CN110748726A - Fire hose connector - Google Patents

Abstract

The invention discloses a fire hose connector, which comprises an inner connector and an outer connector sleeved on the inner connector, wherein the inner connector comprises an inner plug inserted into a fire hose, a fixed table connected with the inner plug, a disassembly table connected with the fixed table and an outer connector connected with the fixed table; the outer connecting piece comprises a pressing part which is sleeved outside the fire hose and matched with the inner plug, and a locking platform which is connected with the pressing part and matched with the fixed platform; wherein, the fixed station is connected with the locking platform in a matching way through a threaded connection. According to the invention, the compressing component is sleeved outside the fire hose, the inner plug is inserted into the fire hose and is screwed up through the threads between the locking table and the fastening table, so that the connection of the fire hose is realized, the fire hose is uniformly stressed during connection, the leakage and even breakage of the fire hose at the connection part caused by uneven stress are avoided, and the guarantee is improved for the smooth test of the fire hose.

Description

Fire hose connector

Technical Field

The invention relates to the technical field of fire fighting equipment, in particular to a fire hose connector.

Background

The fire hose is a hose for conveying high-pressure water, foam and other flame-retardant liquids, the fire hose takes rubber as a lining, the outer surface of the fire hose is wrapped by linen, or the fire hose is made of polyurethane and other polymer materials, metal joints are arranged at two ends of the fire hose, and the fire hose can be connected with another hose to prolong the distance or connected with a nozzle to increase the liquid jet pressure. The performance of the fire hose directly affects the effectiveness of fire rescue, so the performance of the fire hose needs to be tested when the fire hose leaves a factory, and when the fire hose leaves a factory, the fire hose is provided with metal connectors, if the pressure bearing capacity of the fire hose is relatively tested, one end of the fire hose needs to be fixed on the fire hose, and the other end needs to be sealed and plugged, so the pressure bearing capacity can be tested, therefore, a corresponding fire hose connector needs to be designed, and the existing connector generally adopts two compressed pipes with flanges, one pipe is sleeved and compressed on the outer side of the fire hose, the other compressed pipe is inserted into the inner side of the fire hose, and the fire compressed hose is connected between the two compressed pipes in a bolt connection mode, when the two compressed pipes are compressed by a bolt, because the bolt in each position can not guarantee when connecting that simultaneous screwing up makes everywhere atress condition all the same between two pressure pipes, can cause the pressure pipe at the in-process that compresses tightly the fire hose, the position circumference atress that its fire hose is connected is uneven, when the pressure-bearing test of suppressing, causes the leakage of junction or even fracture easily, can not be fine the test requirement of completion fire hose bearing capacity. Therefore, it is necessary to design a device that can ensure that the fire hose is uniformly stressed in the circumferential direction of the connection part when the connection and fixation are performed, so as to ensure the smooth performance of the pressure-bearing test of the fire hose.

Disclosure of Invention

The technical problem to be solved by the invention is as follows: the utility model provides a fire hose coupling realizes that fire hose can the even atress in the circumference at the connection position of two links, guarantees that fire hose connection position bears the same tight pressure to provide effectual test guarantee for fire hose's pressure-bearing test.

In order to achieve the purpose, the technical scheme adopted by the invention is as follows:

a fire hose connector comprises an inner connector and an outer connector sleeved on the inner connector, wherein the inner connector comprises an inner plug inserted into a fire hose, a fixed table connected with the inner plug, a disassembly table connected with the fixed table and an outer connector connected with the fixed table; the outer connecting piece comprises a pressing part which is sleeved outside the fire hose and matched with the inner plug, and a locking platform which is connected with the pressing part and matched with the fixed platform; the fixing table and the locking table are connected and locked in a matched mode in a threaded connection mode.

Preferably, the fixed table is connected to the inner plug through a bearing, and the inner plug can rotate relative to the fixed table.

