Explosion-proof connecting structure for bunching component and explosion-proof shell of transmitter

Abstract

The utility model discloses an explosion-proof connecting structure of a transmitter bunching component and an explosion-proof shell, relates to the technical field of instruments and meters, and aims to solve the technical problem that the angle adjustment of a transmitter is affected by the current compression type connecting mode, and the explosion-proof connecting structure comprises a transmitter shell, a cable bunching component and an adjusting assembly, one side of the transmitter shell is provided with a connecting port, and the other side of the transmitter shell is provided with a connecting rod. Side holes are formed in the two sides of the opening end of the connecting port in a penetrating mode, the cable bunching component is inserted into the connecting port, a first assembling groove and a second assembling groove are formed in the cable bunching component, and an eccentric side opening is formed in the outer side of the sealing ring; the adjusting assembly comprises a fixed ring fixed in the side hole, a sliding ring slidably installed in the side hole and elastically connected with the fixed ring, an insertion column fixed to the inner side of the sliding ring, and a tightening screw installed in the side hole in a threaded mode. The utility model has the advantages that the clamping and locking mechanism is provided, and the angle of the transmitter is convenient to adjust.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of instrument and meter, more particularly to a kind of explosion-proof connection structure of transmitter wiring part and explosion-proof housing. BACKGROUND

[0002] In instrument and meter industry, sensor and transmitter are connected by the cable of specific signal, and the cable wiring part and the entrance of transmitter shell must be designed with explosion-proof to meet the safety requirements of instrument under special working conditions. Therefore, the related design of wiring part and transmitter connection is particularly important.

[0003] The wiring part and the shell of traditional instrument are connected by thread tightening or bolt compression explosion-proof surface. In actual application, thread tightening may cause thread loosening, and both thread tightening and bolt compression explosion-proof surface cannot realize small-angle rotation of transmitter dial. Therefore, the utility model provides an explosion-proof connection structure of transmitter wiring part and explosion-proof housing. UTILITY MODEL CONTENTS

[0004] The utility model aims at overcoming the shortcomings of prior art, adapting to reality needs, and providing an explosion-proof connection structure of transmitter wiring part and explosion-proof housing to solve the technical problem of current compression connection affecting the angle adjustment of transmitter.

[0005] To solve the above technical problems, the utility model provides the following technical scheme: an explosion-proof connection structure of transmitter wiring part and explosion-proof housing, comprising a transmitter housing, a cable wiring part and an adjusting assembly. The transmitter housing is provided with a connecting port on one side, and side holes are formed on both sides of the opening end of the connecting port. The cable wiring part is inserted into the connecting port. First and second assembly grooves are formed in the cable wiring part, and a compression ring and a sealing ring are respectively installed in the first and second assembly grooves. An eccentric side opening is formed on the outer side of the sealing ring. The adjusting assembly comprises a fixed ring fixed in the side hole, a sliding ring elastically connected with the fixed ring and slidingly installed in the side hole, a plug-in column fixed on the inner side of the sliding ring, and a tight screw threadedly installed in the side hole.

[0006] Preferably, a clamping groove is formed in the connecting port, the outer diameter of the sealing ring is greater than the inner diameter of the connecting port, and the side opening of the sealing ring is adapted to the curved surface of the clamping groove.

[0007] Preferably, the cable wiring part is provided with a pressing surface at the outer end, the pressing surface is annular, and the pressing surface is attached to the connecting port.

[0008] Preferably, the outer side of the compression ring is provided with an inclined stress surface, and the inner end of the plug-in column is provided with an inclined pressing surface, and the inclined pressing surface is opposite to the stress surface.

[0009] Preferably, the fixed ring and the sliding ring are connected by a spring, and the spring is sleeved outside the insertion column, and the front end of the insertion column penetrates through the inside of the fixed ring.

[0010] Preferably, the tail end of the insertion column is fixed inside the sliding ring, the inner end of the jacking screw presses the sliding ring to slide and displace in the side hole, and the inner end of the insertion column is inserted into the first assembly groove to clamp and limit the cable binding component.

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

[0012] 1、The utility model discloses when using, the cable binding component is inserted into the connecting port, and the sealing is completed through the sealing ring, the both sides insertion column is inserted into the first assembly groove and is completed clamping and limiting, can rotate the cable binding component from the outer end and complete angle adjustment, and the device is assembled conveniently, and the clamping and limiting after insertion can complete installation, and the table head can rotate around the cable binding component axis after installation, and display operation adjustment is convenient.

