Fire sprinkler head

Abstract

The fire sprinkler head comprises a sprinkler head body and a positioning installation structure fixedly arranged below an installation plate, the sprinkler head body is communicated with a fire hose installed on the installation plate, the positioning installation structure is provided with a sliding groove and a notch groove located in one side of the sliding groove in the radial direction, and the position of the notch groove in the circumferential direction of the sliding groove is adjustable. The spray head body comprises a spray head assembly and a watering assembly which are connected with each other, one end of the spray head assembly is arranged in the sliding groove in a pluggable and penetrating mode and is provided with a limiting end extending in the radial direction of the sliding groove, and the fire sprinkler head has a connecting state and a detachable state; the limiting end is located between the mounting plate and the notch groove in the mounting direction of the spray head body, and the notch groove and the limiting end are staggered in the circumferential direction of the sliding groove; in the detachable state, the notch groove rotates to the position right opposite to the limiting end, and the limiting end penetrates through the notch groove in a sliding mode. By means of the scheme, the problem that in the prior art, a fire sprinkler head is troublesome to disassemble and assemble can be solved.

Description

Technical Field

[0001] The utility model relates to the technical field of fire fighting, in particular to a fire sprinkler. Background Art

[0002] The existing fire sprinkler nozzles still have certain defects when in use. For example, the temperature-sensitive glass ball of the fire sprinkler nozzle is filled with an organic solution with a high thermal expansion coefficient. At room temperature, the outer shell of the ball can withstand a certain supporting force to ensure the sealing performance of the nozzle. When a fire occurs, the temperature of the organic solution rises and expands until the glass body breaks, and the ball seat seal loses support and is washed away by the water flow, thereby starting to spray water to extinguish the fire. Since the fire sprinkler nozzle is a fire-fighting equipment, it is related to the problem of emergency fire extinguishing at critical times, so the fire sprinkler nozzle needs to be regularly inspected, the nozzle surface should be cleaned, especially the temperature-sensitive element part, light dust can be blown off with air or wiped with a soft cloth, and the nozzles containing oil and dirt should be replaced in batches and cleaned centrally to make the fire sprinkler nozzle more sensitive. However, since the fire sprinkler nozzle is inconvenient to install, it is usually threadedly connected to the mounting plate, and the fire sprinkler nozzle needs to be disassembled and installed for regular inspection and maintenance, which is very troublesome, so the existing fire sprinkler nozzle needs to be improved. Utility Model Content

[0003] The utility model provides a fire sprinkler head to solve the problem of troublesome disassembly and assembly of the fire sprinkler head in the prior art.

[0004] In order to solve the above problems, the utility model provides a fire sprinkler nozzle, the fire sprinkler nozzle comprises a nozzle body and a positioning and mounting structure, the positioning and mounting structure is fixedly arranged under the mounting plate, the nozzle body is connected to the fire water pipe installed on the mounting plate, the positioning and mounting structure comprises a slide groove and a notch groove located on one side in the radial direction of the slide groove, the position of the notch groove in the circumferential direction of the slide groove is adjustable, the nozzle body comprises a nozzle assembly and a sprinkler assembly connected to each other, one end of the nozzle assembly is pluggable and inserted in the slide groove and has a limiting end extending along the radial direction of the slide groove, the fire sprinkler nozzle has a connected state and a detachable state, when the fire sprinkler nozzle is in the connected state, the position of the limiting end in the installation direction of the nozzle body is located between the mounting plate and the notch groove, and the positions of the notch groove and the limiting end in the circumferential direction of the slide groove are staggered; when the fire sprinkler nozzle is in the detachable state, the notch groove is rotated to a position directly opposite to the limiting end, and the limiting end can slide through the notch groove.

[0005] Furthermore, the positioning and mounting structure includes a mounting block and a limiting ring rotatably arranged on the mounting block, the mounting block has a slide groove, the notch groove is located on the limiting ring, the slide groove includes an insertion groove and an open groove penetrating one side of the mounting block along the radial and axial directions of the insertion groove, and the nozzle assembly has an end with a limiting end which can be slidably inserted into the insertion groove, and the limiting end can be slidably inserted into the opening groove.