Further, the outer wall of the inner plug and the inner wall of the compressing part are in a mutually matched conical structure.

Furthermore, a plurality of printing grooves which are distributed at intervals and used for increasing the friction force of the inner plug are also arranged on the outer wall of the inner plug.

Furthermore, the outer edges of the disassembling table and the locking table are both of square structures.

In particular, the outer joint is a tubular structure provided with external threads for the external connection part.

Specifically, the outer joint can also be a dead end plug and is used for connecting and plugging the fire hose.

Compared with the prior art, the invention has the following beneficial effects:

(1) the inner connecting piece and the outer connecting piece are connected in a threaded connection mode, the compressing part is sleeved on the outer side of the fire hose, the inner plug is inserted into the fire hose and is screwed tightly through threads between the locking table and the fastening table, so that the fire hose is compressed on the outer side of the inner plug through the compressing part, the inner wall of the compressing part and the outer wall of the inner plug are in a mutually matched conical structure, when the locking table is screwed tightly and tightly, the more the locking table is screwed, the tighter the fire hose is connected, because of the threaded connection mode, when the compressing part and the inner plug compress the fire hose in the tightening process, the circumferential stress is equal, the stress is uniform when the fire hose is connected, and the phenomenon that the fire hose leaks or even breaks due to uneven stress at the connecting part is avoided, the method improves the guarantee for the smooth test of the fire hose.

(2) The fixing table is connected with the inner inserting head through the bearing, the inner inserting head can rotate relative to the fixing table, when the fire hose is connected, the fire hose and the fastener do not rotate relatively, stress uniformity of connection extrusion is further improved, meanwhile, a plurality of grooves which are distributed at intervals and used for increasing friction force of the grooves are formed in the outer wall of the inner inserting head, friction resistance between the fire hose and the inner inserting head is also improved, and connection stability of the fire hose is improved.

(3) The outer joint of the inner connecting piece can be a threaded pipe for connecting the pressing equipment and can also be a dead end for sealing and plugging, the practicability of the inner connecting piece is improved, meanwhile, the outer edges of the disassembling table and the locking table are both of a square structure, the clamping of a clamping tool on the disassembling table and the locking table is facilitated, and the connection convenience between the locking table and the fastening table is improved.

Drawings

FIG. 1 is a schematic view of an interconnect structure according to the present invention.

Fig. 2 is a schematic structural view of the external connecting member of the present invention.

Wherein, the names corresponding to the reference numbers are:

1-inner connecting piece, 2-outer connecting piece, 3-inner plug, 4-fixed table, 5-disassembling table, 6-outer joint, 7-pressing part and 8-locking table.

Detailed Description

The present invention will be further described with reference to the following description and examples, which include but are not limited to the following examples.

As shown in FIGS. 1-2:

a fire hose connector comprises an inner connector 1 and an outer connector 2, wherein the outer connector is connected to the inner connector through threads; specifically, the inner connecting piece 1 comprises an inner plug 3 inserted into the fire hose, the inner plug 3 is of a hollow tubular structure, after the inner plug 3 is inserted into the fire hose, the inner wall of the fire hose and the outer wall of the inner plug are tightly attached together, pressure transmission of pressurized liquid in the fire hose is achieved through the inner plug, and in order to increase the compression friction force between the outer wall of the inner plug and the inner wall of the fire hose, a plurality of printing grooves distributed at intervals are formed in the outer wall of the inner plug; interior joint 3 is connected with fixed station 4, and the outer wall of fixed station 4 sets up the external screw thread, for the convenience of the connection that sticiss of fire hose, fixed station 4 and interior joint 3 are connected through the bearing, but interior joint 3 relative fixed station 4 rotates to set up the seal groove at the position that fixed station and interior joint are connected, fill the sealing washer in the seal groove, be used for to the fixed station with interior joint be connected the back sealed.

