Plug type connector with good sealing performance

Abstract

The utility model relates to the field of plug type connectors, and discloses a plug type connector with good sealing performance, which comprises a female end connector and a male end connector, one end of the female end connector, which is correspondingly connected to the male end connector, is provided with a positioning ring, a female end head and an external thread; one end of the male end connector, which is correspondingly connected with the female end connector, is provided with a male end head matched with the female end head, and one end of the male end connector, which is correspondingly connected with the female end connector, is provided with an internal thread matched with the external thread; a spring device and a concave rubber sealing ring are connected to a positioning ring in the end, correspondingly connected to the male end connector, of the female end connector in a sleeved mode, and a sealing matching ring matched with the concave rubber sealing ring is arranged at the end, correspondingly connected to the female end connector, of the male end connector. The rubber sealing ring is matched with the threaded connection, and the spring device, the concave rubber sealing ring and the sealing matching ring are matched, so that the sealing performance of the plug connector is ensured through triple sealing performance guarantee.

Description

TECHNICAL FIELD

[0001] The utility model relates to plug connector field, concretely is a plug connector with good sealing performance. BACKGROUND

[0002] The traditional plug connector is usually used for electrical connection in harsh environment, such as in humid, dusty or chemical environment, is easily affected by external environment, leading to the sealing performance of traditional plug connector is greatly influenced by external environment, so its sealing performance cannot effectively prevent moisture, dust, chemical substances and other external substances from entering the inside of connector, thereby leading to the plug connector and electrical equipment damage, produce chain reaction, be influenced by poor sealing performance and other factors, the service life of traditional plug connector is relatively shorter, is easy to appear trouble or electric leakage etc. SUMMARY

[0003] (I) the technical problem solved

[0004] In view of the deficiencies of prior art, the utility model provides a plug connector with good sealing performance, solves the above-mentioned problems.

[0005] (II) technical scheme

[0006] In order to realize the above-mentioned purpose, the utility model provides the following technical scheme: a plug connector with good sealing performance mainly including female connector and male connector, the female connector is equipped with positioning ring, female head and outer thread to one end corresponding to the connection of male connector, and the male connector is equipped with the male head that is adapted to female head to one end corresponding to the connection of female connector, the male connector is equipped with the inner thread that is adapted to outer thread to one end corresponding to the connection of female connector, the positioning ring inside one end corresponding to the connection of female connector of male connector is sleeved with spring device and concave rubber sealing ring, the male connector is equipped with the sealing fit ring that is adapted to concave rubber sealing ring to one end corresponding to the connection of female connector, the female connector is equipped with rubber sealing ring to one end corresponding to the connection of male connector, the one end of female connector away from rubber sealing ring is connected with rubber sleeve I, the outer periphery of rubber sleeve I is equipped with wire locking ring I, the one end of male connector away from female connector is equipped with rubber sleeve II, the outer periphery of rubber sleeve II is equipped with wire locking ring II.

[0007] Preferably, the female end head is provided with three female end plug insertion holes at one end corresponding to the male end head, and the male end head is provided with three metal plugs of the same size at one end corresponding to the female end head, the female end head is welded with a wire I at one end away from the male end head, the wire I passes through the inside of the female end connector, the male end head is welded with a wire II at one end away from the female end head, and the wire II passes through the inside of the male end connector.

[0008] Preferably, the inside of the female end connector is provided with a wire passing hole around the axis, the inside of one end of the female end connector corresponding to the male end connector is provided with a first positioning boss, the first positioning boss is matched with the female end head, one end of the female end connector away from the male end connector is provided with a rubber sleeve I, and the periphery of the female end connector is provided with a female end hexagonal bolt head for matching with external equipment.

[0009] Preferably, the inside of the male end connector is provided with a wire passing hole around the axis, the inside of one end of the male end connector corresponding to the female end connector is provided with a sealing matching ring and a second positioning boss, the second positioning boss is matched with the male end head, and one end of the male end connector away from the female end connector is provided with a rubber sleeve I.

[0010] Preferably, the left and right ends of the rubber sealing ring are connected with the female end connector and the male end connector respectively, the rubber sealing ring is always in a compressed state, and the rubber sealing ring provides pre-tightening force for the matched connection of the external thread and the internal thread.

