Quick installation fire hose coupling

Abstract

The utility model relates to fire water pipe joint technical field discloses a kind of fire water pipe joints of quick installation, including joint front section, joint rear section, the joint front section is connected with shower head, the joint rear section is connected with hose, the joint front section, the joint rear section are mutually contacted and the ring slide groove is set in one side, the joint front section, the joint rear section are mutually contacted and the hook type sliding block is fixedly installed on one side, when carrying out fire extinguishing, only need to aim at joint front section, joint rear section, let the hook type sliding block on joint front section, joint rear section aim at positioning slot, then joint front section, joint rear section are closed, rotate joint front section or joint rear section so that hook type sliding block and positioning slot are staggered, the installation of joint front section, joint rear section can be completed, then it can be prevented to be separated by clamping anti -unhooking mechanism and preventing to be separated, simple and quick, set positioning protrusion is used for auxiliary installation, and then each structure is positioned.

Description

Technical Field

[0001] This utility model relates to the field of fire water pipe joint technology, specifically a quick-installation fire water pipe joint. Background Technology

[0002] Most buildings are equipped with fire-fighting equipment, such as conventional fire extinguishers and fire hydrants. Fire hydrants are typically paired with quick-connect fittings that connect to flexible water pipes and nozzles. To use them, the fittings are snapped into place on the corresponding part of the fire hydrant. Existing fire hose fittings generally use a sleeve to secure the flexible water pipe, then connect it to the inlet via threads. Some fittings use a snap-fit ​​connection method, with protrusions and grooves on the interface surface for a snap-fit ​​connection. This method is faster, but to ensure quick insertion, the grooves and protrusions are only loosely fitted, which can lead to instability after connection. Utility Model Content

[0003] The purpose of this invention is to provide a quick-installation fire water pipe connector to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a quick-installation fire hose connector, comprising a front section and a rear section, wherein the front section is connected to a sprinkler head and the rear section is connected to a hose; an annular groove is provided on the contacting side of the front and rear sections; a hook-shaped slider is fixedly installed on the contacting side of the front and rear sections; a positioning groove is provided on the contacting side of the front and rear sections; both the annular groove and the hook-shaped slider have hook-shaped cross-sections, and the annular groove and the hook-shaped slider are in clearance fit; the positioning groove communicates with the annular groove, and the inner diameter of the positioning groove is larger than the outer diameter of the hook-shaped slider; positioning protrusions are fixedly provided on the outer walls of both the front and rear sections; and an anti-detachment mechanism is provided between the front and rear sections.

[0005] The anti-detachment mechanism includes a through groove and a socket. The through groove is located in the rear section of the connector, and the socket is located in the front section of the connector. A plug is slidably disposed in the through groove. The end of the plug facing the front section of the connector is inserted into the socket. A connecting plate is fixedly installed on the end of the plug facing away from the front section of the connector. A spring is fixedly installed on the outer wall of the connecting plate. One end of the spring is fixedly connected to the inner wall of the through groove. An L-shaped pull plate is fixedly installed on the outer wall of the connecting plate. One end of the L-shaped pull plate extends out from the through groove.

[0006] Furthermore, the length of the insert is greater than the depth of the socket, and the edges and ends of the insert are rounded.

[0007] Furthermore, an external threaded pipe is fixedly installed on the front section of the connector, and the external threaded pipe is threadedly connected to the inner wall of the nozzle.

[0008] Furthermore, an inner support tube is fixedly installed on the inner wall of the rear section of the connector, the flexible hose is sleeved on the inner support tube, and the contact part between the flexible hose and the inner support tube is fixed by a clamp.

[0009] Furthermore, a thumb plate is fixedly installed at one end of the L-shaped pull plate outside the through groove, and the outer diameter of the thumb plate is larger than the inner diameter of the through groove.

[0010] Furthermore, a sealing ring is provided on the inner wall of the rear section of the connector, and one end of the sealing ring extends into the front section of the connector.

[0011] Furthermore, the front and rear sections of the connector are each provided with two sets of hook-shaped sliders and positioning grooves, and each set of hook-shaped sliders corresponds one-to-one with the positioning groove.