[0006] Furthermore, the mounting block is a cylindrical structure, and the limit ring can be rotatably mounted on the outer circumference of the mounting block. The nozzle assembly includes a nozzle body and a fixed block arranged on one side of the nozzle body. The nozzle body is used to connect with the fire water pipe. The nozzle body can be pluggably arranged in the mounting block and limited by the inner wall of the mounting block. The fixed block can be slidably arranged in the opening groove and limited by the inner side wall of the opening groove. In the radial direction of the mounting block, the extension length of the fixed block is greater than the extension length of the opening groove, and the part of the fixed block protruding from the opening groove forms a limit end.

[0007] Furthermore, the position of the limiting ring along the axial direction of the mounting block is adjustable to clamp or loosen the limiting end when the fire sprinkler head is in a connected state.

[0008] Furthermore, the limiting ring has an internal thread, the mounting block has an external thread, the limiting ring and the mounting block are threadedly connected, and when the fire sprinkler head is in a connected state, the limiting end is clamped between the mounting plate and the limiting ring.

[0009] Furthermore, the sprinkler assembly includes a fixed frame, a temperature-sensitive glass ball and a splash plate. The two ends of the fixed frame are respectively connected to the nozzle assembly and the splash plate. The temperature-sensitive glass ball is arranged in the fixed frame and filled with an organic solution. The nozzle assembly has a jet outlet blocked by the temperature-sensitive glass ball. When the temperature-sensitive glass ball is broken by heat, the jet outlet opens and supplies liquid to the splash plate.

[0010] Furthermore, the sprinkler assembly also includes a rotation limiter rotatably inserted into the fixed frame, the rotation limiter protrudes from the bottom of the fixed frame and is fixedly connected to the splash plate, so that the splash plate can rotate relative to the fixed frame.

[0011] Furthermore, the bottom of the fixed frame has a rotating groove and an annular limiting groove arranged on the inner wall of the rotating groove. The rotating limiting part includes a limiting block and a rotating plate arranged in the circumferential direction of the limiting block. The limiting block can be rotatably inserted into the rotating groove and limitedly cooperate with the inner wall of the rotating groove. The rotating plate is inserted into the annular limiting groove and can be slidably rotated along the extension direction of the annular limiting groove.

[0012] Furthermore, the water splash plate is a bowl-shaped plate with an opening facing the fixed frame, and the water splash plate has a plurality of water splash protrusions in the circumferential direction.

[0013] Furthermore, the deflector plate has a plurality of penetrating watering holes.

[0014] The technical solution of the utility model is applied to provide a fire sprinkler nozzle, including a nozzle body and a positioning and mounting structure, the positioning and mounting structure is fixedly arranged under the mounting plate, the nozzle body is connected to the fire water pipe installed on the mounting plate, the positioning and mounting structure has a slide groove and a notch groove located on one side of the slide groove radially, the position of the notch groove in the circumferential direction of the slide groove is adjustable, the nozzle body includes a nozzle assembly and a sprinkler assembly connected to each other, one end of the nozzle assembly is pluggable and inserted into the slide groove and has a limit end extending along the radial direction of the slide groove, the fire sprinkler nozzle has a connected state and a detachable state, when the fire sprinkler nozzle is in the connected state, the position of the limit end in the installation direction of the nozzle body is located between the mounting plate and the notch groove, and the positions of the notch groove and the limit end in the circumferential direction of the slide groove are staggered; when the fire sprinkler nozzle is in the detachable state, the notch groove is rotated to a position opposite to the limit end, and the limit end can slide through the notch groove.

[0015] With this solution, when disassembling and assembling the nozzle body, the operator only needs to rotate the notch to a position directly opposite to the limit end to achieve the insertion and removal of the nozzle body. Furthermore, after the nozzle body is inserted into the positioning and installation structure, the operator can rotate the notch to offset the position of the limit end in the circumferential direction to achieve the support of the limit end of the nozzle body by the positioning and installation structure, thereby completing the installation of the nozzle body. This arrangement avoids the situation in the prior art where the nozzle body is directly threadedly connected to the mounting plate, which makes disassembly and assembly difficult, thereby improving the disassembly and assembly efficiency of the fire sprinkler nozzle and reducing the difficulty of disassembly and assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings constituting part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0017] Figure 1 The structure diagram of the fire sprinkler provided by the embodiment of the utility model is shown;

[0018] Figure 2 Shows Figure 2 Shows Figure 1 A cross-sectional view of

[0019] Figure 3 Shows Figure 1 Bottom view of

[0020] Figure 4 Shows Figure 1 A top view of the middle nozzle body and the positioning and mounting structure;

[0021] Figure 5 Shows Figure 2 Magnified view of selected location in .