[0011] Preferably, the spring device is composed of an upper plate surface, a spring group and a lower plate surface, the spring group is arranged at the middle part of the spring device, the spring group is composed of four springs arranged at equal distances in a circle, the upper plate surface and the lower plate surface are welded at the two ends of the spring group, the matched connection holes are provided around the axis at the upper plate surface and the lower plate surface, the matched connection holes are matched with the sealing matching ring, the upper plate surface is in contact with the inner surface of the female end connector, and the lower plate surface is in contact with one end of the concave rubber sealing ring away from the working groove of the concave sealing ring.

[0012] Preferably, the wire locking ring I is made of a metal thin ring, the same size connection holes are provided at the two ends of the wire locking ring I, the two ends of the wire locking ring I are bent to be concentric with the two connection holes, and the hexagonal connecting bolt is connected to the connection holes of the wire locking ring I.

[0013] Preferably, the concave sealing ring is provided with a concave sealing ring matched hole around the axis, the concave sealing ring matched hole is matched with the positioning ring, the concave rubber sealing ring is provided with a concave sealing ring working groove at one end away from the spring device, and the concave sealing ring working groove is matched with the sealing matching ring.

[0014] (Three) beneficial effects

[0015] Compared with the prior art, the plug connector with good sealing has the following beneficial effects:

[0016] 1. The plug connector with good sealing, the wire locking ring is designed to ensure the positioning and sealing connection of the two ends of the wire, which is the first re-sealing guarantee; the plug connector is designed with an inner and outer thread cooperating rubber sealing ring, which is the second re-sealing guarantee; the plug connector is internally designed with a spring device cooperating with a concave sealing ring, which greatly improves the sealing performance of the plug connector, which is the third re-sealing guarantee.

[0017] 2. The plug connector with good sealing has a unique and novel structure design and excellent new positioning and fixing method, which is different from other plug connectors. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 The plug connector structure schematic view of the utility model;

[0019] Figure 2 The plug connector structure explosion schematic view of the utility model;

[0020] Figure 3 The female connector structure schematic view of the utility model;

[0021] Figure 4 The female connector structure cross-sectional schematic view of the utility model;

[0022] Figure 5 The male connector structure schematic view of the utility model;

[0023] Figure 6 The male connector structure cross-sectional schematic view of the utility model;

[0024] Figure 7 The spring device structure schematic view of the utility model;

[0025] Figure 8 The concave rubber sealing ring structure schematic view of the utility model.

[0026] In the figure: 1, wire I; 2, rubber sleeve I; 3, wire locking ring I; 4, female end hexagonal bolt head; 5, female end connector; 6, rubber sealing ring; 7, male end connector; 8, wire locking ring II; 9, rubber sleeve II; 10, wire II; 11, hexagonal connecting bolt; 12, connecting hole; 13, spring device; 14, concave rubber sealing ring; 15, female end head; 16, female end plug insertion hole; 17, metal plug; 18, male end head; 19, external thread; 20, first positioning boss; 21, positioning ring; 22, internal thread; 23, sealing fitting ring; 24, second positioning boss; 25, upper plate surface; 26, spring group; 27, fitting connecting hole; 28, lower plate surface; 29, concave sealing ring fitting hole; 30, concave sealing ring working groove. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0028] Please refer to Figures 1-8 A plug-in connector with good sealing performance mainly comprises a female end connector 5 and a male end connector 7. The female end connector 5 is provided with a positioning ring 21, a female end head 15 and an external thread 19 at one end corresponding to the connection of the male end connector 7. The male end connector 7 is provided with a male end head 18 corresponding to the female end head 15 at one end corresponding to the connection of the female end connector 5. The male end connector 7 is provided with an internal thread 22 corresponding to the external thread 19 at one end corresponding to the connection of the female end connector 5. The positioning ring 21 inside the one end of the female end connector 5 corresponding to the connection of the male end connector 7 is sleeved with a spring device 13 and a concave rubber sealing ring 14. The male end connector 7 is provided with a sealing fitting ring 23 corresponding to the concave rubber sealing ring 14 at one end corresponding to the connection of the female end connector 5. The female end connector 5 is provided with a rubber sealing ring 6 at one end corresponding to the connection of the male end connector 7. The female end connector 5 is provided with a rubber sleeve I 2 at one end away from the rubber sealing ring 6. The rubber sleeve I 2 is provided with a wire locking ring I 3 around the periphery. The male end connector 7 is provided with a rubber sleeve II 9 at one end away from the female end connector 5. The rubber sleeve II 9 is provided with a wire locking ring II 8 around the periphery.