[0012] Furthermore, the outer wall of the rear section of the connector is provided with anti-slip texture, and there are multiple anti-slip textures on the rear section of the connector.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. When extinguishing fires, simply align the front and rear sections of the connector, align the hook-shaped sliders on the front and rear sections with the positioning grooves, then close the front and rear sections. Rotate the front or rear section to disengage the hook-shaped sliders from the positioning grooves to complete the installation of the front and rear sections. Then, engage the anti-detachment mechanism to prevent detachment. It is simple and quick. Positioning protrusions are provided to assist in the installation and to position each structure.

[0015] 2. Before closing the front and rear sections of the connector, pull the L-shaped pull plate to move the connecting plate, which in turn moves the insert block, retracting it into the through slot. After closing the front and rear sections, rotate either the front or rear section to misalign the hook-shaped slider with the positioning slot and align the insert block with the insertion hole. Release the L-shaped pull plate, and the spring will push the connecting plate to move, pushing one end of the insert block into the insertion hole. This prevents the front section of the connector from rotating relative to the rear section, thus preventing the hook-shaped slider from aligning with the positioning slot and avoiding the problem of the front and rear sections of the connector separating. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the structure when the front and rear ends of the connector of this utility model are connected;

[0018] Figure 3 This utility model Figure 2 A structural schematic diagram of the top sectional view;

[0019] Figure 4 This utility model Figure 2 Exploded view of the structure;

[0020] Figure 5 This is a schematic diagram of the structure of the rear section of the connector of this utility model;

[0021] Figure 6 This is a structural schematic diagram of the insert block, connecting plate, spring, and L-shaped pull plate of this utility model.

[0022] In the diagram: 1. Front section of connector; 101. External threaded pipe; 2. Rear section of connector; 201. Inner support pipe; 202. Anti-slip texture; 3. Positioning protrusion; 4. Nozzle; 5. Hose; 6. Clamp; 7. Sealing ring; 8. Anti-detachment mechanism; 801. Through groove; 802. Insertion hole; 803. Insertion block; 804. Connecting plate; 805. L-shaped pull plate; 806. Spring; 9. Thumb plate; 10. Annular slide groove; 11. Hook-shaped slider; 12. Positioning groove. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0024] Please see Figures 1-6This utility model provides a technical solution: a quick-installation fire hose connector, including a front section 1 and a rear section 2. The front section 1 is connected to a sprinkler head 4, and the rear section 2 is connected to a hose 5. An annular groove 10 is formed on the contacting surface of the front section 1 and the rear section 2. A hook-shaped slider 11 is fixedly installed on the contacting surface of the front section 1 and the rear section 2. A positioning groove 12 is formed on the contacting surface of the front section 1 and the rear section 2. The cross-sections of the annular groove 10 and the hook-shaped slider 11 are both hook-shaped, and the annular groove 10 and the hook-shaped slider 11 are clearance-fitted. The positioning groove 12 communicates with the annular groove 10, and the inner diameter of the positioning groove 12 is larger than that of the hook-shaped slider 11. The outer diameter of the slider 11 and the outer walls of the front section 1 and the rear section 2 of the connector are both fixedly provided with positioning protrusions 3. An anti-detachment mechanism 8 is provided between the front section 1 and the rear section 2 of the connector. When fire extinguishing, simply align the front section 1 and the rear section 2 of the connector, align the hook-shaped slider 11 on the front section 1 and the rear section 2 of the connector with the positioning groove 12, then close the front section 1 and the rear section 2 of the connector, rotate the front section 1 or the rear section 2 of the connector to make the hook-shaped slider 11 and the positioning groove 12 misaligned, and the installation of the front section 1 and the rear section 2 of the connector can be completed. Then the anti-detachment mechanism 8 is engaged to prevent detachment. It is simple and quick. The positioning protrusions 3 are set to assist in the installation and thus position each structure.

