CN201639225U - Two-way terminal box of ribbon heater - Google Patents
Two-way terminal box of ribbon heater Download PDFInfo
- Publication number
- CN201639225U CN201639225U CN2010201313015U CN201020131301U CN201639225U CN 201639225 U CN201639225 U CN 201639225U CN 2010201313015 U CN2010201313015 U CN 2010201313015U CN 201020131301 U CN201020131301 U CN 201020131301U CN 201639225 U CN201639225 U CN 201639225U
- Authority
- CN
- China
- Prior art keywords
- box body
- box
- lid
- box cover
- ribbon heater
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses a two-way terminal box of a ribbon heater, and aims to provide a terminal box which has better sealing effect so as to increase explosion-proof level and is convenient in use. The two-way terminal box comprises a box body and a box cover, a sealing gasket is disposed between the box body and the box cover, the box body, the sealing gasket and the box cover are integrally connected through fastening screws, a wiring terminal is fixed in the box body, two side surfaces of the box body are provided with wiring holes, each wiring hole is connected with a sealing end cap, wiring holes on the sealing end caps and the wiring holes on the box body form communicating holes, ribbon heater sealing parts are arranged in the communicating holes, the box cover is arc-shaped, the middle of the box cover is concave while two sides thereof are tilted upwards along a length direction, and the sealing gasket is provided with a plurality of cross seams. The box cover is arc-shaped, the middle of the box cover is concave while two sides thereof are tilted upwards, the middle of the box cover can be pressed better, and the cross seams are beneficial to reducing stress of the box cover to the sealing gasket during pressing, thereby achieving better sealing effect and being favorable for increasing the explosion-proof level.
Description
Technical field
The utility model relates to a kind of terminal box, in particular, relates to a kind of ribbon heater two logical terminal boxes.
Background technology
At present, for convenient for production, ribbon heater two logical terminal boxes adopt identical box body with ribbon heater threeway terminal box, and box body is made up of last connecting groove and following connecting groove, is connected with upper box cover and lower casing respectively on last connecting groove and the following connecting groove.Between upper box cover and the last connecting groove, be respectively arranged with gasket seal and lower seal pad between lower casing and the following connecting groove.In last connecting groove or following connecting groove, three binding posts are installed.Owing to only in a side joint wire casing, binding post is installed, and two lids that use are seen as broad as long from the outside, which connecting groove installation personnel is not known in binding post is installed, when opening a side lid, if there is not binding post, open the opposite side lid again after also needing again lid to be installed and carry out wiring, cause the inconvenience in the use.
On the other hand, upper box cover and lower casing are respectively intermediate drum along its length, the arcuation that both sides are curved down, because middle high, both sides are low, and after installation, both sides are easy to compress, and the middle part leaks gas easily, influences sealing effectiveness, reduces explosive-proof grade.And gasket seal is an integral type, is easy to generate stress after the sealing, and sealing effectiveness is not good.
In addition, between last connecting groove and upper box cover and the gasket seal, link into an integrated entity by holding screw respectively between connecting groove and lower casing and the gasket seal down, holding screw is made up of nut and screw rod, upper box cover and lower casing cooperate with screw rod respectively, when holding screw is backed out, break away from upper box cover and lower casing easily and fall down, bring inconvenience to installation.
The utility model content
The utility model is in order to overcome weak point of the prior art, a kind of better seal effect that has to be provided, to improve explosive-proof grade, ribbon heater two logical terminal boxes easy to use.
The utility model is achieved through the following technical solutions:
A kind of ribbon heater two logical terminal boxes, comprise box body and lid, be provided with gasket seal between described box body and the lid, link into an integrated entity by holding screw between box body and gasket seal and the lid, described box body internal fixation has binding post, on two sides of box body, be respectively arranged with wiring hole, be connected with end cover on each wiring hole respectively, form intercommunicating pore between wiring hole on the end cover and the wiring hole on the box body, be provided with the ribbon heater seal in the intercommunicating pore, it is characterized in that, described lid is middle recessed along its length, the tip-tilted arc in both sides, described gasket seal are provided with a plurality of crosss and crack.
Described holding screw is made up of nut, polished rod and screw rod, and the diameter of polished rod is less than the diameter of screw rod, and the screw on the lid matches with polished rod, and the diameter difference between described polished rod and the screw rod is 0.8-1.2mm.
The tangential direction of the end of arc that described lid both sides are upturned and the angle of horizontal direction are 3-6 °.
The utlity model has following technique effect:
1, ribbon heater two of the present utility model leads in the terminal boxes, has only a connecting groove in the box body, uses a lid, and the installation site that is easy to differentiate binding post is easy to use.
2, lid is the arcuation that middle recessed both sides upwarp in the two logical terminal boxes of ribbon heater of the present utility model, and the centre can better compress the sealing effectiveness that reaches better, helps improving explosive-proof grade.
3, ribbon heater two of the present utility model leads in the terminal boxes, and gasket seal is provided with a plurality of crosss and cracks, and lid to reach better sealing effectiveness, helps improving explosive-proof grade to the stress that gasket seal produces when helping to reduce to compress.
