CN217362475U - Quick-insertion type explosion-proof cable lead-in device - Google Patents
Quick-insertion type explosion-proof cable lead-in device Download PDFInfo
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- CN217362475U CN217362475U CN202220579214.9U CN202220579214U CN217362475U CN 217362475 U CN217362475 U CN 217362475U CN 202220579214 U CN202220579214 U CN 202220579214U CN 217362475 U CN217362475 U CN 217362475U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T90/10—Technologies relating to charging of electric vehicles
- Y02T90/14—Plug-in electric vehicles
Abstract
The utility model relates to a quick-inserting type explosion-proof cable leading-in device, which comprises a switching component and a leading-in component, wherein the switching component is arranged on an leading-in hole preset on the surface of an explosion-proof electrical equipment or an explosion-proof instrument shell; the switching assembly comprises a switching sleeve, the outer surface of the switching sleeve is provided with explosion-proof threads, one end of the switching sleeve is provided with a blocking ring platform in a turning mode, the other end of the switching sleeve is provided with a limiting ring groove, an internal tooth gasket is arranged in the limiting ring groove, a sliding sleeve is coaxially arranged in the switching sleeve, one end of the sliding sleeve is provided with a pushing disk, the pushing disk is tightly supported and fixed with the blocking ring platform through a positioning screw at the end of an inner hexagonal cylinder, and the other end of the sliding sleeve is provided with a tip part which is used for point-press contact of the internal tooth gasket; the leading-in assembly is used for inserting the flexible cable protection pipe, the leading-in assembly comprises a leading-in pipe body, the leading-in pipe body is coaxially arranged in the sliding sleeve, and the end part of the leading-in pipe body is clamped with the inner teeth of the inner tooth gasket to realize socket locking. The utility model discloses novel structure, installation are quick, reduce to the cable destruction, and can realize the self-locking again.
Description
Technical Field
The utility model belongs to the technical field of the explosion-proof cable, a cable introducing device is related to, especially a formula explosion-proof cable introducing device inserts soon.
Background
Cables are mostly made of one or more mutually insulated conductors and an outer insulating protective layer, which is a conductor for transmitting power or information from one place to another; or a cable like a rope formed by twisting several or several groups of wires (at least two in each group), wherein the wires in each group are mutually insulated and are usually twisted around a center, and the whole outer surface is coated with a highly-insulated coating layer; the cable has the characteristics of internal electrification and external insulation; in the case of cable lead-in use, it is necessary to use a cable lead-in device, which is a device for leading a cable into electrical equipment without changing the explosion-proof type of the equipment.
However, most of the conventional cable leading-in devices are integrated structures, specifically, the sealing lock nut and the rear connecting pipe device are integrated structures, so that when a worker installs the cable leading-in device, the whole cable leading-in device can rotate along with the rotation of the flexible pipe, the cable is easily twisted in the installation process, and the toughness of the cable leading-in device is damaged. Therefore, a quick-plugging type lead-in device which is quick to install and does not damage cables is urgently needed.
The following patent documents relevant to the present application are found by search, and specific disclosures are as follows:
1. a special structure cable leading-in device in a junction box and a manufacturing method (CN113922571A) of the special structure cable leading-in device comprise a thread outer sleeve and are characterized in that a rubber sealing inner sleeve is arranged in the thread outer sleeve and comprises a copper pipe and a rubber sealing sleeve, the outer portion of the rubber sealing sleeve is connected with the copper pipe, and an explosion-proof joint surface is formed between the thread outer sleeve and the copper pipe.
2. An explosion-proof cable leading-in device (CN209029887U) comprises a shell, a cable inlet, a cable outlet, a sealing element for sealing the cable inlet of a rubber sleeve cable, and a protective O-shaped ring for dustproof and waterproof sealing, wherein the cable inlet and the cable outlet are internally provided with explosion-proof threads; the cable inlet of the armored sheathed cable is provided with an armored pressing device for pressing an armored layer, and explosion-proof curing daub is filled at a wire passing position between the cable inlet of the armored sheathed cable and the armored pressing device; the sealing element of the spare cable port consists of an anti-aging rubber sealing ring, a gasket, an explosion-proof plug and a plugging element.
