A novel air-driven mechanism for shutters and an air-driven shutter including the same

Abstract

The present invention relates to the technical field of marine supporting equipment, and in particular to a novel air-driven mechanism for louvers and an air-driven louver containing the mechanism, comprising: an air-driven connecting rod assembly and a self-locking assembly; the air-driven connecting rod assembly is mounted on the louver frame, and the self-locking assembly is mounted on the air-driven connecting rod assembly; when the air-driven connecting rod assembly moves downward, it drives the blade control rod in the louver to move to open the louver blades, and with the cooperation of the self-locking assembly, the air-driven connecting rod assembly enters a self-locking state. The purpose of the present invention is to provide a novel air intake louver that has the characteristic of self-locking after opening, which meets the actual use requirements while solving the problems of redundant design, complex structure, and poor reliability of the air supply system. At the same time, the device has a smart design structure, is easy to disassemble, and is convenient for maintenance.

Description

Technical Field

[0001] The present invention relates to the technical field of marine supporting equipment, and in particular to a novel air-driven mechanism for a louver and an air-driven louver comprising the mechanism. Background Art

[0002] Air intake louvers are an essential component of various marine air intake systems, generally used for weatherproofing. Controllable louvers are the primary component of these systems' waterproof air intake. Pneumatic actuation is a common actuation method, offering advantages such as quick opening and closing, universal interfaces, and reliable mechanical structure. Air-operated louvers rely primarily on a continuous supply of compressed air pressure within the pipeline to maintain their opening. Therefore, in the event of insufficient or interrupted compressed air supply, they can easily fail to maintain their opening, leading to malfunctioning of the air intake system. Therefore, a common solution is to provide a backup air supply system to ensure sufficient air pressure within the pneumatic pipeline to maintain the louvers' opening even in the event of insufficient or interrupted main air supply. Considering equipment miniaturization and structural reliability, a backup air supply system not only complicates and reduces system reliability, but also cannot completely prevent the louvers from failing to maintain their opening in extreme cases due to air supply anomalies, further impacting the performance of the entire air intake system's filtration system and the reliability of the powertrain. Summary of the Invention

[0003] In response to the shortcomings of the existing technology, the present invention discloses a new air drive mechanism and device for shutters. The purpose of the present invention is to provide a new air intake shutter, which has the characteristic of self-locking after opening. While meeting the actual use requirements, it can also solve the problems of redundant design, complex structure and poor reliability of the air supply system. At the same time, the device has a smart design structure, is easy to disassemble and convenient maintenance.

[0004] The present invention is achieved through the following technical solutions:

[0005] A novel air-driven mechanism for a Venetian blind comprises: an air-driven connecting rod assembly and a self-locking assembly; the air-driven connecting rod assembly is mounted on the Venetian blind frame, and the self-locking assembly is mounted on the air-driven connecting rod assembly; when the air-driven connecting rod assembly moves downward, it drives the blade control rod in the Venetian blind to move to open the blind blades, and with the cooperation of the self-locking assembly, the air-driven connecting rod assembly enters a self-locking state.

[0006] Preferably, the air-driven connecting rod assembly includes: an air push rod, connecting rod one, connecting rod two, connecting rod three, pin one, pin two, pin three and a flat pin; the air push rod is installed on the shutter frame, the driving end of the air push rod is connected to the connecting rod one through a threaded sleeve, the lower end of the connecting rod one is hinged to the connecting rod two through the pin one, the connecting rod two is hinged to the shutter frame through the pin two, the connecting rod two is hinged to the connecting rod three through the pin three, and the connecting rod three is hinged to the blade control rod of the shutter through the flat pin.

[0007] Preferably, the connecting rod 1 includes an upper rod body and a lower rod body.

[0008] The lock member is a pair of locks, each of which is connected to the bottom end of the lock member, and the lock member is connected with the bottom end of the lock member to form a lock.

[0009] Preferably, the shell includes a shell, a cover and a through slot; the top of the shell is detachably locked with the cover by a fastening bolt, and the right side wall of the shell is provided with the through slot for the right end of the self-locking plate to pass through.

[0010] Preferably, the upper portion of the positioning ring is arranged in a cylindrical structure, and the lower portion is arranged in a truncated cone structure.

[0011] Preferably, an embedding groove is provided on the circumferential wall of the cylindrical tube of the positioning ring, a second spring is installed on the embedding groove, a second steel ball is provided at the other end of the second spring, and the second steel ball is elastically in contact with the inner wall of the shell.

[0012] Preferably, the self-locking piece is arranged in a bent rod-shaped structure, and the bending angle of the bent rod is 145-155°.

[0013] The present invention also provides the following technical solution: a novel air-driven venetian blind, which is driven to open and close by a novel air-driven venetian blind mechanism as described above.