4, ribbon heater two of the present utility model leads in the terminal boxes, and holding screw is made up of nut, polished rod and screw rod, and the screw on the lid matches with polished rod, when holding screw is backed out, can not break away from lid and fall down, and has made things convenient for installation exercise.
Description of drawings
Fig. 1 is the front view of the utility model ribbon heater two logical terminal boxes;
Fig. 2 is the vertical view of the utility model ribbon heater two logical terminal boxes;
Fig. 3 is the schematic diagram of the utility model ribbon heater two logical terminal box lids;
Fig. 4 is the schematic diagram of the gasket seal of the utility model ribbon heater two logical terminal boxes;
Fig. 5 is that the holding screw and the lid position of the utility model ribbon heater two logical terminal boxes concerns schematic diagram.
Embodiment
Below in conjunction with specific embodiment the utility model is described in detail.
The schematic diagram of the utility model ribbon heater two logical terminal boxes as depicted in figs. 1 and 2, comprise box body 5 and lid 2, be provided with gasket seal 4 between box body 5 and the lid 2, link into an integrated entity by holding screw 3 between box body 5 and gasket seal 4 and the lid 2, described box body internal fixation has binding post, on two sides of box body, be respectively arranged with wiring hole, be connected with end cover 1 on each wiring hole respectively, form intercommunicating pore between wiring hole on the end cover and the wiring hole on the box body, be provided with the ribbon heater seal in the intercommunicating pore.The schematic diagram of lid as shown in Figure 3, described lid 2 is middle recessed along its length, the arc that both sides are upturned, the angle a of the tangential direction of end of arc and horizontal direction is 3-6 °, to reach the sealing effectiveness of the best.The schematic diagram of gasket seal as shown in Figure 4, gasket seal 4 is provided with a plurality of crosss and cracks 6.Cross cracks and is generally 5, and the centre is one, has four on every side.
Holding screw and lid position concern schematic diagram as shown in Figure 5, and holding screw is special design, and described holding screw 3 is made up of nut 7, polished rod 8 and screw rod 9, and polished rod does not partly have screw thread.The diameter of polished rod is less than the diameter of screw rod, screw on the lid matches with polished rod, be that the screw external diameter is slightly larger than the polished rod external diameter, but be slightly less than the screw rod external diameter, diameter difference between general polished rod and the screw rod is 0.8-1.2mm, when ensureing that holding screw passes lid smoothly, can prevent that again screw from coming off easily, for construction facilitates.
The utility model can improve sealing effectiveness by the improvement to box body, gasket seal, improves explosive-proof grade.Made things convenient for installation exercise by improvement to holding screw.
Claims (3)
1. a ribbon heater two leads to terminal boxes, comprise box body and lid, be provided with gasket seal between described box body and the lid, link into an integrated entity by holding screw between box body and gasket seal and the lid, described box body internal fixation has binding post, on two sides of box body, be respectively arranged with wiring hole, be connected with end cover on each wiring hole respectively, form intercommunicating pore between wiring hole on the end cover and the wiring hole on the box body, be provided with the ribbon heater seal in the intercommunicating pore, it is characterized in that, described lid is middle recessed along its length, the tip-tilted arc in both sides, described gasket seal are provided with a plurality of crosss and crack.
2. ribbon heater according to claim 1 two logical terminal boxes, it is characterized in that described holding screw is made up of nut, polished rod and screw rod, the diameter of polished rod is less than the diameter of screw rod, screw on the lid matches with polished rod, and the diameter difference between described polished rod and the screw rod is 0.8-1.2mm.
3. ribbon heater according to claim 1 two logical terminal boxes is characterized in that the tangential direction of the end of arc that described lid both sides are upturned and the angle of horizontal direction are 3-6 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201313015U CN201639225U (en) | 2010-03-16 | 2010-03-16 | Two-way terminal box of ribbon heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201313015U CN201639225U (en) | 2010-03-16 | 2010-03-16 | Two-way terminal box of ribbon heater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201639225U true CN201639225U (en) | 2010-11-17 |
Family
ID=43083731
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201313015U Expired - Fee Related CN201639225U (en) | 2010-03-16 | 2010-03-16 | Two-way terminal box of ribbon heater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201639225U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102522721A (en) * | 2011-12-26 | 2012-06-27 | 刘立文 | Two-way explosion-proof junction box |
| CN109121335A (en) * | 2018-09-19 | 2019-01-01 | 天津凌英科技有限公司 | A kind of external protection guards of 1553B Bus analyzer |
-
2010
- 2010-03-16 CN CN2010201313015U patent/CN201639225U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102522721A (en) * | 2011-12-26 | 2012-06-27 | 刘立文 | Two-way explosion-proof junction box |
| CN109121335A (en) * | 2018-09-19 | 2019-01-01 | 天津凌英科技有限公司 | A kind of external protection guards of 1553B Bus analyzer |
| CN109121335B (en) * | 2018-09-19 | 2023-09-22 | 天津凌英科技有限公司 | External protection device of 1553B bus analyzer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101117 Termination date: 20150316 |
|
| EXPY | Termination of patent right or utility model |