[0013] 2、The utility model discloses when the cable binding component is inserted and installed, the sealing ring forms the stress deformation surface through the eccentric side opening, and the sealing ring is deformed and adheres to the inner wall of the connecting port in the insertion process, resets when the sealing ring enters the clamping groove, and the inner end of the jacking screw is extruded to the insertion column, and the inclined pressure surface of the insertion column extrudes the stress surface of the compression ring, so that the cable binding component is driven to displace outward with a small interval, and the sealing ring is simultaneously driven to displace, and the side opening of the sealing ring completely adheres to one side of the clamping groove, improves the sealing adhesion, enhances the sealing property through the above operation, changes the design of the sealing ring shape, reduces the resistance in the insertion process, and reduces the installation difficulty. ACCURACY

[0014] Figure 1 It is the front view structural schematic drawing of the utility model;

[0015] Figure 2 It is the unfolded structural schematic drawing of the utility model;

[0016] Figure 3 It is the utility model Figure 2 It is the enlarged structural schematic drawing of A of the utility model;

[0017] Figure 4 It is the cable binding component schematic drawing of the utility model;

[0018] Figure 5 It is the side view structural schematic drawing of the utility model;

[0019] Figure 6 It is the compression ring structural schematic drawing of the utility model;

[0020] Figure 7 It is the sealing ring structural schematic drawing of the utility model;

[0021] Figure 8 The adjusting assembly of the utility model is a schematic view.

[0022] Figure 9 The plug-in post structure of the utility model is a schematic view.

[0023] Mark explanation in the drawing: 1, transmitter shell; 101, clamping groove; 102, connecting port; 103, side hole; 2, cable binding component; 201, pressing surface; 202, first assembly groove; 203, second assembly groove; 3, adjusting assembly; 301, fixing ring; 302, plug-in post; 303, tight screw; 304, spring; 305, inclined pressing surface; 306, sliding ring; 4, pressing ring; 401, stress surface; 5, sealing ring; 501, side opening. DETAILED DESCRIPTION

[0024] As Figures 1 to 5 shown, the utility model relates to a kind of explosion-proof connection structure of transmitter binding component and explosion-proof housing, including transmitter shell 1, cable binding component 2 and adjusting assembly 3, transmitter shell 1 side is equipped with connecting port 102, and both sides of the opening end of connecting port 102 are both through and equipped with side hole 103, cable binding component 2 is inserted in connecting port 102, first assembly groove 202 and second assembly groove 203 are equipped on cable binding component 2, and pressing ring 4 and sealing ring 5 are respectively installed in first assembly groove 202 and second assembly groove 203, eccentric side opening 501 is equipped on the outside of sealing ring 5, connecting port 102 is equipped with clamping groove 101 inside, the outer diameter of sealing ring 5 is greater than the inner diameter of connecting port 102, and the side opening 501 of sealing ring 5 is adapted to the curved surface of clamping groove 101, cable binding component 2 is equipped with pressing surface 201 outside end, pressing surface 201 is annular, and pressing surface 201 is attached to connecting port 102, when using, cable binding component 2 is inserted in connecting port 102, connecting surface is sealed by sealing ring 5, both sides plug-in post 302 is inserted in first assembly groove 202 and is completed clamping limit, can be rotated cable binding component 2 from outer end and complete angle adjustment, the device is assembled conveniently, clamping limit can be completed installation after insertion, after installation, head can rotate around cable binding component 2 axis, it is convenient for display operation adjustment.

[0025] As Figures 4 to 9The utility model relates to a kind of explosion-proof connection structure of transmitter cable binding component and explosion-proof housing, including transmitter shell 1, cable binding component 2 and adjusting assembly 3, adjusting assembly 3 includes fixed ring 301 fixed in side hole 103, sliding ring 306 slidingly installed in side hole 103 and with fixed ring 301 elastic connection, insert post 302 fixed in the inboard of sliding ring 306, and tight screw 303 is screw-mounted in side hole 103, the outer side of compression ring 4 is equipped with inclined force surface 401, and the inboard of insert post 302 is equipped with inclined pressure surface 305, and inclined pressure surface 305 is to accept force surface 401, fixed ring 301 and sliding ring 306 are connected by spring 304, and spring 304 is sleeved on the outer side of insert post 302, insert post 302 front end passes through the inside of fixed ring 301, insert post 302 tail end is fixed in the inboard of sliding ring 306, tight screw 303 inboard presses sliding ring 306 to make it slide displacement in side hole 103, the inboard of insert post 302 is inserted in first assembly groove 202 and holds cable binding component 2, when cable binding component 2 is inserted and installed, sealing ring 5 is formed by eccentric side opening 501 to form force deformation surface, extrude sealing ring 5 during insertion process to make it deformation fit connection port 102 inner wall, when sealing ring 5 enters clamping groove 101 and resets, screw-mounted tight screw 303 makes its inboard extrude insert post 302, the inclined pressure surface 305 of insert post 302 extrude the force surface 401 of compression ring 4, to make it drive cable binding component 2 to small interval displacement outward, synchronously drive sealing ring 5 displacement, and the side opening 501 of sealing ring 5 is completely fitted with the side of clamping groove 101, improve sealing fit degree, by the above operation, the sealing property is enhanced, the design of changing the shape of sealing ring 5, reduce the resistance in insertion process, reduce installation difficulty.

