Self-tightening anti-loosening manhole

Abstract

The self-tightening anti-loosening manhole comprises a manhole body, a sealing assembly and an anti-locking assembly, the manhole body comprises a cover plate at the upper end and a pipeline at the lower end, and the sealing assembly comprises a double-shaft motor fixedly installed in the center of the upper end of the cover plate and two-way threaded rods fixedly installed at the two ends of the double-shaft motor. According to the self-tightening type anti-loosening manhole, the first clamping hoop and the second clamping hoop which are driven by opening and closing of the double-shaft motor on the two sides of the cover plate can be automatically closed and locked to the two ends of the cover plate and the two ends of the pipeline after the cover plate is closed to the upper end of the pipeline, and the upper sealing ring and the lower sealing ring between the cover plate and the pipeline are tightly pressed after the first clamping hoop and the second clamping hoop are locked to the two ends of the cover plate and the two ends of the pipeline; and the outer sealing rings on the inner sides of the first clamping hoop and the second clamping hoop are pressed between the cover plate and the outer side of the pipeline, so that the sealing performance after the cover plate is closed is ensured through double-layer pressing sealing at the inner end and the outer end.

Description

Technical Field

[0001] The utility model relates to the technical field of food and medicine production, in particular to a self-tightening anti-loosening manhole. Background Art

[0002] A manhole refers to an opening structure used for personnel to enter and exit equipment for installation, maintenance and safety inspection. It is mainly composed of a short cylinder section (or pipe) and a manhole cover with a handle. The manhole materials are carbon steel and stainless steel, and can be used in equipment in the food and pharmaceutical production fields.

[0003] Existing manholes, such as an improved manhole door disclosed in publication number CN220353741 U, have the advantages of increasing the strength of the manhole door panel and extending the service life. However, after the cover plate at the upper end of the pipe of this manhole is pressed, its outer end does not have a sealing structure, which leads to insufficient sealing. For this reason, we propose a self-tightening anti-loosening manhole. Utility Model Content

[0004] The main purpose of the utility model is to provide a self-tightening anti-loosening manhole, which can effectively solve the problems in the background technology.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] A self-tightening anti-loosening manhole comprises a manhole body, a sealing assembly and an anti-locking assembly, wherein the manhole body comprises a cover plate and a pipe at the upper and lower ends, the sealing assembly comprises a double-axis motor fixedly installed at the center of the upper end of the cover plate, and a bidirectional threaded rod fixedly installed at both ends of the double-axis motor, a first clamping hoop and a second clamping hoop are movably installed outside the bidirectional threaded rod at both ends of the double-axis motor, and the first clamping hoop and the second clamping hoop are movably matched and clamped on both sides of the cover plate and the pipe, an outer sealing ring is fixedly installed at the center of the inner end of the first clamping hoop and the second clamping hoop, and installation openings are correspondingly opened at the bottom of the cover plate and the upper part of the pipe, and an upper sealing ring and a lower sealing ring are movably installed in the installation openings in the cover plate and the pipe.

[0007] Preferably, the lateral cross-section of the outer sealing ring is a trapezoidal structure.

[0008] Preferably, the sealing assembly further comprises an upper sealing opening and a lower sealing opening respectively opened on the outer side of the bottom of the cover plate and the outer side of the upper part of the pipeline.

[0009] Preferably, the anti-locking component includes a driving bevel gear fixedly mounted on the outer end of a bidirectional threaded rod on one side of a dual-axis motor, and a driven bevel gear meshingly mounted on the outer end of the driving bevel gear, an adjusting rod is also fixedly mounted on the outer end of the driven bevel gear, and a fixing column is also fixedly mounted at the center of the adjusting rod.

[0010] Preferably, the anti-locking assembly further comprises a fixing seat movably mounted on the outer end of the fixing column, and the fixing seat is fixedly mounted on the upper end of the cover plate.

[0011] Compared with the prior art, the utility model has the following beneficial effects:

[0012] 1. In the utility model, the first clamping hoop and the second clamping hoop driven by the double-axis motors on both sides of the cover plate can automatically close and lock to the two ends of the cover plate and the pipeline after the cover plate is closed on the upper end of the pipeline, and after being locked to the two ends of the cover plate and the pipeline, the upper sealing ring and the lower sealing ring between the cover plate and the pipeline are pressed, and the outer sealing ring inside the first clamping hoop and the second clamping hoop is pressed to the connection between the cover plate and the outer side of the pipeline, thereby ensuring the sealing of the cover plate after closing through the double-layer compression seal at the inner and outer ends;

[0013] 2. In the utility model, the driven bevel gear meshingly mounted on the outer side of the active bevel gear on the bidirectional threaded rod at the outer end of the cover plate can also be used to open the first clamping hoop and the second clamping hoop on both sides of the cover plate and the pipeline by adjusting the rotation of the driven bevel gear through the adjusting rod after the dual-axis motor is damaged, thereby avoiding the problem of the cover plate being locked after the dual-axis motor is accidentally damaged. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model;

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

[0016] Figure 3 This is an expanded view of the first clamping hoop and the second clamping hoop of the utility model;

[0017] Figure 4 For this utility model Figure 2 A is an enlarged view of the middle image.