3. The cable leading-in device (CN209200639U) comprises a main body, a compression nut, an explosion-proof colloid and a cable; the main body is of a columnar structure and extends along an axis, a cable hole penetrating through the main body along the axis direction is formed in the main body, the cable hole sequentially comprises a nut connecting section, a limiting and supporting section and a colloid filling section along the axis direction, the radial size of the nut connecting section is larger than that of the colloid filling section, the limiting and supporting section is connected with the nut connecting section and the colloid filling section, and a cable through hole penetrating through the compression nut along the axis direction is formed in the compression nut; the cable includes a cable main body and a wire harness provided on the cable main body; the cable penetrates through the cable hole, the compression nut is sleeved with the cable through hole and is in threaded connection with the nut connecting section, and the wire harness is simultaneously abutted by the compression nut and the limiting support section from two opposite directions; the explosion-proof colloid fills the gap between the cable and the colloid filling section.
Through the contrast of technical characteristics, above-mentioned patent publication with the utility model discloses a technical structure is inequality, can not influence the utility model discloses the creativity and the novelty of application.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome prior art's weak point, provide a novel structure, installation are quick, reduce to the cable destruction, and can realize the explosion-proof cable entry device of formula of inserting soon of self-locking again.
The utility model provides a its technical problem take following technical scheme to realize:
a quick-insertion type explosion-proof cable lead-in device comprises a switching assembly and a lead-in assembly, wherein the switching assembly is arranged on a lead-in hole which is preset on the surface of an explosion-proof electrical equipment or an explosion-proof instrument shell; the switching assembly comprises a switching sleeve, wherein an explosion-proof thread is formed on the outer surface of the switching sleeve, a blocking ring platform is coaxially formed on the outer surface of one end of the switching sleeve, a limiting ring groove is coaxially formed on the inner surface of the other end of the switching sleeve, an annular slot is further coaxially formed in the middle of the inner wall of the limiting ring groove and used for coaxially limiting and installing an internal tooth gasket, a sliding sleeve is coaxially installed in the switching sleeve, a pushing disc is coaxially installed at one end of the sliding sleeve and is tightly supported and fixed with the blocking ring platform of the switching sleeve through an inner hexagonal cylindrical end positioning screw, the other end of the sliding sleeve is manufactured into a tip structure and is used for carrying out point pressing contact on the internal tooth surface of the internal tooth gasket, a limiting ring is further coaxially formed on the outer surface of the sliding sleeve close to the tip position, and the limiting ring is clamped with the limiting ring groove in the switching sleeve; the leading-in assembly is used for inserting a flexible cable protection pipe and comprises a leading-in pipe body and a leading-in connector, wherein one end of the leading-in pipe body is an inserting end, and the other end of the leading-in pipe body is coaxially provided with the leading-in connector; the leading-in pipe body is coaxially arranged in a sliding sleeve of the switching assembly, and the insertion end of the leading-in pipe body is clamped with the internal teeth of the internal tooth gasket to realize socket locking.
Moreover, an explosion-proof joint surface is formed between the adapter sleeve and the sliding sleeve; and an explosion-proof joint surface is also formed between the sliding sleeve and the introducing pipe body.
And, there is a limit ring platform on the external surface of the leading-in pipe body at the side where the leading-in joint is installed.
Moreover, the internal tooth washer is of an elastic metal sheet structure.
Moreover, a ring groove is formed on the surface of the insertion end of the introducing pipe body, and the ring groove and the internal tooth washer are clamped and installed to realize locking; and the depth of the annular groove is 1/3 the depth of the annular slot.
And the end part of the internal tooth gasket is bent towards one side of the insertion direction of the introducing pipe body and is fixed by encircling the outer wall of the introducing pipe body by the end part of the internal tooth.
Moreover, the leading-in connector comprises a through pipe, and a cable protection pipe is coaxially arranged in the through pipe; and one end of the through pipe is coaxially provided with a pressing ring.
And, the service coupling includes the joint body, installs the cable protection pipe in the joint body, and connects body one end and seals, is filled with the filler in this cable protection pipe.
The utility model has the advantages that:
the utility model changes the traditional integrated form, changes the traditional threaded connection into socket joint type connection, greatly improves the installation speed, and simultaneously solves the problems that the flexible pipe is easy to distort and the toughness of the cable is damaged in the installation process;
the utility model discloses an inner tooth packing ring cooperation promotes interior hexagonal cylinder end set screw on the dish, has realized the locking and the release of device socket joint, and the spacing ring platform setting on the introduction body of introducing the subassembly can insert to introducing the body and play and block spacing effect, avoids introducing the body and inserts too much to cause the harm to the inner tooth packing ring.