[0022] The above drawings include the following reference numerals:

[0023] 10. Nozzle body; 101. Limiting end; 102. Rotating groove; 103. Annular limiting groove; 11. Nozzle body; 12. Fixing block; 13. Fixing frame; 14. Temperature-sensitive glass ball; 15. Splashing plate; 151. Sprinkling hole; 16. Rotating limiting piece; 161. Limiting block; 162. Rotating plate;

[0024] 20. Positioning and mounting structure; 201. Slide groove; 202. Notch groove; 2011. Plug-in groove; 2012. Open groove; 21. Mounting block; 22. Limiting ring;

[0025] 30. Install the plate. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means a limitation on the utility model and its application or use. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0027] like Figures 1 to 5 As shown, an embodiment of the utility model provides a fire sprinkler, which includes a sprinkler body 10 and a positioning and mounting structure 20, wherein the positioning and mounting structure 20 is fixedly arranged below a mounting plate 30, the sprinkler body 10 is connected to a fire water pipe mounted on the mounting plate 30, the positioning and mounting structure 20 has a slide groove 201 and a notch groove 202 located on one side of the slide groove 201 in a radial direction, the notch groove 202 is adjustable in the circumferential direction of the slide groove 201, the sprinkler body 10 includes a sprinkler assembly and a sprinkler assembly connected to each other, and one end of the sprinkler assembly can be inserted and removed. The fire sprinkler head is arranged in the slide groove 201 and has a limit end 101 extending radially along the slide groove 201. The fire sprinkler head has a connected state and a detachable state. When the fire sprinkler head is in the connected state, the position of the limit end 101 in the installation direction of the sprinkler body 10 is located between the mounting plate 30 and the notch groove 202, and the notch groove 202 and the limit end 101 are staggered in the circumferential direction of the slide groove 201; when the fire sprinkler head is in the detachable state, the notch groove 202 rotates to a position opposite to the limit end 101, and the limit end 101 can slide through the notch groove 202.

[0028] In this embodiment, when disassembling and assembling the nozzle body 10, the operator only needs to rotate the notch groove 202 to a position directly opposite to the limiting end 101 to achieve the insertion and removal of the nozzle body 10. Furthermore, after the nozzle body 10 is inserted into the positioning and installation structure 20, the operator can realize the support of the limiting end 101 of the nozzle body 10 by the positioning and installation structure 20 by rotating the notch groove 202 so that it is offset from the limiting end 101 in the circumferential direction, thereby completing the installation of the nozzle body 10. This arrangement avoids the situation in the prior art where the nozzle body 10 is directly threadedly connected to the mounting plate, which makes disassembly and assembly difficult, thereby improving the disassembly and assembly efficiency of the fire sprinkler nozzle and reducing the difficulty of disassembly and assembly.

[0029] like Figure 1 , Figure 2 and Figure 4 As shown, the positioning and mounting structure 20 includes a mounting block 21 and a limiting ring 22 rotatably arranged on the mounting block 21, the mounting block 21 has a slide groove 201, and the notch groove 202 is located on the limiting ring 22. The slide groove 201 includes an insertion groove 2011 and an open groove 2012 that penetrates one side of the mounting block 21 along the radial direction and axial direction of the insertion groove 2011. One end of the nozzle assembly having the limiting end 101 can be slidably arranged in the insertion groove 2011, and the limiting end 101 can be slidably arranged in the open groove 2012. This arrangement facilitates the arrangement of the slide groove 201 and the slide groove 201 to accommodate and guide one end of the nozzle assembly having the limiting end 101.

[0030] Specifically, the mounting block 21 is a cylindrical structure, and the limiting ring 22 can be rotatably mounted on the outer periphery of the mounting block 21. The nozzle assembly includes a nozzle body 11 and a fixed block 12 arranged on one side of the nozzle body 11. The nozzle body 11 is used to connect with the fire water pipe. The nozzle body 11 can be pluggably arranged in the mounting block 21 and is limited by the inner wall of the mounting block 21. The fixed block 12 can be slidably arranged in the opening groove 2012 and is limited by the inner side wall of the opening groove 2012. In the radial direction of the mounting block 21, the extension length of the fixed block 12 is greater than the extension length of the opening groove 2012, and the part of the fixed block 12 protruding from the opening groove 2012 forms a limiting end 101.