[0025] The anti-detachment mechanism 8 includes a through groove 801 and an insertion hole 802. The through groove 801 is located in the rear section 2 of the connector, and the insertion hole 802 is located in the front section 1 of the connector. A plug 803 is slidably disposed in the through groove 801. The end of the plug 803 facing the front section 1 of the connector is inserted into the insertion hole 802. A connecting plate 804 is fixedly installed on the end of the plug 803 facing away from the front section 1 of the connector. A spring 806 is fixedly installed on the outer wall of the connecting plate 804. One end of the spring 806 is fixedly connected to the inner wall of the through groove 801. An L-shaped pull plate 805 is fixedly installed on the outer wall of the connecting plate 804. One end of the L-shaped pull plate 805 extends out of the through groove 801. Before the front section 1 and the rear section 2 of the connector are closed... Pulling the L-shaped pull plate 805 moves the connecting plate 804, which in turn moves the insert block 803, causing the insert block 803 to retract into the through groove 801. After closing the front section 1 and the rear section 2 of the connector, rotate the front section 1 or the rear section 2 of the connector so that the hook-shaped slider 11 is misaligned with the positioning groove 12 and the insert block 803 is aligned with the insertion hole 802. Release the L-shaped pull plate 805, and the spring 806 pushes the connecting plate 804 to move, thereby pushing one end of the insert block 803 into the insertion hole 802, so that the front section 1 of the connector cannot rotate relative to the rear section 2 of the connector, and thus the hook-shaped slider 11 cannot be aligned with the positioning groove 12, thereby avoiding the problem of the front section 1 and the rear section 2 of the connector separating.

[0026] The length of the plug 803 is greater than the depth of the socket 802, so that the plug 803 will not come out of the through groove 801 even if it is inserted into the socket 802. The edges and ends of the plug 803 are rounded to reduce the friction force on the plug 803 during movement and reduce the wear of the plug 803.

[0027] An external threaded pipe 101 is fixedly installed on the front section 1 of the connector. The external threaded pipe 101 is threadedly connected to the inner wall of the nozzle 4. The front section 1 of the connector and the nozzle 4 are connected by a threaded connection, which makes it easy to replace the nozzle 4.

[0028] An inner support tube 201 is fixedly installed on the inner wall of the rear section 2 of the connector. The hose 5 is sleeved on the inner support tube 201. The contact part between the hose 5 and the inner support tube 201 is fixed by a clamp 6. The clamp 6 is used to tighten and fix the hose, which can effectively prevent the hose 5 from separating from the rear section 2 of the connector during the fire extinguishing process.

[0029] A thumb plate 9 is fixedly installed at one end of the L-shaped pull plate 805 outside the through groove 801. The outer diameter of the thumb plate 9 is larger than the inner diameter of the through groove 801. The thumb plate 9 is set to make it convenient for users to pull the L-shaped pull plate 805.

[0030] A sealing ring 7 is provided on the inner wall of the rear section 2 of the connector. One end of the sealing ring 7 extends into the front section 1 of the connector to increase the sealing effect at the connection between the front section 1 and the rear section 2 of the connector.

[0031] The front section 1 and the rear section 2 of the connector are each provided with two sets of hook-shaped sliders 11 and positioning grooves 12, and each set of hook-shaped sliders 11 corresponds to the positioning grooves 12 one by one, increasing the connection points and making the connection between the front section 1 and the rear section 2 of the connector more secure.

[0032] The outer wall of the rear section 2 of the connector is provided with anti-slip texture 202, and there are multiple anti-slip textures 202 on the rear section 2 of the connector. The anti-slip textures 202 make it less likely for the user to slip when connecting the front section 1 and the rear section 2 of the connector. When connecting the front section 1 and the rear section 2 of the connector, the nozzle 4 can be used as a grip on the front section 1 of the connector, while the hose 5 cannot be used as a grip. When connecting, the user can only grip the rear section 2 of the connector. Therefore, the addition of anti-slip textures 202 can effectively prevent the user from slipping.