[0014] The present invention has the following beneficial effects:

[0015] (1) The new shutter opening and closing drive part consists of a pneumatic multi-link structure and a self-locking structure;

[0016] (2) When the shutter blades are opened to the fully open state, the multi-link structure enters the self-locking state;

[0017] (3) When the pneumatic push rod drives the shutter blades to close, the multi-link structure can automatically escape from the self-locking state to complete the closing of the shutter blades;

[0018] (4) The shutter design is widely used, and all parts of the device can be flexibly disassembled, modified and maintained;

[0019] (5) Advantages of the present invention: The present invention solves the problem of the inability of the air intake shutter in conventional air intake devices to ensure self-locking after opening, resulting in insufficient reliability. Furthermore, the present invention can effectively reduce design redundancy in the hull air supply system. The entire device has a simple design and is easy to disassemble, replace, and maintain. In actual use, it can effectively improve and ensure the reliability of the entire air intake device. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0021] Figure 1 2 is a structural diagram of the gas drive mechanism of the present invention.

[0022] Figure 2 This is a structural diagram of the air-driven connecting rod assembly of the present invention.

[0023] Figure 3 It is a structural diagram of the self-locking component of the present invention.

[0024] Figure 4 It is a structural diagram of the flat pin of the present invention.

[0025] Figure 5 This is a structural diagram of the air-driven shutter of the present invention.

[0026] In the figure: 1-air drive connecting rod assembly, 11-air push rod, 12-connecting rod one, 13-connecting rod two, 14-connecting rod three, 15-pin one, 16-pin two, 17-pin three, 18-flat pin, 19-threaded socket, 2-self-locking assembly, 21-housing, 211-shell, 212-cover, 213-through groove, 22-fixing cover, 23-positioning ring, 24-self-locking piece, 25-limiting block, 26-self-locking buckle, 27-spring one, 28-steel ball one, 29-spring two, 30-steel ball two; 100-louver. DETAILED DESCRIPTION

[0027] To make the objectives, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0028] like Figure 1-5 The embodiment of the present invention discloses a technical solution of a novel air-driven mechanism for Venetian blinds, comprising: an air-driven connecting rod assembly 1 and a self-locking assembly 2; the air-driven connecting rod assembly 1 is installed on the frame of the Venetian blinds 100, and the self-locking assembly 2 is installed on the air-driven connecting rod assembly 1. When the air-driven connecting rod assembly 1 moves downward, it drives the blade control rod in the Venetian blinds 100 to move to realize the opening of the blades of the Venetian blinds 100, and with the cooperation of the self-locking assembly 2, the air-driven connecting rod assembly 1 enters a self-locking state.

[0029] The air-driven connecting rod assembly 1 includes: an air push rod 11, a connecting rod 12, a connecting rod 2 13, a connecting rod 3 14, a pin 15, a pin 2 16, a pin 3 17 and a flat pin 18; the air push rod 11 is installed on the frame of the shutter 100, the driving end of the air push rod 11 is connected to the connecting rod 12 through a threaded sleeve 19, the lower end of the connecting rod 12 is hinged to the connecting rod 2 13 through the pin 15, the connecting rod 2 13 is hinged to the frame of the shutter 100 through the pin 2 16, the connecting rod 2 13 is hinged to the connecting rod 3 14 through the pin 3 17, and the connecting rod 3 14 is hinged to the blade control rod of the shutter 100 through the flat pin 18.

[0030] The connecting rod 12 includes an upper rod body and a lower rod body.

[0031] The self-locking component 2 includes: a shell 21, a fixing cover 22, a positioning ring 23, a self-locking piece 24, a limit block 25 and a self-locking buckle 26; an upper rod body is inserted into the top axis hole of the shell 21, and a lower rod body is inserted into the bottom axis hole. The lower end of the upper rod body is provided with a fixing cover 22, and the upper end of the lower rod body is provided with a positioning ring 23. The fixing cover 22 and the positioning ring 23 are detachably connected. The self-locking piece 24 is placed at the bottom of the inner cavity of the shell 21 and is sleeved on the upper end of the lower rod body. A mounting groove is opened on the left side of the bottom of the shell 21, and a spring 27 is provided in the mounting groove. The upper end of the spring 27 is connected to a steel ball 28, and the top of the steel ball 28 abuts against the bottom left side of the self-locking piece 24. The left and right limit blocks 25 are symmetrically arranged on the frame of the shutter 100, so that it limits the downward movement of the self-locking component 2, and the self-locking piece 24 and the self-locking buckle 26 cooperate with each other.

[0032] The housing 21 includes a shell 211, a cover 212 and a through slot 213; the top of the shell 211 is detachably locked with the cover 212 by fastening bolts, and the right side wall of the shell 211 is provided with a through slot 213 for the right end of the self-locking piece 24 to pass through.

[0033] The upper portion of the positioning ring 23 is provided in a cylindrical tube-shaped structure, and the lower portion is provided in a truncated cone-shaped structure. The self-locking piece 24 can be coaxially pressed downward by the truncated cone-shaped structure of the lower portion.

[0034] An embedding groove is provided on the circumferential wall of the cylindrical tube of the positioning ring 23, and a spring 29 is installed on the embedding groove. The other end of the spring 29 is provided with a steel ball 20, which elastically abuts against the inner wall of the shell 21. Through the arrangement of the spring 29 and the steel ball 20, the upward and downward movement of the positioning ring 23 can be automatically adjusted to avoid vertical deviation when the positioning ring 23 or the connecting rod 12 moves up and down.