[0031] In this embodiment, the mounting block 21 is a cylindrical structure, which is convenient for the installation and rotation of the limiting ring 22. When disassembling and assembling the nozzle body 10, taking installation as an example, the operator rotates the limiting ring 22 to align the notch groove 202 with the opening groove 2012, and then inserts the top of the nozzle body 11 into the plug-in groove 2011. As the nozzle body 11 is installed, the fixing block 12 will also penetrate into the opening groove 2012. Through the limiting cooperation between the nozzle body 11 and the plug-in groove 2011 and the limiting cooperation between the fixing block 12 and the opening groove 2012, the nozzle body 10 can be guided for plugging and unplugging while avoiding the problem of the nozzle body 10 being inserted into the nozzle body 10. In order to prevent the nozzle body 10 from rotating relative to the positioning installation structure 20 during the plugging and unplugging process, the reliability of the plugging and unplugging installation of the nozzle body 10 is ensured. During the rising process of the fixed block 12 along the opening groove 2012, it will pass through the notched groove 202 and move to the top of the limiting ring 22. Then the operator rotates the limiting ring 22 to make the notched groove 202 and the opening groove 2012 staggered, so as to stop the fixed block 12 between the bottom surface of the mounting plate 30 and the top surface of the limiting ring 22, and complete the insertion and installation of the nozzle body 10. Similarly, the disassembly principle of the nozzle body 10 is the same as above. With this arrangement, the disassembly and installation of the nozzle body 10 are realized through plug-in and rotation support, avoiding the difficult and inefficient disassembly and installation when the nozzle body 10 is directly threadedly connected to the mounting plate 30 in the prior art. Furthermore, in the radial direction of the mounting block 21 , the extension length of the fixed block 12 is greater than the extension length of the opening groove 2012 , so as to ensure that the limiting ring 22 and the fixed block 12 partially overlap in the vertical direction, thereby ensuring the stopping and supporting effect of the limiting ring 22 on the fixed block 12 .

[0032] Furthermore, the position of the limiting ring 22 along the axial direction of the mounting block 21 is adjustable to clamp or loosen the limiting end 101 when the fire sprinkler is in a connected state. This arrangement realizes the compression installation of the limiting ring 22 on the fixing block 12, ensuring the reliability and stability of the installation of the sprinkler body 10.

[0033] Preferably, the limiting ring 22 has an internal thread, the mounting block 21 has an external thread, the limiting ring 22 and the mounting block 21 are threadedly connected, and when the fire sprinkler is in a connected state, the limiting end 101 is clamped between the mounting plate 30 and the limiting ring 22. In this way, the operator can achieve the rotation adjustment of the circumferential position of the notch groove 202 and the axial position adjustment of the limiting ring 22 as a whole by rotating the limiting ring 22, which is conducive to the installation and adjustment of the limiting ring 22, and at the same time avoids the situation where the limiting ring 22 will fall off from the mounting block 21.

[0034] like Figure 1 and Figure 2As shown, the sprinkler assembly includes a fixed frame 13, a temperature-sensitive glass ball 14 and a splash plate 15. The two ends of the fixed frame 13 are respectively connected to the nozzle assembly and the splash plate 15. The temperature-sensitive glass ball 14 is arranged in the fixed frame 13 and filled with an organic solution. The nozzle assembly has a jet port blocked by the temperature-sensitive glass ball 14. When the temperature-sensitive glass ball 14 is broken by heat, the jet port opens and supplies liquid to the splash plate 15.

[0035] In this embodiment, the jet outlet is located at the lower end of the nozzle body 11, and a sealing member for sealing the jet outlet is provided at the jet outlet. The temperature-sensitive glass ball 14 is arranged in the fixed frame 13 and supports the sealing member. The water flow in the fire-fighting pipeline enters the nozzle body 11 and is blocked by the sealing member. The temperature-sensitive glass ball 14 is filled with organic solutions with different expansion coefficients. After thermal expansion at different temperatures, the temperature-sensitive glass ball 14 will break, the sealing member will lose support and open the jet outlet, allowing the water flow to rush to the splash plate 15, and then the splash plate 15 guides the water flow to achieve spraying of the area below the fire sprinkler nozzle.

