200d defined therein, within which a clamping piece 201 is disposed. One end of the clamping piece 201 is fixed within the slot 200d, and the other end is adjustably connected to the end of the rear surface of the limiting plate 200. By adjusting the position of the clamping piece 201 on the limiting plate 200, the clamping piece 201 can be bent to varying degrees within the slot 200d, thereby adjusting the clamping force on the filter according to different installation requirements.

[0028] It also includes a limiting member, which passes through the other end of the clamping piece 201 and is screwed into the interior of the limiting plate 200, thereby limiting the clamping piece 201 after the position is adjusted to ensure that its own clamping force does not change.

[0029] In this embodiment, preferably, placement grooves 200a are provided at both ends of the outer surface of the limiting plate 200, and a through groove 200b that passes through the card slot 200d is provided at one end of the placement groove 200a. The other end of the clamping plate 201 passes through the through groove 200b and overlaps the placement groove 200a, thereby realizing the installation of the other end of the clamping plate 201.

[0030] In this embodiment, preferably, one end of the clamping piece 201 is a fixing portion 201a, which is fixed on the top inner wall of the card slot 200d, and the other end of the clamping piece 201 is an adjusting portion 201c, which is overlapped on the placement slot 200a, and the limiting member is connected with the adjusting portion 201c, and the limiting member is used to realize the clamping and limiting of the adjusting portion 201c. The middle position of the clamping piece 201 bulges toward the inner bottom end of the card slot 200d, and forms a clamping portion 201b. In use, the filter is clamped and pressed by the bulge of the clamping portion 201b.

[0031] In this embodiment, preferably, an adjustment groove 201c-1 is provided at the end of the adjustment portion 201c, and a screw hole 200c is provided at the bottom end surface of the placement groove 200a. The limiting member passes through the adjustment groove 201c-1 and is screwed into the screw hole 200c. When adjusting the overall clamping force of the clamping piece 201, the adjustment portion 201c is moved in the placement groove 200a. At this time, the adjustment groove 201c-1 moves laterally outside the limiting member. When the adjustment portion 201c moves, the protrusion of the clamping portion 201b will also change accordingly. After moving to the specified position, the limiting member is tightened to achieve the clamping of the adjustment portion 201c.

[0032] In this embodiment, preferably, the limiting member is a locking bolt 202, and the end of the locking bolt 202 is located inside the placement groove 200a to avoid protrusion affecting normal installation later.

[0033] In this embodiment, preferably, a ring groove is opened on the inner side surface of the shell 100, and a rubber ring 101 is placed in the ring groove. The rubber ring 101 and the circular hole on the shell 100 are arranged concentrically. Through the arrangement of the rubber ring 101, flexible contact with the filter can be achieved.

[0034] In this embodiment, preferably, the inner width of the adjustment groove 201 c - 1 is equal to or greater than the outer diameter of the locking bolt 202 .

[0035] Although embodiments of the present invention have been shown and described (see the detailed description above for details), it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A polarizing filter holder, comprising The shell (100) has a circular hole in the middle; The limiting plates (200) are symmetrically arranged at both sides of the rear portion of the housing (100), and the limiting plates (200) are integrally arranged with the housing (100); Its characteristics are: A slot (200d) is provided inside the limiting plate (200), and a tightening piece (201) is provided in the slot (200d). One end of the tightening piece (201) is fixed in the slot (200d), and the other end is adjustably connected to the end portion of the rear surface of the limiting plate (200); It also includes a limiting member, which passes through the other end of the tightening piece (201) and is screwed into the interior of the limiting plate (200).

2. The polarizing filter holder according to claim 1, characterized in that: The outer surface of the limiting plate (200) is provided with placement grooves (200a) at both ends, one end of the placement groove (200a) is provided with a through groove (200b) that is connected to the clamping groove (200d), and the other end of the tightening piece (201) passes through the through groove (200b) and overlaps the placement groove (200a).

3. The polarizing filter holder according to claim 2, characterized in that: One end of the pressing piece (201) is a fixing portion (201a), which is fixed on the top inner wall of the card slot (200d), and the other end of the pressing piece (201) is an adjusting portion (201c), which is overlapped on the placement slot (200a), and the limiting member is connected to the adjusting portion (201c). The middle position of the pressing piece (201) is raised toward the inner bottom end of the card slot (200d) to form a pressing portion (201b).

4. The polarizing filter holder according to claim 3, characterized in that: An adjusting groove (201c-1) is provided at the end of the adjusting portion (201c), a screw hole (200c) is provided at the bottom end surface of the placement groove (200a), and the limiting member passes through the adjusting groove (201c-1) and is screwed into the screw hole (200c).

5. The polarizing filter holder according to claim 4, characterized in that: The limiting member is a locking bolt (202), and the end of the locking bolt (202) is located inside the placement groove (200a).

6. The polarizing filter holder according to claim 1, characterized in that: An annular groove is provided on the inner side surface of the housing (100), and a rubber ring (101) is placed in the annular groove. The rubber ring (101) and the circular hole on the housing (100) are arranged in a concentric circle.

7. The polarizing filter holder according to claim 5, characterized in that: The inner width of the adjustment groove (201c-1) is equal to or greater than the outer diameter of the locking bolt (202).

Images