[0029] The female end head 15 is provided with three female plug insertion holes 16 at one end corresponding to the connection of the male end head 18, and the male end head 18 is provided with three metal plugs 17 at one end corresponding to the connection of the female end head 15, the female end head 15 is welded with a wire I1 at one end away from the male end head 18, the wire I1 passes through the inside of the female connector 5, and the male end head 18 is welded with a wire 10 at one end away from the female end head 15, the wire 10 passes through the inside of the male connector 7.

[0030] The inside of the female connector 5 is provided with a wire through hole around the axis, the female connector 5 is provided with a first positioning boss 20 at one end inside corresponding to the connection of the male connector 7, the first positioning boss 20 is matched and connected with the female end head 15, the female connector 5 is provided with a rubber sleeve I2 at one end away from the male connector 7, and the female connector 5 is provided with a female hexagonal bolt head 4 at the periphery, which is used to match the external equipment.

[0031] The inside of the male connector 7 is provided with a wire through hole around the axis, the male connector 7 is provided with a sealing matching ring 23 and a second positioning boss 24 at one end inside corresponding to the connection of the female connector 5, the second positioning boss 24 is matched and connected with the male end head 18, and the male connector 7 is provided with a rubber sleeve I2 at one end away from the female connector 5.

[0032] The left and right ends of the rubber sealing ring 6 are connected with the female connector 5 and the male connector 7 respectively, the rubber sealing ring 6 is always in a state of being pressed, and the rubber sealing ring 6 provides pre-tightening force for the matched connection of the external thread 19 and the internal thread 22.

[0033] The spring device 13 is composed of an upper plate surface 25, a spring group 26 and a lower plate surface 28, the spring group 26 is arranged at the middle part of the spring device 13, the spring group 26 is composed of four springs arranged at equal distances in a circle, the upper plate surface 25 and the lower plate surface 28 are welded at the two ends of the spring group 26, the matched connection holes 27 are provided at the axis of the upper plate surface 25 and the lower plate surface 28, the matched connection holes 27 are matched and connected with the sealing matching ring 23, the upper plate surface 25 is in contact and connection with the inner surface of the female connector 5, and the lower plate surface 28 is in contact and connection with one end of the concave rubber sealing ring 14 away from the concave sealing ring working groove 30.

[0034] The wire locking ring I3 is made of a metal thin ring, the same size connection holes 12 are provided at the two ends of the wire locking ring I3, the two ends of the wire locking ring I3 are bent to be concentric with the two connection holes 12, and the hexagonal connecting bolt 11 is connected to the connection hole 12 of the wire locking ring I3.

[0035] The concave rubber sealing ring 14 is provided with a concave sealing ring matching hole 29 at the position around the shaft, and the concave sealing ring matching hole 29 is matched and connected with the positioning ring 21; the concave rubber sealing ring 14 is provided with a concave sealing ring working groove 30 at the end away from the spring device 13, and the concave sealing ring working groove 30 is matched and connected with the sealing matching ring 23.

[0036] Working principle: the plug connector is assembled according to the Figure 1 With Figure 2 The other end of the wire 10 is welded with the male end head 18 as a whole; the female end head 15 is inserted through the female end connector 5, and is positioned in the female end connector 5 to prevent longitudinal movement, and the spring device 13 and the concave rubber sealing ring 14 are placed in the female end connector 5, so that the female end assembly is completed; the male end head 18 is inserted through the male end connector 7, and is positioned in the male end connector 7.

[0037] The metal plug 17 is matched and connected with the female end plug inserted hole 16, the rubber sealing ring 6 is sleeved on the matched end face of the female end connector 5, and the male end connector 7 is connected with the female end connector 5 through threaded matching, at this time, the concave rubber sealing ring 14 in the plug connector is in contact with the sealing matching ring 23, the elastic force of the spring device 13 and the elastic force of the concave rubber sealing ring 14 itself ensure the absolute stability of the internal sealing, which is the third guarantee of sealing. Because the rubber sealing ring 6 is extruded, the elastic force of the rubber sealing ring 6 will generate a pre-tightening force between the threaded matching to make the connection more reliable, and the sealing performance is greatly improved, which is the second guarantee. Finally, the wire locking ring is tightened by the hexagonal connecting bolt 11, at the same time, the rubber sleeve 12 and the wire 11 are also tightened to ensure the sealing performance of the plug connector, which is the first guarantee. Under the action of the three guarantees, the sealing performance of the plug connector is greatly improved.

