Protection mechanism for density relay

Abstract

The utility model relates to the technical field of density relays, in particular to a protection mechanism for a density relay, which comprises a controller, a detector and a dial plate, the detector is mounted on the upper surface of the controller, the dial plate is mounted on the surface of the detector, and a connector is mounted on one side of the detector far away from the dial plate. A protection assembly is arranged on the surface of the detector, the protection assembly comprises a shielding unit, the shielding unit comprises a positioning frame, the positioning frame is fixedly connected with the cambered surface of the detector, a supporting frame is installed on the side, close to the dial plate, of the detector, and a transparent cover is fixedly connected to the inner wall of the supporting frame. According to the utility model, through the arrangement of the protection assembly, the density relay can be protected by an additional structure when in use, so that the problems that the shell and the display part of the density relay are exposed outside and are easy to damage are reduced, and the protection effect of the density relay on the density relay is further improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to density relay technical field especially relates to a protective mechanism for density relay. BACKGROUND

[0002] Density relay is an important monitoring equipment, it is mainly used for monitoring the density of specific gas in electrical equipment, usually by detection part, display part and control circuit etc. composition, density relay can measure gas density in real time, and the data is displayed, when gas density reaches the set critical value, will send out an alarm signal, reminds the staff to carry out corresponding processing industry.

[0003] Prior art such as the utility model with publication no. CN210535582U, this patent discloses a protective mechanism for density relay, the density relay body is characterized in that the front side and the rear side of the top of the density relay body are provided with a strip-shaped groove, the left and right sides of the inner wall of the two strip-shaped grooves are provided with a circular recess, the front side and the rear side of the density relay body are provided with two strip-shaped through holes, the opposite ends of the four strip-shaped through holes are communicated with the circular recess, and two pushing mechanisms are fixedly installed in the four circular recesses, which solves the problem that the protective cover is directly fixed by bolts when the relay is used normally, which is easy to cause the bolts to rust and difficult to disassemble and install subsequently.

[0004] In the process of monitoring gas by using density relay, most of the density relays on the market are directly exposed to the outside after installation, and the display part and the shell are directly exposed to the outside. Since the installation environment of the density relay is complex, when the installation environment of the density relay has many impurities or external structures, the display part exposed to the outside is easy to be polluted by impurities, causing damage to the display part, and the shell is easy to collide with the external structure, causing structural damage. UTILITY MODEL CONTENTS

[0005] The utility model aims at solving the problem that the display part exposed to the outside is easy to be polluted by impurities when the installation environment of the density relay has many impurities or external structures, causing damage to the display part, and the shell is easy to collide with the external structure, causing structural damage in the prior art, and proposes a protective mechanism for density relay.

[0006] In order to achieve the above object, the utility model discloses the following technical scheme: A kind of protective mechanism for density relay, including controller, detector and dial, the detector is installed on the upper surface of controller, the surface of the detector is equipped with dial, the side of the detector away from dial is equipped with connector, the surface of the detector is provided with protection assembly, the protection assembly includes shielding unit, the shielding unit includes positioning frame, the arc surface of the detector is fixedly connected with positioning frame, the side of the detector close to dial is equipped with support frame, the inner wall of support frame is fixedly connected with transparent cover, the side of support frame close to detector is fixedly connected with connecting sleeve one, the inner wall of connecting sleeve one is threadedly connected with bidirectional threaded rod;

[0007] The protection assembly further includes a reinforcing unit, the reinforcing unit includes a connecting sleeve two, the connecting sleeve two is threadedly connected with the surface of the bidirectional threaded rod, the side of the connecting sleeve two away from the bidirectional threaded rod is fixedly connected with a protective disc, and the side of the protective disc away from the detector is fixedly connected with a protective sleeve.

[0008] Preferably, the arc surface of the connector is fixedly connected with a load frame, and the inner wall of the protective sleeve is bolted to the load frame. The end of the protective sleeve away from the detector can be supported by the load frame to ensure the stability of the protective sleeve.

[0009] Preferably, the outer circumference of the protective sleeve is fixedly connected with a reinforcing rib, and the side surface of the protective disc is fixedly connected with the reinforcing rib. The connector can be reinforced by the cooperation of the protective sleeve and the load frame to ensure the stability of the connector during use.

[0010] Preferably, the number of positioning frames is two, and the two positioning frames are symmetrically arranged about the detector. The position of the bidirectional threaded rod can be limited by the positioning frame to ensure the locking effect of the bidirectional threaded rod.

[0011] Preferably, the transparent cover is located directly in front of the dial, the surface of the connecting sleeve one is in contact with the detector, and the side surface of the connecting sleeve one is in contact with the positioning frame. The dial can be protected by the transparent cover to ensure that the dial is in a closed environment during use.