Drawings
Fig. 1 is a schematic structural view of embodiment 1 of the present invention;
fig. 2 is a schematic structural view of embodiment 2 of the present invention;
fig. 3 is a schematic structural view of the internal tooth washer of the present invention.
Detailed Description
The present invention will be described in more detail with reference to the following embodiments, which are provided by way of illustration and not limitation, and the scope of the present invention should not be limited thereby.
Example 1, as shown in figure 1:
a quick-insertion type explosion-proof cable lead-in device comprises a switching assembly and a lead-in assembly 1, wherein the switching assembly is installed on a wire inlet hole preset on the surface of an explosion-proof electrical equipment or an explosion-proof instrument shell; the switching component comprises a switching sleeve 3, the outer surface of the switching sleeve is provided with an explosion-proof thread, the outer surface of one end of the switching sleeve is coaxially lathed with a blocking ring platform, the inner surface of the other end of the switching sleeve is coaxially provided with a limit ring groove, the middle part of the inner wall of the limit ring groove is also coaxially provided with an annular slot, an external tooth 4-2 for coaxially limiting and installing an internal tooth gasket 4, a sliding sleeve 5 is coaxially installed in the adapter sleeve, one end of the sliding sleeve is coaxially provided with a pushing disc 6, the pushing disc is supported and fixed with a blocking ring platform of the adapter sleeve through a positioning screw 2 at the end of the inner hexagonal cylinder, the other end of the sliding sleeve is made into a tip structure, used for carrying out point pressing contact on the surface of an internal tooth 4-1 of the internal tooth gasket, and a limit ring is coaxially arranged on the outer surface of the sliding sleeve close to the tip part, the limiting ring is in limiting clamping with a limiting ring groove in the adapter sleeve to prevent the sliding sleeve from sliding out of the adapter sleeve;
the leading-in assembly is used for inserting a flexible cable protection pipe 9 and comprises a leading-in pipe body 7 and a leading-in connector 8, the leading-in pipe body is a hollow pipe body, a cable protection pipe is coaxially installed in the pipe body, the outer surface of the pipe body is smooth, one end of the pipe body is an inserting end, and the other end of the pipe body is coaxially provided with the leading-in connector; the leading-in pipe body is coaxially arranged in a sliding sleeve of the switching assembly, and an insertion end of the leading-in pipe body is clamped with the internal teeth of the internal tooth gasket to realize socket locking;
in the specific implementation of the utility model, an explosion-proof joint surface is formed between the adapter sleeve and the sliding sleeve; an explosion-proof joint surface is also formed between the sliding sleeve and the introducing pipe body;
furthermore, a limit ring table is arranged on the outer surface of the introducing pipe body on one side where the introducing joint is arranged, and socket limiting is further realized by the limit ring table;
the internal tooth washer is of a metal sheet structure and has certain deformation toughness; the end part of the sliding sleeve is made into a tip part, so that the sliding sleeve slides in the adapter sleeve to realize point pressing on the internal teeth of the internal tooth gasket; thereby realizing the release of the lead-in pipe body of the lead-in assembly by the internal tooth gasket; when the leading-in pipe body of the leading-in assembly needs to be pulled out of the sliding sleeve of the switching assembly, the knob pushes the positioning screw at the slotted cylindrical end on the movable disc, so that the tip end of the sliding sleeve presses the internal teeth of the internal tooth gasket, the internal teeth of the internal tooth gasket are inwards extruded and deformed to be separated from the surface of the leading-in pipe body, and the leading-in assembly can be pulled out at the moment;
the locking between the insertion end of the introducing pipe body and the inner teeth of the inner tooth washer can be realized through the following two forms;
a ring groove is arranged on the surface of an insertion end of an introducing pipe body, and internal teeth of an internal tooth gasket are locked by clamping with the ring groove; the depth of the ring groove is 1/3 of the depth of the ring-shaped slot, so that the internal tooth gasket can be fixedly clamped in the adapter sleeve and cannot be separated due to the drawing and inserting of the introduced pipe body;
the other type is that the end part of the internal tooth gasket is bent towards one side of the insertion direction of the introducing pipe body and is clamped and fixed by the end part of the internal tooth in a surrounding manner; the mode is convenient to insert, and simultaneously, the internal teeth of the internal tooth gasket are bent towards the inserting direction, so that the function of back locking is realized;
the leading-in connector comprises a through pipe, and a cable protection pipe is coaxially arranged in the through pipe; the cable protection tube is made of rubber, and a plurality of cables are arranged in parallel inside the cable protection tube; a compression ring is coaxially arranged at one end of the through pipe, and the leading-in connector is coaxially inserted into the end part of the leading-in pipe body through the through pipe to realize installation;
example 2:
as shown in fig. 2, similar to example 1, except that:
the lead-in connector comprises a connector body, one end of the connector body is closed, the end part of the connector body is made into a plug connector, the other end of the connector body is provided with a cable protection pipe, a plurality of strands of cables which are arranged in parallel are arranged in the cable protection pipe, and the cable protection pipe is filled with filler to fix the plurality of strands of cables.