[0033] Working principle: During use, when connecting, hold the nozzle 4 with one hand and the rear section 2 of the connector with the other hand. Pull down the thumb plate 9 with the fingers of the hand holding the rear section 2, which in turn moves the L-shaped pull plate 805. The L-shaped pull plate 805 moves the connecting plate 804, which in turn moves the insert block 803, retracting the insert block 803 into the through groove 801. Align the front section 1 and the rear section 2 of the connector with the positioning protrusions 3, and then close the front section 1 and the rear section 2. The hook-shaped slider 11 extends from the positioning groove 12 into the annular groove 10. Then, the nozzle 4 is rotated to drive the front section 1 of the connector to rotate, so that the hook-shaped slider 11 is misaligned with the positioning groove 12. After reaching the next positioning point, the thumb plate 9 is released, and the spring 806 pushes the connecting plate 804 to move, thereby pushing one end of the insert 803 into the insertion hole 802, so that the front section 1 of the connector cannot rotate relative to the rear section 2 of the connector, and thus the hook-shaped slider 11 cannot be aligned with the positioning groove 12, thereby avoiding the problem of the front section 1 and the rear section 2 of the connector separating.

[0034] Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

Claims

1. A quick-installation fire hose connector, comprising a front section (1) and a rear section (2), characterized in that: The front section (1) of the connector is connected to the nozzle (4), and the rear section (2) of the connector is connected to the hose (5). An annular groove (10) is provided on the side of the front section (1) and the rear section (2) of the connector that are in contact with each other. A hook-shaped slider (11) is fixedly installed on the side of the front section (1) and the rear section (2) of the connector that are in contact with each other. A positioning groove (12) is provided on the side of the front section (1) and the rear section (2) of the connector that are in contact with each other. The cross-section of the annular groove (10) and the hook-shaped slider (11) are both hook-shaped, and the annular groove (10) and the hook-shaped slider (11) are in clearance fit. The positioning groove (12) is connected to the annular groove (10), and the inner diameter of the positioning groove (12) is larger than the outer diameter of the hook-shaped slider (11). A positioning protrusion (3) is fixedly provided on the outer wall of the front section (1) and the rear section (2) of the connector. An anti-detachment mechanism (8) is provided between the front section (1) and the rear section (2) of the connector. The anti-detachment mechanism (8) includes a through groove (801) and a socket (802). The through groove (801) is opened in the rear section (2) of the connector, and the socket (802) is opened in the front section (1) of the connector. A plug (803) is slidably arranged in the through groove (801). The end of the plug (803) facing the front section (1) of the connector is inserted into the socket (802). A connecting plate (804) is fixedly installed on the end of the plug (803) facing away from the front section (1) of the connector. A spring (806) is fixedly installed on the outer wall of the connecting plate (804). One end of the spring (806) is fixedly connected to the inner wall of the through groove (801). An L-shaped pull plate (805) is fixedly installed on the outer wall of the connecting plate (804). One end of the L-shaped pull plate (805) extends out from the through groove (801).

2. The quick-installation fire hose connector according to claim 1, characterized in that: The length of the plug (803) is greater than the depth of the socket (802), and the edges and ends of the plug (803) are rounded.

3. The quick-installation fire hose connector according to claim 1, characterized in that: An external threaded pipe (101) is fixedly installed on the front section (1) of the connector, and the external threaded pipe (101) is threadedly connected to the inner wall of the nozzle (4).

4. A quick-installation fire hose connector according to claim 1, characterized in that: An inner support tube (201) is fixedly installed on the inner wall of the rear section (2) of the connector, and the hose (5) is sleeved on the inner support tube (201). The contact part between the hose (5) and the inner support tube (201) is fixed by a clamp (6).

5. A quick-installation fire hose connector according to claim 1, characterized in that: A thumb plate (9) is fixedly installed at one end of the L-shaped pull plate (805) outside the through groove (801), and the outer diameter of the thumb plate (9) is larger than the inner diameter of the through groove (801).

6. A quick-installation fire hose connector according to claim 1, characterized in that: The inner wall of the rear section (2) of the connector is provided with a sealing ring (7), one end of which extends into the front section (1) of the connector.

7. A quick-installation fire hose connector according to claim 1, characterized in that: The hook-shaped sliders (11) and positioning grooves (12) on the front section (1) and rear section (2) of the connector are each provided with two sets, and each set of hook-shaped sliders (11) corresponds one-to-one with the positioning grooves (12).

8. A quick-installation fire hose connector according to claim 1, characterized in that: The outer wall of the rear section (2) of the connector is provided with anti-slip texture (202), and there are multiple anti-slip textures (202) on the rear section (2) of the connector.

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