[0038] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A plug-in connector with a good seal, mainly comprising a female connector (5) and a male connector (7), characterized in that: The female end connector (5) is provided with a positioning ring (21), a female end head (15) and an external thread (19) at one end corresponding to the male end connector (7), and the male end connector (7) is provided with a male end head (18) matched with the female end head (15) at one end corresponding to the female end connector (5), and the male end connector (7) is provided with an internal thread (22) matched with the external thread (19) at one end corresponding to the female end connector (5), and the positioning ring (21) inside one end of the female end connector (5) corresponding to the male end connector (7) is sleeved with a spring device (13) and a concave rubber sealing ring (14), and the male end connector (7) is provided with a sealing ring (23) matched with the concave rubber sealing ring (14) at one end corresponding to the female end connector (5), and the female end connector (5) is provided with a rubber sealing ring (6) at one end corresponding to the male end connector (7), and the female end connector (5) is connected with a rubber sleeve I (2) at one end away from the rubber sealing ring (6), and the rubber sleeve I (2) is provided with a wire locking ring I (3) around the periphery, and the male end connector (7) is provided with a rubber sleeve II (9) at one end away from the female end connector (5), and the rubber sleeve II (9) is provided with a wire locking ring II (8) around the periphery.

2. The sealed plug connector of claim 1, wherein: The female end head (15) is provided with three female end plug insertion holes (16) at one end corresponding to the male end head (18), and the male end head (18) is provided with three metal plugs (17) matched with the female end plug insertion holes (16) at one end corresponding to the female end head (15), and the female end head (15) is welded with a wire I (1) at one end away from the male end head (18), and the wire I (1) passes through the inside of the female end connector (5), and the male end head (18) is welded with a wire II (10) at one end away from the female end head (15), and the wire II (10) passes through the inside of the male end connector (7).

3. The sealed plug connector of claim 1, wherein: The inside of the female end connector (5) is provided with a wire through hole around the axis, and the inside of one end of the female end connector (5) corresponding to the male end connector (7) is provided with a first positioning boss (20), and the first positioning boss (20) is matched and connected with the female end head (15), and the female end connector (5) is provided with a rubber sleeve I (2) at one end away from the male end connector (7), and the periphery of the female end connector (5) is provided with a female end hexagonal bolt head (4), and the female end hexagonal bolt head (4) is used to cooperate with external equipment.

4. The sealed plug connector of claim 1, wherein: The inside of the male end connector (7) is provided with a wire through hole around the axis, and the inside of one end of the male end connector (7) corresponding to the female end connector (5) is provided with a sealing ring (23) and a second positioning boss (24), and the second positioning boss (24) is matched and connected with the male end head (18), and the male end connector (7) is provided with a rubber sleeve I (2) at one end away from the female end connector (5).

5. The sealed plug connector of claim 1, wherein: The left and right ends of the rubber sealing ring (6) are connected with the female end connector (5) and the male end connector (7) respectively, the rubber sealing ring (6) is always in a compressed state, and the rubber sealing ring (6) provides pre-tightening force for the matched connection of the external thread (19) and the internal thread (22).

6. The sealed plug connector of claim 1, wherein: The spring device (13) is composed of an upper plate surface (25), a spring group (26) and a lower plate surface (28), the spring group (26) is arranged at the middle part of the spring device (13), the spring group (26) is composed of four springs arranged at equal distances, the upper plate surface (25) and the lower plate surface (28) are welded at the two ends of the spring group (26), the matching connecting holes (27) are formed at the shaft centers of the upper plate surface (25) and the lower plate surface (28), the matching connecting holes (27) are matched with the sealing matching ring (23), the upper plate surface (25) is in contact with the inner surface of the female end connector (5), and the lower plate surface (28) is in contact with the one end of the concave rubber sealing ring (14) away from the concave sealing ring working groove (30).

7. The sealed plug connector of claim 1, wherein: The wire locking ring I (3) is made of a metal thin ring, the same size connecting holes (12) are formed at the two ends of the wire locking ring I (3), the two ends of the wire locking ring I (3) are bent to be concentric with the two connecting holes (12), and the hexagonal connecting bolts (11) are connected to the connecting holes (12) of the wire locking ring I (3).

8. The sealed plug connector of claim 6, wherein: The concave rubber sealing ring (14) is provided with a concave sealing ring matching hole (29) at the shaft center, the concave sealing ring matching hole (29) is matched with the positioning ring (21), the concave rubber sealing ring (14) is provided with a concave sealing ring working groove (30) at the end away from the spring device (13), and the concave sealing ring working groove (30) is matched with the sealing matching ring (23).

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