[0012] Preferably, the surface of the connecting sleeve two is in contact with the detector, the side surface of the connecting sleeve two is in contact with the positioning frame, the surface of the protective disc is sleeved with the connector, and the surface of the protective sleeve is sleeved with the connector. The position of the connecting sleeve two can be locked by the cooperation of the connecting sleeve two and the bidirectional threaded rod.

[0013] Preferably, the number of reinforcing ribs is four, and the four reinforcing ribs are circumferentially arranged about the connector. The structural strength of the connection between the protective sleeve and the protective disc can be increased by the reinforcing ribs to improve the load capacity of the connection part.

[0014] Compared with the prior art, the density relay protection mechanism has the advantages and positive effects that:

[0015] In the utility model, through setting up the protection assembly, the density relay can be protected by the additional structure when using, thereby reducing the problem that the shell and display part of the density relay are exposed and easily damaged, and further improving the protection effect of the density relay on itself. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 A three-dimensional structure schematic diagram of the density relay protection mechanism is provided for the utility model;

[0017] Figure 2 A rear view structure schematic diagram of the density relay protection mechanism is provided for the utility model;

[0018] Figure 3 A protection assembly structure schematic diagram of the density relay protection mechanism is provided for the utility model;

[0019] Figure 4 A structure schematic diagram of the density relay protection mechanism is provided for the utility model; Figure 3 A structure schematic diagram of the density relay protection mechanism is provided for the utility model;

[0020] Figure 5 A structure schematic diagram of the density relay protection mechanism is provided for the utility model; Figure 3 A rear view structure schematic diagram of the density relay protection mechanism is provided for the utility model.

[0021] LEGEND:

[0022] 1, controller; 2, detector; 3, dial; 4, connector; 5, protection assembly; 51, shielding unit; 511, positioning frame; 512, support frame; 513, transparent cover; 514, connecting sleeve one; 515, bidirectional threaded rod; 52, reinforcing unit; 521, connecting sleeve two; 522, protection disc; 523, protective sleeve; 524, load frame; 525, reinforcing rib. DETAILED DESCRIPTION

[0023] Please refer to Figures 1-5 The utility model provides a technical scheme: a density relay protection mechanism, including controller 1, detector 2 and dial 3, detector 2 is installed on the upper surface of controller 1, the surface of detector 2 is installed with dial 3, the side of detector 2 away from dial 3 is installed with connector 4, and the surface of detector 2 is provided with protection assembly 5.

[0024] In the embodiment, the protection assembly 5 comprises a shielding unit 51, the shielding unit 51 comprises a positioning frame 511 fixedly connected with the arc surface of the detector 2, a supporting frame 512 is installed on the side of the detector 2 close to the dial 3, the inner wall of the supporting frame 512 is fixedly connected with a transparent cover 513, and a connecting sleeve one 514 is fixedly connected on the side of the supporting frame 512 close to the detector 2; the inner wall of the connecting sleeve one 514 is threadedly connected with a bidirectional threaded rod 515.

[0025] The protection assembly 5 further comprises a reinforcing unit 52, the reinforcing unit 52 comprises a connecting sleeve two 521 threadedly connected with the surface of the bidirectional threaded rod 515, a protection disc 522 is fixedly connected on the side of the connecting sleeve two 521 away from the bidirectional threaded rod 515, and a protective sleeve 523 is fixedly connected on the side of the protection disc 522 away from the detector 2.

[0026] Specifically, the arc surface of the joint 4 is fixedly connected with a load frame 524 which is bolted with the inner wall of the protective sleeve 523, and the end of the protective sleeve 523 away from the detector 2 is supported by the load frame 524 to ensure the stability of the protective sleeve 523.

[0027] Specifically, the outer circumference of the protective sleeve 523 is fixedly connected with a reinforcing rib 525 which is fixedly connected with the side surface of the protection disc 522.

[0028] In the embodiment, the protective sleeve 523 and the load frame 524 cooperate to reinforce the joint 4, thereby ensuring the stability of the joint 4 during use.

[0029] Specifically, the number of the positioning frames 511 is two, and the two positioning frames 511 are symmetrically arranged about the detector 2, and the position of the bidirectional threaded rod 515 is limited by the positioning frames 511 to ensure the locking effect of the bidirectional threaded rod 515.

[0030] In the embodiment, the transparent cover 513 is located in front of the dial 3, the connecting sleeve one 514 is in contact with the surface of the detector 2, and the connecting sleeve one 514 is in contact with the side surface of the positioning frame 511.

[0031] In the embodiment, the transparent cover 513 protects the dial 3 to ensure that the dial 3 is in a closed environment during use.

[0032] Specifically, the connecting sleeve two 521 is in contact with the surface of the detector 2, the connecting sleeve two 521 is in contact with the side surface of the positioning frame 511, the protection disc 522 is sleeved with the surface of the joint 4, the protective sleeve 523 is sleeved with the surface of the joint 4, and the position of the connecting sleeve two 521 is locked by the cooperation of the connecting sleeve two 521 and the bidirectional threaded rod 515.