[0036] like Figure 2 and Figure 5 As shown, the sprinkler assembly further includes a rotation stopper 16 rotatably inserted into the fixed frame 13, the rotation stopper 16 protrudes from the bottom of the fixed frame 13 and is fixedly connected to the water splash plate 15, so that the water splash plate 15 can rotate relative to the fixed frame 13. This arrangement enables the water splash plate 15 to rotate under the impact of the water flow, and the rotating water splash plate 15 can make the water spray more uniformly, thereby improving the fire fighting effect of the fire sprinkler head.

[0037] Specifically, the bottom of the fixed frame 13 has a rotating groove 102 and an annular limit groove 103 arranged on the inner wall of the rotating groove 102. The rotating limit member 16 includes a limit block 161 and a rotating plate 162 arranged in the circumferential direction of the limit block 161. The limit block 161 is rotatably inserted into the rotating groove 102 and cooperates with the inner wall of the rotating groove 102 to limit the rotation. The rotating plate 162 is inserted into the annular limit groove 103 and can be slidably rotated along the extension direction of the annular limit groove 103.

[0038] In this embodiment, the limit block 161 is fixedly arranged at the center position of the splash plate 15. The limit block 161 and the rotation groove 102 cooperate to facilitate the positioning and installation of the splash plate 15 and the fixed frame 13, and at the same time limit the relative position of the two in the horizontal direction. The annular limit groove 103 is arranged on the inner wall of the rotation groove 102 and is spaced from the opening of the rotation groove 102. The rotation plate 162 cooperates with the rotation groove 102 to further ensure the positioning and installation effect of the splash plate 15 and the fixed frame 13, and the relative position of the splash plate 15 and the fixed frame 13 in the vertical direction is limited. In this way, the relative position of the splash plate 15 and the fixed frame 13 is limited by the rotation limiter 16, and the rotatable connection between the splash plate 15 and the fixed frame 13 is achieved.

[0039] It should be noted that the number and shape of the rotating plates 162 can be determined according to actual conditions. For example, the rotating plate 162 can be an annular plate whose size and shape are compatible with the rotating plate 162; or in other embodiments, the rotating plate 162 is a long strip and there are multiple of them. The multiple long strips are distributed at intervals along the circumference of the limit block 161 and are limited and matched with different circumferential positions of the annular limit groove 103.

[0040] like Figures 1 to 3 As shown, the water splash plate 15 is a bowl-shaped plate with an opening toward the fixed frame 13, and the water splash plate 15 has multiple water splashing protrusions on the circumference. This arrangement enables the water sprayed by the fire sprinkler head to spray upward, and at the same time is conducive to expanding the coverage of the sprayed water and improving the spray fire fighting effect of the fire sprinkler head. It can be understood that the water splash plate 15 of this type of fire sprinkler head is an upward spraying water splash plate, which can enable the sprayed water to spray upward, downward or sideways in multiple directions. The type and structure of the water splash plate 15 can be replaced according to the actual application environment. For example, in other embodiments not shown in the figure, the water splash plate 15 can be replaced with a bowl-shaped downward spraying water splash plate with an opening facing downward.

[0041] like Figures 1 to 3 as well as Figure 5 As shown, the water splash plate 15 has a plurality of water sprinkling holes 151 extending therethrough. In the present embodiment, the water splash plate 15 has two circles of water sprinkling hole groups arranged around the center of the water splash plate 15, each of which includes 12 water sprinkling holes 151, and the extension direction of any water sprinkling hole 151 can be the radial direction of the bowl-shaped plate, that is, the extension direction of the plurality of water sprinkling holes 151 will be appropriately tilted and extended according to their setting positions, so as to ensure the flow direction of the water flowing through the water sprinkling holes 151 and the coverage effect on the area below. This arrangement enables the dead angle area below the water splash plate 15 to be sprayed with water, thereby ensuring the fire sprinkler effect of the fire sprinkler head. It should be noted that the number, setting position, tilt, etc. of the water sprinkling holes 151 can be set according to actual conditions, and no specific limitation is made here.