When the utility model is used, the switching component is firstly arranged on a wire inlet hole which is preset on the surface of the electrical equipment or the junction box; the leading-in pipe body of the leading-in assembly is inserted into the sliding sleeve of the switching assembly, the limiting ring table of the leading-in pipe body and the internal tooth washer in the switching assembly are clamped and locked, and installation is completed.
The cable is arranged in the cable protection pipe, the cable protection pipe is placed in the lead-in pipe body, the lead-in pipe body is coaxially inserted into a sliding sleeve of the switching assembly, and a second layer of explosion-proof joint face is formed between the lead-in pipe body and the sliding sleeve; thereby further protecting the cable;
the utility model discloses an equipment use as follows:
1. assembling of each part:
the component parts include: the device comprises a transfer sleeve, a sliding sleeve, a pushing disc, an internal tooth gasket, a slotted cylindrical end positioning screw, an introduction outer pipe and an introduction joint;
firstly, assembling a switching assembly, and firstly inserting a sliding sleeve from one side of the switching sleeve, which is provided with a limit ring groove; a limiting ring of the sliding sleeve is clamped with a limiting ring groove of the adapter sleeve, then a pushing disc is installed at one end of the sliding sleeve, which extends out of the sliding sleeve, in a threaded manner, an inner hexagonal cylindrical end positioning screw is arranged on the pushing disc, and is supported and fastened with a blocking ring platform of the connecting sleeve, and then the inner tooth gasket is clamped in an annular slot of the sliding sleeve; completing the installation of the switching assembly;
then assembling an introducing assembly, and connecting an introducing pipe body with an introducing joint; arranging a cable protection pipe in the internal lead-in component;
2. installation:
firstly, mounting a switching assembly on a wire inlet hole preset on the surface of an explosion-proof electrical equipment or an explosion-proof instrument shell, then extending a cable into an introducing pipe body of an introducing assembly, coaxially inserting the introducing pipe body of the introducing assembly into a sliding sleeve of the switching assembly, and forming a second layer of explosion-proof joint surface with the sliding sleeve; namely the installation is finished;
3. disassembling:
the knob promotes hexagon socket head cap end set screw on the dish, and manual promotion pushes away dish and sliding sleeve for sliding sleeve cusp point presses internal tooth of internal tooth packing ring, thereby makes the internal tooth of internal tooth packing ring to inserting direction extrusion deformation and introducing body surface separation, can extract the introduction body that introduces the subassembly this moment, dismantles promptly and accomplishes.
The utility model changes the traditional integrated form, changes the traditional threaded connection into the socket joint type connection, greatly improves the installation speed, and simultaneously solves the problems that the cable is easy to distort and the toughness of the cable is damaged in the installation process;
after the utility model is installed, a first layer of flame-proof joint surface is formed between the switching sleeve and the sliding sleeve, a second layer of flame-proof joint surface is formed between the sliding sleeve and the introducing pipe body, and the explosion-proof effect is greatly improved by the arrangement of the two layers of flame-proof joint surfaces;
the utility model discloses an inner tooth packing ring cooperation promotes hexagon socket head cap cylinder end set screw on the dish, has realized the locking and the release of device socket joint, and the spacing ring platform setting on the introduction body of introducing the subassembly can insert to play and block spacing effect introducing the body, avoids introducing the body and inserts too much to cause the harm to the inner tooth packing ring.