[0018] Reference numerals:

[0019] 100. Manhole body; 101. Cover plate; 102. Pipeline;

[0020] 200, sealing assembly; 201, dual-axis motor; 202, bidirectional threaded rod; 203, first clamping hoop; 204, second clamping hoop; 205, outer sealing ring; 206, mounting port; 207, upper sealing ring; 208, lower sealing ring; 209, upper sealing port; 210, lower sealing port;

[0021] 300, anti-lock assembly; 301, driving bevel gear; 302, driven bevel gear; 303, adjusting rod; 304, fixing column; 305, fixing seat. DETAILED DESCRIPTION

[0022] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0023] Embodiment 1:

[0024] like Figure 1-3 As shown, this embodiment provides a self-tightening anti-loosening manhole, including a manhole body 100, a sealing assembly 200 and an anti-locking assembly 300, the manhole body 100 includes a cover plate 101 and a pipe 102 at the upper and lower ends, the sealing assembly 200 includes a double-axis motor 201 fixedly installed at the center of the upper end of the cover plate 101, and a bidirectional threaded rod 202 fixedly installed at both ends of the double-axis motor 201, and a first clamping hoop 203 and a second clamping hoop 204 are movably installed outside the bidirectional threaded rod 202 at both ends of the double-axis motor 201, and the first clamping hoop 203 and the second clamping hoop 204 are movably matched. Clamped on both sides of the cover plate 101 and the pipeline 102, an outer sealing ring 205 is fixedly installed at the center of the inner end of the first clamping hoop 203 and the second clamping hoop 204, and installation openings 206 are correspondingly opened at the bottom of the cover plate 101 and the upper part of the pipeline 102. An upper sealing ring 207 and a lower sealing ring 208 are movably installed in the installation openings 206 in the cover plate 101 and the pipeline 102, respectively. The lateral cross-section of the outer sealing ring 205 is a trapezoidal structure. The sealing assembly 200 also includes an upper sealing opening 209 and a lower sealing opening 210 respectively opened on the outer side of the bottom of the cover plate 101 and the outer side of the upper part of the pipeline 102.

[0025] Specifically, the manhole refers to an opening structure for personnel to enter and exit the equipment for installation, maintenance and safety inspection, mainly composed of a pipe 102 and a manhole cover plate 101 with a handle, and can be used in equipment in the field of food and drug production. The first clamping hoop 203 and the second clamping hoop 204 driven by the double-axis motor 201 on both sides of the cover plate 101 of the manhole body 100 can automatically close and lock to the two ends of the cover plate 101 and the pipe 102 after the cover plate 101 is closed on the upper end of the pipe 102, and after locking to the two ends of the cover plate 101 and the pipe 102, the cover plate 101 and the pipe 102 are pressed. 102, and the outer sealing ring 205 on the inner side of the first clamping hoop 203 and the second clamping hoop 204 is pressed to the connection between the cover plate 101 and the outer side of the pipeline 102, and then the sealing of the cover plate 101 after closing is ensured by the double-layer compression seal at the inner and outer ends. The upper sealing port 209 and the lower sealing port 210 opened on the lower part of the cover plate 101 and the outer side of the upper part of the pipeline 102 are mainly used for pressing the inner and outer sealing rings 205 of the first clamping hoop 203 and the second clamping hoop 204, so as to ensure the sealing of the cover plate 101 and the outer side of the pipeline 102.

[0026] Embodiment 2:

[0027] Based on the first embodiment, Figure 4 As shown, the anti-locking component 300 includes a driving bevel gear 301 fixedly mounted on the outer end of a bidirectional threaded rod 202 on one side of a dual-axis motor 201, and a driven bevel gear 302 meshingly mounted on the outer end of the driving bevel gear 301, an adjusting rod 303 is also fixedly mounted on the outer end of the driven bevel gear 302, and a fixing column 304 is also fixedly mounted at the center of the adjusting rod 303, and the anti-locking component 300 also includes a fixing seat 305 movably mounted on the outer end of the fixing column 304, and the fixing seat 305 is fixedly mounted on the upper end of the cover plate 101.