[0042] In summary, the utility model provides a fire sprinkler nozzle, and its disassembly and assembly principle and working principle are as follows:

[0043] When using the fire sprinkler with the positioning and mounting structure 20, when disassembling and assembling the sprinkler body 10, taking installation as an example, the operator rotates the limit ring 22 to align the notch groove 202 and the open groove 2012. At the same time, in this process, the limit ring 22 is threadedly connected with the fixed mounting block 21 to make the limit ring 22 move along the axial direction of the mounting block 21, so that the top surface of the limit ring 22 and the bottom surface of the mounting plate 30 avoid a height for placing the fixed block 12, and then the top of the sprinkler body 11 is inserted into the plug-in groove 2011. As the sprinkler body 11 is installed, the fixed block 12 will also penetrate into the open groove 2012. Through the limiting cooperation between the sprinkler body 11 and the plug-in groove 2011 and the limiting cooperation between the fixed block 12 and the open groove 2012, the sprinkler body 11 is fixed. While guiding the plugging and unplugging installation of the nozzle main body 10, it prevents the nozzle main body 10 from rotating relative to the positioning and mounting structure 20 during the plugging and unplugging process, thereby ensuring the reliability of the plugging and unplugging installation of the nozzle main body 10. The fixed block 12 passes through the notch groove 202 and moves to the top of the limiting ring 22 during the rising process along the opening groove 2012, until the top of the nozzle body 11 abuts against the bottom surface of the mounting plate 30. Thereafter, the operator rotates the limiting ring 22 to make the limiting ring 22 rise, so that the notch groove 202 is staggered from the opening groove 2012, and at the same time, the bottom of the fixed block 12 is pressed from bottom to top through the limiting ring 22, so as to press the nozzle main body 10 into the positioning and mounting structure 20, thereby completing the installation of the nozzle main body 10. Similarly, the disassembly principle of the nozzle main body 10 is the same as above. The water flow in the fire-fighting pipeline enters the nozzle body 11, and the temperature-sensitive glass ball 14 is filled with organic solutions with different expansion coefficients. When a fire occurs, the temperature-sensitive glass ball 14 will break after thermal expansion at different temperatures, and the sealing of the jet outlet will fail. The jet outlet will open, and the water flow will spray to the splash plate 15. The splash plate 15 guides the water flow to achieve upward, downward and sideways spraying. In this process, since the splash plate 15 is connected to the fixed frame 13 by the rotation limiter 16, the impact force generated by the water flow will drive the splash plate 15 to rotate. The rotated splash plate 15 can make the water spray more evenly, and the lower water spraying hole 151 on the splash plate 15 can spray water at the dead corners under the nozzle body 11 and the splash plate 15.

[0044] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0045] Unless otherwise specifically stated, the relative arrangement, numerical expressions and numerical values ​​of the parts and steps set forth in these embodiments do not limit the scope of the utility model. At the same time, it should be understood that, for ease of description, the sizes of the various parts shown in the accompanying drawings are not drawn according to the actual proportional relationship. The technology, method and equipment known to those of ordinary skill in the relevant art may not be discussed in detail, but in appropriate cases, the technology, method and equipment should be considered as a part of the specification. In all examples shown and discussed here, any specific value should be interpreted as being merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, and therefore, once a certain item is defined in an accompanying drawing, it does not need to be further discussed in subsequent drawings.

[0046] In the description of the present utility model, it needs to be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present utility model and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction, and therefore cannot be understood as limiting the scope of protection of the present utility model; the directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0047] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0048] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. If not otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of the utility model.

[0049] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A fire sprinkler, characterized in that: The fire sprinkler head comprises a sprinkler head body (10) and a positioning and mounting structure (20), wherein the positioning and mounting structure (20) is fixedly arranged below a mounting plate (30), the sprinkler head body (10) is connected to a fire water pipe mounted on the mounting plate (30), the positioning and mounting structure (20) comprises a slide groove (201) and a notch groove (202) located on one side of the slide groove (201) in a radial direction, the notch groove (202) being positionally adjustable in a circumferential direction of the slide groove (201), the sprinkler head body (10) comprises a sprinkler head assembly and a sprinkler head assembly connected to each other, one end of the sprinkler head assembly being insertably arranged in the slide groove (201) and having a plurality of nozzles extending along the slide groove (201). The fire sprinkler head has a limit end (101) extending radially from the guide slot (201), and the fire sprinkler head has a connected state and a detachable state. When the fire sprinkler head is in the connected state, the position of the limit end (101) in the installation direction of the sprinkler head body (10) is located between the installation plate (30) and the notch groove (202), and the positions of the notch groove (202) and the limit end (101) in the circumferential direction of the slide slot (201) are staggered; when the fire sprinkler head is in the detachable state, the notch groove (202) rotates to a position directly opposite to the limit end (101), and the limit end (101) can slide through the notch groove (202).