[0035] The self-locking piece 24 is arranged in a bent rod-shaped structure, and the bending angle of the bent rod is 145-155 degrees, which is convenient for contacting or disengaging with the self-locking buckle 26 to open or lock the self-locking buckle 26.

[0036] The embodiment of the present invention further provides the following technical solution: a novel air-driven Venetian blind, which uses the novel air-driven mechanism for Venetian blinds as described above to drive the Venetian blinds 100 to open and close.

[0037] In actual operation of the present invention, when the pneumatic push rod 11, i.e., the cylinder, moves downward, driving the link 12 downward, the link 12, relying on the positioning ring 23 to maintain a coaxial position with the self-locking plate 24, is pressed downward, and the self-locking plate 24 remains retracted. The flat pin 18 on the link 3 14 enters the self-locking catch 26, simultaneously driving the blade control lever of the Venetian blind 100 to open and self-lock the blades of the Venetian blind 100. When the link 12 moves upward, the self-locking plate 24 disengages, and the link 12 drives the entire self-locking assembly 2 housing 21 upward. At this time, the self-locking plate 24 contacts the self-locking catch 26, which opens, and the flat pin 18 disengages downward, closing the blades of the Venetian blind 100, completing the opening and closing cycle.

[0038] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A new type of air drive mechanism for shutters, characterized in that: include: An air-driven connecting rod assembly (1) and a self-locking assembly (2); The air-driven connecting rod assembly (1) is mounted on the frame of the venetian blind (100), and the self-locking assembly (2) is mounted on the air-driven connecting rod assembly (1). When the air-driven connecting rod assembly (1) moves downward, it drives the blade control rod in the venetian blind (100) to move so that the blades of the venetian blind (100) are opened, and the air-driven connecting rod assembly (1) enters a self-locking state in cooperation with the self-locking assembly (2). The air-driven connecting rod assembly (1) comprises: an air push rod (11), a connecting rod one (12), a connecting rod two (13), a connecting rod three (14), a pin one (15), a pin two (16), a pin three (17) and a flat pin (18); the air push rod (11) is installed on the frame of the venetian blind (100); the driving end of the air push rod (11) is connected to the connecting rod one (12) through a threaded sleeve (19); the lower end of the connecting rod one (12) is hinged to the connecting rod two (13) through the pin one (15); the connecting rod two (13) is hinged to the frame of the venetian blind (100) through the pin two (16); the connecting rod two (13) is hinged to the connecting rod three (14) through the pin three (17); the connecting rod three (14) is hinged to the blade control rod of the venetian blind (100) through the flat pin (18); The connecting rod 1 (12) includes an upper rod body and a lower rod body; The self-locking assembly (2) comprises: a shell (21), a fixing cover (22), a positioning ring (23), a self-locking piece (24), a limit block (25) and a self-locking buckle (26); the upper rod body is inserted into the top shaft hole of the shell (21), and the lower rod body is inserted into the bottom shaft hole; the lower end of the upper rod body is provided with the fixing cover (22), and the upper end of the lower rod body is provided with the positioning ring (23); the fixing cover (22) and the positioning ring (23) are detachably connected; the self-locking piece (24) is placed in the inner cavity of the shell (21). The bottom of the housing (21) is provided with a mounting groove on the left side of the bottom, and is sleeved on the upper end of the lower rod body. A spring (27) is provided in the mounting groove, and a steel ball (28) is connected to the upper end of the spring (27). The top of the steel ball (28) is in contact with the left side of the bottom of the self-locking piece (24). The left and right limit blocks (25) are symmetrically arranged on the frame of the shutter (100) so as to limit the downward movement of the self-locking component (2). The self-locking piece (24) and the self-locking buckle (26) cooperate with each other.

2. A novel air drive mechanism for shutters as claimed in claim 1, characterized in that: The housing (21) comprises a shell (211), a cover (212) and a through slot (213); the top of the shell (211) is detachably locked with the cover (212) by means of a fastening bolt, and the right side wall of the shell (211) is provided with the through slot (213) for the right end of the self-locking piece (24) to pass through.

3. A novel air drive mechanism for shutters as claimed in claim 1, characterized in that: The upper portion of the positioning ring (23) is arranged in a cylindrical tube-shaped structure, and the lower portion is arranged in a truncated cone-shaped structure.

4. A novel air-driven mechanism for shutters as claimed in claim 3, characterized in that: An embedding groove is provided on the circumferential wall of the cylindrical tube of the positioning ring (23), and a second spring (29) is installed on the embedding groove. A second steel ball (30) is provided at the other end of the second spring (29), and the second steel ball (30) elastically contacts the inner wall of the shell (21).

5. A novel air drive mechanism for shutters as claimed in claim 1, characterized in that: The self-locking piece (24) is arranged in a bent rod-shaped structure, and the bending angle of the bent rod is 145°-155°.

6. A new type of air-driven shutter, characterized in that: The shutter (100) is driven to open and close by using a novel shutter air drive mechanism according to any one of claims 1 to 5.

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