[0028] Specifically, the driven bevel gear 302 meshingly installed on the outer side of the active bevel gear 301 on the bidirectional threaded rod 202 at the outer end of the cover plate 101 can also open the first clamping hoop 203 and the second clamping hoop 204 on both sides of the cover plate 101 and the pipeline 102 by rotating the active bevel gear 301 through the adjusting rod 303 after the dual-axis motor 201 is damaged, thereby avoiding the problem of the cover plate 101 being locked after the dual-axis motor 201 is accidentally damaged. The fixing seat 305 movably installed on the outer end of the fixing column 304 on the adjusting rod 303 is mainly used to ensure the installation stability of the adjusting rod 303.

[0029] The working principle and use process of this utility model:

[0030] After the cover plate 101 is closed to the upper end of the pipe 102, the double-axis motor 201 on the top of the cover plate 101 will be started to drive the first clamping hoop 203 and the second clamping hoop 204 on both sides to move inwards through the bidirectional threaded rods 202 at both ends to clamp the cover plate 101 and the pipe 102. After the first clamping hoop 203 and the second clamping hoop 204 are clamped to the cover plate 101 and the pipe 102, while clamping the upper sealing ring 207 and the lower sealing ring 208 on the upper and lower sides of the mounting opening 206 at the inner end of the cover plate 101 and the pipe 102, the outer sealing ring 207 and the lower sealing ring 208 at the inner end of the cover plate 101 and the pipe 102 will also be clamped. The sealing ring 205 is pressed against the inside of the upper sealing opening 209 and the lower sealing opening 210 on the outside of the cover plate 101 and the pipe 102, thereby ensuring the sealing of the inside and outside of the connection room after the cover plate 101 is closed to the upper end of the pipe 102. At the same time, after the double-axis motor 201 on the top of the cover plate 101 is accidentally damaged, the first clamping hoop 203 and the second clamping hoop 204 on both sides of the two-way threaded rod 202 can be opened by rotating the adjusting rod 303 at the upper end of the fixed seat 305 and driving the active bevel gear 301 on the two-way threaded rod 202 through the driven bevel gear 302.

[0031] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and purpose of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A self-tightening anti-loosening manhole, comprising a manhole body (100), a sealing assembly (200) and an anti-locking assembly (300), wherein the manhole body (100) comprises upper and lower cover plates (101) and a pipe (102), characterized in that: The sealing assembly (200) comprises a double-axis motor (201) fixedly mounted at the center of the upper end of the cover plate (101), and bidirectional threaded rods (202) fixedly mounted at both ends of the double-axis motor (201), and a first clamping hoop (203) and a second clamping hoop (204) are movably mounted outside the bidirectional threaded rods (202) at both ends of the double-axis motor (201), and the first clamping hoop (203) and the second clamping hoop (204) are movably matched and clamped on the cover plate. (101) and on both sides of the pipeline (102), an outer sealing ring (205) is fixedly installed at the center of the inner end of the first clamping hoop (203) and the second clamping hoop (204), and mounting openings (206) are correspondingly opened at the bottom of the cover plate (101) and the upper part of the pipeline (102), and an upper sealing ring (207) and a lower sealing ring (208) are movably installed in the mounting openings (206) in the cover plate (101) and the pipeline (102), respectively.

2. A self-tightening anti-loosening manhole according to claim 1, characterized in that: The lateral cross section of the outer sealing ring (205) is a trapezoidal structure.

3. The self-tightening anti-loosening manhole according to claim 1, characterized in that: The sealing assembly (200) further comprises an upper sealing opening (209) and a lower sealing opening (210) respectively provided on the outer side of the bottom of the cover plate (101) and the outer side of the upper part of the pipeline (102).

4. The self-tightening anti-loosening manhole according to claim 1, characterized in that: The anti-locking assembly (300) comprises a driving bevel gear (301) fixedly mounted on the outer end of a bidirectional threaded rod (202) on one side of a dual-axis motor (201), and a driven bevel gear (302) meshedly mounted on the outer end of the driving bevel gear (301), an adjusting rod (303) also being fixedly mounted on the outer end of the driven bevel gear (302), and a fixing column (304) also being fixedly mounted at the center of the adjusting rod (303).

5. The self-tightening anti-loosening manhole according to claim 1, characterized in that: The anti-locking assembly (300) further comprises a fixing seat (305) movably mounted on the outer end of the fixing column (304), and the fixing seat (305) is fixedly mounted on the upper end of the cover plate (101).

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