2. The fire sprinkler according to claim 1, characterized in that: The positioning and mounting structure (20) comprises a mounting block (21) and a limiting ring (22) rotatably arranged on the mounting block (21); the mounting block (21) has the slide groove (201); the notch groove (202) is located on the limiting ring (22); the slide groove (201) comprises an insertion groove (2011) and an open groove (2012) penetrating one side of the mounting block (21) along the radial direction and the axial direction of the insertion groove (2011); the nozzle assembly has one end of the limiting end (101) slidably inserted into the insertion groove (2011); and the limiting end (101) is slidably inserted into the open groove (2012).

3. The fire sprinkler according to claim 2, characterized in that: The mounting block (21) is a cylindrical structure. The limiting ring (22) is rotatably sleeved on the outer periphery of the mounting block (21). The nozzle assembly comprises a nozzle body (11) and a fixed block (12) arranged on one side of the nozzle body (11). The nozzle body (11) is used to communicate with the fire water pipe. The nozzle body (11) is pluggably arranged in the mounting block (21) and is limitedly matched with the inner wall of the mounting block (21). The fixed block (12) is slidably arranged in the opening groove (2012) and is limitedly matched with the inner side wall of the opening groove (2012). In the radial direction of the mounting block (21), the extension length of the fixed block (12) is greater than the extension length of the opening groove (2012). The portion of the fixed block (12) protruding from the opening groove (2012) forms the limiting end (101).

4. The fire sprinkler according to claim 2, characterized in that: The position of the limiting ring (22) along the axial direction of the mounting block (21) is adjustable so as to clamp or loosen the limiting end (101) when the fire sprinkler head is in the connected state.

5. The fire sprinkler according to claim 4, characterized in that: The limiting ring (22) has an internal thread, the mounting block (21) has an external thread, the limiting ring (22) and the mounting block (21) are threadedly connected, and when the fire sprinkler head is in the connected state, the limiting end (101) is clamped between the mounting plate (30) and the limiting ring (22).

6. The fire sprinkler according to claim 1, characterized in that: The sprinkler assembly comprises a fixed frame (13), a temperature-sensitive glass ball (14) and a splash plate (15); the two ends of the fixed frame (13) are respectively connected to the nozzle assembly and the splash plate (15); the temperature-sensitive glass ball (14) is arranged in the fixed frame (13) and filled with an organic solution; the nozzle assembly has a jet port blocked by the temperature-sensitive glass ball (14); when the temperature-sensitive glass ball (14) is broken by heat, the jet port opens and supplies liquid to the splash plate (15).

7. The fire sprinkler according to claim 6, characterized in that: The sprinkler assembly further comprises a rotation limiter (16) rotatably inserted into the fixed frame (13); the rotation limiter (16) protrudes from the bottom of the fixed frame (13) and is fixedly connected to the water splash plate (15), so that the water splash plate (15) can rotate relative to the fixed frame (13).

8. The fire sprinkler according to claim 7, characterized in that: The bottom of the fixed frame (13) is provided with a rotation groove (102) and an annular limiting groove (103) arranged on the inner wall of the rotation groove (102); the rotation limiting member (16) comprises a limiting block (161) and a rotating plate (162) arranged in the circumferential direction of the limiting block (161); the limiting block (161) is rotatably inserted into the rotation groove (102) and is limitedly engaged with the inner wall of the rotation groove (102); the rotating plate (162) is inserted into the annular limiting groove (103) and is slidably rotated along the extension direction of the annular limiting groove (103).

9. The fire sprinkler according to claim 6, characterized in that: The water splash plate (15) is a bowl-shaped plate with an opening facing the fixed frame (13), and the water splash plate (15) has a plurality of water splash protrusions in the circumferential direction.

10. The fire sprinkler according to claim 6, characterized in that: The water splash plate (15) has a plurality of penetrating water spray holes (151).

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