[0033] Specifically, the number of reinforcing ribs 525 is four, and the four reinforcing ribs 525 are arranged in a circumferential array about the joint 4.

[0034] In this embodiment: the structural strength of the connection between the protective sleeve 523 and the protective disc 522 can be increased by the reinforcing ribs 525, so as to improve the load capacity of the connection part.

[0035] Working principle: when the density relay is used, the joint 4 is installed on the pipeline conveying gas, and the power supply is connected to the controller 1, the controller 1 is powered on and works, and cooperates with the detector 2, the dial 3 and the joint 4 to monitor the gas density in the conveying pipeline; before installing the density detector 2, align the two-way threaded rod 515 with the hole on the positioning frame 511, push the support frame 512, the support frame 512 pushes the two-way threaded rod 515 by cooperating with the connecting sleeve one 514, the two-way threaded rod 515 is inserted into the positioning frame 511, when the support frame 512 reaches the front of the detector 2, align the connecting sleeve two 521 with the two-way threaded rod 515, push the protective sleeve 523, the protective sleeve 523 is forced to push the protective disc 522, the protective sleeve 523 and the protective disc 522 are sleeved on the surface of the joint 4 during movement, when the protective disc 522 reaches the back of the detector 2, the protective sleeve 523 is fixed on the force carrier 524 by means of bolts, when the fixing of the protective sleeve 523 is completed, rotate the two-way threaded rod 515 clockwise, the two-way threaded rod 515 is rotated out of the connecting sleeve one 514 and is rotated into the connecting sleeve two 521, after the two-way threaded rod 515 is rotated into the connecting sleeve two 521 for a distance, the two-way threaded rod 515 can cooperate with the connecting sleeve one 514 and the connecting sleeve two 521 to fix the position of the support frame 512 and the protective disc 522, after the support frame 512 is fixed, the transparent cover 513 is fixed at the front end of the dial 3, and then the installation of the protection assembly 5 is completed, by setting the protection assembly 5, the density relay can be additionally protected when used, thereby reducing the problem that the shell and display part of the density relay are exposed and easily damaged, and further improving the protection effect of the density relay on itself.

Claims

1. A protection mechanism for a density relay comprising a controller (1), a detector (2) and a dial (3), characterized in that: The detector (2) is installed on the upper surface of the controller (1), the surface of the detector (2) is provided with a dial (3), the side of the detector (2) away from the dial (3) is provided with a connector (4), the surface of the detector (2) is provided with a protection assembly (5), the protection assembly (5) comprises a shielding unit (51), the shielding unit (51) comprises a positioning frame (511), the positioning frame (511) is fixedly connected with the arc surface of the detector (2), the side of the detector (2) close to the dial (3) is provided with a supporting frame (512), the inner wall of the supporting frame (512) is fixedly connected with a transparent cover (513), the side of the supporting frame (512) close to the detector (2) is fixedly connected with a connecting sleeve (514), the inner wall of the connecting sleeve (514) is threadedly connected with a bidirectional threaded rod (515). The protection assembly (5) further comprises a reinforcing unit (52), the reinforcing unit (52) comprises a connecting sleeve (521), the connecting sleeve (521) is threadedly connected with the surface of the bidirectional threaded rod (515), the side of the connecting sleeve (521) away from the bidirectional threaded rod (515) is fixedly connected with a protection disc (522), the side of the protection disc (522) away from the detector (2) is fixedly connected with a protective sleeve (523).

2. The protection mechanism for a density relay according to claim 1, characterized in that: The arc surface of the connector (4) is fixedly connected with a load frame (524), and the load frame (524) is bolted to the inner wall of the protective sleeve (523).

3. The protection mechanism for a density relay according to claim 1, wherein: The outer circumference of the protective sleeve (523) is fixedly connected with a reinforcing rib (525), and the reinforcing rib (525) is fixedly connected with the side surface of the protection disc (522).

4. The protection mechanism for a density relay of claim 1, wherein: The number of the positioning frames (511) is two, and the two positioning frames (511) are symmetrically arranged about the detector (2).

5. The protection mechanism for a density relay of claim 1, wherein: The transparent cover (513) is located in front of the dial (3), the connecting sleeve (514) is in contact with the surface of the detector (2), and the connecting sleeve (514) is in contact with the side surface of the positioning frame (511).

6. The protection mechanism for a density relay of claim 1, wherein: The connecting sleeve (521) is in contact with the surface of the detector (2), the connecting sleeve (521) is in contact with the side surface of the positioning frame (511), the protection disc (522) is sleeved with the surface of the connector (4), and the protective sleeve (523) is sleeved with the surface of the connector (4).

7. The protection mechanism for a density relay according to claim 3, wherein: The number of the reinforcing ribs (525) is four, and the four reinforcing ribs (525) are arranged in a circumferential array about the connector (4).

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