4 fixedly connected with of fixed station dismantles platform 5, dismantles the joint that platform 5 is used for outside instrument, and the atress of the in-connection union piece of being convenient for is fixed, makes things convenient for the threaded connection of in-connection union piece and outer connecting piece, dismantles the joint of platform 5 for the promotion, and the outer fringe of dismantling platform 5 sets up square structure, can make things convenient for instruments such as spanner to the joint of dismantling the platform.

The disassembling table 5 is connected with an outer joint 6, the outer joint 6 can be a tubular structure with external threads or a dead end, and when the outer joint 6 is the tubular structure with the external threads, the outer joint can be connected with an external pressing device; when the outer joint 6 is a dead plug, the outer joint can be used for sealing one end of a fire hose, one end of the fire hose is connected with external pressing equipment, and the other end of the fire hose is sealed and plugged, so that the pressure bearing capacity test of the fire hose can be realized.

The outer connecting piece 2 comprises a pressing part 7 which is sleeved outside the fire hose and matched with the inner plug 3, and a locking platform 8 which is connected with the pressing part 7 and matched with the fixed platform 4; the inner wall of the locking platform is provided with internal threads which are matched with the external threads of the fixed platform to realize a threaded connection structure, meanwhile, in order to facilitate the clamping connection of the locking platform and an external labor-saving tool, the outer edge of the locking platform is provided with a square structure, and the locking platform is clamped by clamping the labor-saving tool such as a wrench and the like, so that the threaded connection between the locking platform and the fixed platform can be realized by the aid of the tool; insert the head 3 inboard with inserting, sticis the part 7 cover and establish in the fire hose outside, locking through the threaded connection of locking platform and fixed station, only pressing the fire hose in insert the head 3 and sticis the part 7 between, realize the connection of fire hose.

In order to realize the threaded connection locking of the locking table and the fixing table, the degree of compaction between the inner plug 3 and the compaction part 7 is increasingly tightened along with the screwing of the threads, and the outer wall of the inner plug 3 and the inner wall of the compaction part 7 are in a mutually matched conical structure.

The above-mentioned embodiment is only one of the preferred embodiments of the present invention, and should not be used to limit the scope of the present invention, but all the insubstantial modifications or changes made within the spirit and scope of the main design of the present invention, which still solve the technical problems consistent with the present invention, should be included in the scope of the present invention.

Claims (7)

1. The utility model provides a fire hose connector which characterized in that: comprises an inner connecting piece (1) and an outer connecting piece (2); the inner connecting piece (1) comprises an inner plug (3) inserted into a fire hose, a fixed table (4) connected with the inner plug (3), a disassembling table (5) connected with the fixed table (4), and an outer joint (6) connected with the fixed table (4); the outer connecting piece (2) comprises a pressing part (7) which is sleeved on the outer side of the fire hose and matched with the inner plug (3), and a locking table (8) which is connected with the pressing part (7) and matched with the fixed table (4); the fixing table (4) and the locking table (8) are matched, connected and locked in a threaded connection mode.

2. A fire hose connector according to claim 1, wherein: the fixed table (4) is connected with the inner plug (3) through a bearing, and the inner plug (3) can rotate relative to the fixed table (4).

3. A fire hose connector according to claim 2, wherein: the outer wall of the inner plug (3) and the inner wall of the pressing part (7) are in mutually matched conical structures.

4. A fire hose connector according to claim 3, wherein: the outer wall of the inner plug (3) is also provided with a plurality of printing grooves which are distributed at intervals and used for increasing the friction force of the inner plug.

5. A fire hose connector according to claim 1, wherein: the outer edges of the disassembling table (5) and the locking table (8) are both square structures.

6. A fire hose connector according to claim 1, wherein: the outer joint (6) is a tubular structure with external threads and is used for an external connecting part.

7. A fire hose connector according to claim 1, wherein: the outer joint (6) is a dead plug and is used for connecting and plugging the fire hose.

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