Although the embodiments of the present invention and the accompanying drawings are disclosed for illustrative purposes, those skilled in the art will appreciate that: various substitutions, changes and modifications are possible without departing from the spirit and scope of the present invention and the appended claims, and therefore, the scope of the present invention is not limited to the disclosure of the embodiments and the accompanying drawings.
Claims (8)
1. The utility model provides a formula explosion-proof cable entry device inserts soon which characterized in that: the anti-explosion electric appliance equipment comprises a switching assembly and an introducing assembly, wherein the switching assembly is mounted on an introducing hole preset on the surface of an anti-explosion electric appliance equipment or an anti-explosion instrument shell; the switching assembly comprises a switching sleeve, the outer surface of the switching sleeve is provided with explosion-proof threads, the outer surface of one end of the switching sleeve is coaxially lathed with a blocking ring platform, the inner surface of the other end of the switching sleeve is coaxially provided with a limiting ring groove, the middle part of the inner wall of the limiting ring groove is also coaxially provided with an annular slot for coaxially limiting and installing an internal tooth gasket, a sliding sleeve is coaxially installed in the switching sleeve, one end of the sliding sleeve is coaxially provided with a pushing disc, the pushing disc is tightly supported and fixed with the blocking ring platform of the switching sleeve through a hexagon socket head positioning screw, the other end of the sliding sleeve is provided with a tip structure for carrying out point pressing contact on the surface of an internal tooth of the internal tooth gasket, the outer surface of the sliding sleeve close to the tip position is also coaxially provided with a limiting ring, and the limiting ring is limited and clamped with the limiting ring groove in the switching sleeve; the leading-in assembly is used for inserting a flexible cable protection pipe and comprises a leading-in pipe body and a leading-in connector, wherein one end of the leading-in pipe body is an inserting end, and the other end of the leading-in pipe body is coaxially provided with the leading-in connector; the leading-in pipe body is coaxially arranged in a sliding sleeve of the switching assembly, and the insertion end of the leading-in pipe body is clamped with the internal teeth of the internal tooth gasket to realize socket locking.
2. The quick-plugging explosion-proof cable leading-in device according to claim 1, characterized in that: an explosion-proof joint surface is formed between the adapter sleeve and the sliding sleeve; and an explosion-proof joint surface is also formed between the sliding sleeve and the introducing pipe body.
3. The quick-plugging explosion-proof cable leading-in device according to claim 1, characterized in that: the outer surface of the leading-in pipe body at one side of the leading-in connector is provided with a limit ring platform.
4. The quick-plugging explosion-proof cable leading-in device according to claim 1, characterized in that: the internal tooth washer is of an elastic metal sheet structure.
5. The quick-plugging explosion-proof cable leading-in device according to claim 1, characterized in that: a ring groove is formed on the surface of the insertion end of the introducing pipe body, and the ring groove and the internal tooth gasket are clamped and mounted to realize locking; and the depth of the annular groove is 1/3 the depth of the annular slot.
6. The quick-plugging explosion-proof cable leading-in device according to claim 1, characterized in that: the end part of the internal tooth washer bends towards one side of the insertion direction of the introducing pipe body, and the end part of the internal tooth encircles the outer wall of the introducing pipe body to be fixed.
7. The quick-plugging explosion-proof cable leading-in device according to claim 1, characterized in that: the leading-in connector comprises a through pipe, and a cable protection pipe is coaxially arranged in the through pipe; and one end of the through pipe is coaxially provided with a pressing ring.
8. The quick-plugging explosion-proof cable leading-in device according to claim 1, characterized in that: the leading-in connector comprises a connector body, a cable protection pipe is arranged in the connector body, one end of the connector body is closed, and the cable protection pipe is filled with filler.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220579214.9U CN217362475U (en) | 2022-03-17 | 2022-03-17 | Quick-insertion type explosion-proof cable lead-in device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220579214.9U CN217362475U (en) | 2022-03-17 | 2022-03-17 | Quick-insertion type explosion-proof cable lead-in device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217362475U true CN217362475U (en) | 2022-09-02 |
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ID=83051914
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220579214.9U Active CN217362475U (en) | 2022-03-17 | 2022-03-17 | Quick-insertion type explosion-proof cable lead-in device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217362475U (en) |
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2022
- 2022-03-17 CN CN202220579214.9U patent/CN217362475U/en active Active
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