[0026] Working principle: the embodiment provides a kind of explosion-proof connection structure of transmitter cable binding component and explosion-proof housing, when using, cable binding component 2 is inserted in connection port 102, sealing is completed by sealing ring 5 on connection surface, two side insert posts 302 are inserted in first assembly groove 202 and complete clamping limit, can be rotated cable binding component 2 from outer end to complete angle adjustment, when cable binding component 2 is inserted and installed, sealing ring 5 is formed by eccentric side opening 501 to form force deformation surface, extrude sealing ring 5 during insertion process to make it deformation fit connection port 102 inner wall, when sealing ring 5 enters clamping groove 101 and resets, screw-mounted tight screw 303 makes its inboard extrude insert post 302, the inclined pressure surface 305 of insert post 302 extrude the force surface 401 of compression ring 4, to make it drive cable binding component 2 to small interval displacement outward, synchronously drive sealing ring 5 displacement, and the side opening 501 of sealing ring 5 is completely fitted with the side of clamping groove 101, improve sealing fit degree.

[0027] The utility model discloses an embodiment discloses the better embodiment, but is not limited to this, and the ordinary skill of the art, the spirit of the utility model is appreciated to the above -mentioned embodiment, and different extension and change are made, but as long as not departing from the spirit of the utility model, all are in the protection range of the utility model.

Claims

1. An explosion-proof connection structure of a transmitter cable harness component and an explosion-proof housing, comprising a transmitter housing (1), a cable harness component (2) and an adjusting assembly (3), characterized in that: The transmitter shell (1) is provided with a connecting port (102) on one side, and side holes (103) are provided on both sides of the opening end of the connecting port (102), the cable binding component (2) is inserted into the connecting port (102), the cable binding component (2) is provided with a first assembly groove (202) and a second assembly groove (203), and a compression ring (4) and a sealing ring (5) are respectively sleeved and installed in the first assembly groove (202) and the second assembly groove (203), and the outer side of the sealing ring (5) is provided with an eccentric side opening (501). The adjusting assembly (3) comprises a fixed ring (301) fixed in the side hole (103), a sliding ring (306) slidingly installed in the side hole (103) and elastically connected with the fixed ring (301), a plug column (302) fixed on the inner side of the sliding ring (306), and a tight screw (303) screwedly installed in the side hole (103).

2. The flameproof connection of a transmitter bundle member to an explosion-proof housing according to claim 1, characterized in that: The connecting port (102) is internally provided with a clara groove (101), the outer diameter of the sealing ring (5) is greater than the inner diameter of the connecting port (102), and the side opening (501) of the sealing ring (5) is adapted to the curved surface of the clara groove (101).

3. The flameproof connection of a transmitter bundle member to an explosion-proof housing according to claim 2, characterized in that: The cable binding component (2) is provided with a pressing surface (201) at the outer end, the pressing surface (201) is annular, and the pressing surface (201) is attached to the connecting port (102).

4. The flameproof connection of a transmitter bundle member to an explosion-proof housing according to claim 3, wherein: The outer side of the compression ring (4) is provided with an inclined stress surface (401), the inner end of the plug column (302) is provided with an inclined pressing surface (305), and the inclined pressing surface (305) is adapted to the stress surface (401).

5. The flameproof connection of a transmitter bundle member to an explosion-proof housing according to claim 4, characterized in that: The fixed ring (301) and the sliding ring (306) are connected through a spring (304), and the spring (304) is sleeved on the outer side of the plug column (302), and the plug column (302) passes through the inside of the fixed ring (301).

6. The flameproof connection of a transmitter bundle member to an explosion-proof housing according to claim 5, characterized in that: The tail end of the plug column (302) is fixed on the inner side of the sliding ring (306), the inner end of the tight screw (303) presses the sliding ring (306) to slide and displace in the side hole (103), and the inner end of the plug column (302) is inserted into the first assembly groove (202) to clamp and limit the cable binding component (2).

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