Triggering module and fire sprinkler

Abstract

The utility model provides a trigger module and a fire sprinkler, and belongs to the technical field of fire extinguishing equipment, the trigger module comprises: two trigger blocks, the two trigger blocks are arranged at an interval and construct the outer contour of the trigger module; the triggering piece is transversely arranged between the two triggering blocks so as to limit the two triggering blocks to be relatively retracted; the limiting piece is arranged on the two trigger blocks, and when the limiting piece is fixed on the trigger blocks, the limiting piece has an inward shrinkage trend, so that the two trigger blocks have a shrinkage trend; the technical effect that the pressure bearing capacity of the fire sprinkler is enhanced is achieved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of fire-fighting equipment, in particular to a trigger module and a fire-fighting nozzle. BACKGROUND

[0002] The structure of the conventional fire-fighting nozzle is that the glass ball used for triggering is vertically arranged, which results in a long overall structure size, and low aesthetic property when installed on the ceiling.

[0003] Of course, the glass ball is not only vertically arranged, but also horizontally arranged by some manufacturers, but the structure of the horizontally arranged glass ball is usually a flip arm + glass ball structure, and the state of the flip arm is limited by the glass ball. When the glass ball breaks due to temperature, the flip arm is flipped to make the fire-fighting nozzle work. The pressure-bearing capacity of the glass ball in this structure is small, and this kind of structure is rarely used in large-diameter fire-fighting nozzles.

[0004] Therefore, the technical problem of the prior art is how to enhance the pressure-bearing capacity of the fire-fighting nozzle. SUMMARY

[0005] The present application provides a trigger module and a fire-fighting nozzle, which solve the technical problem of how to enhance the pressure-bearing capacity of the fire-fighting nozzle in the prior art, and achieve the technical effect of enhancing the pressure-bearing capacity of the fire-fighting nozzle.

[0006] The present application provides a trigger module, which comprises: two trigger blocks, the two trigger blocks are arranged in a spaced manner and construct the outer contour of the trigger module; a trigger piece, the trigger piece is horizontally arranged between the two trigger blocks to limit the relative contraction of the two trigger blocks; and one or more limit pieces, the limit pieces are arranged on the two trigger blocks, and at least one limit piece has a tendency to contract inward when fixed on the trigger block, so that the two trigger blocks have a tendency to contract.

[0007] Preferably, the outer side surface of the trigger block is provided with threads; or the outer side surface of the trigger block is provided with an outward convex or inward recessed abutting part, and the trigger module is limited in position by the abutting part under the external force.

[0008] Preferably, the limit pieces comprise a first limit piece and a second limit piece, at least one of the first limit piece and the second limit piece has an elastic deformation capacity, so that the trigger block has a tendency to contract inward; the first limit piece and the second limit piece are arranged in a spaced manner, and the trigger piece is located between the first limit piece and the second limit piece.

[0009] Preferably, the trigger piece is arranged at the middle part of the two trigger blocks, the first limit piece is arranged at the lower part of the two trigger blocks, and the second limit piece is arranged at the upper part of the two trigger blocks.

[0010] Preferably, the first limiting member has elastic deformation capacity, so that the trigger module is contracted; the second limiting member is arranged on the two trigger modules to limit the outward expansion of the two trigger modules.

[0011] Preferably, the limiting member further comprises a third limiting member arranged on the opposite side of the first limiting member relative to the second limiting member, so that the trigger module is kept in a stable state under the action of the first limiting member through the third limiting member and the second limiting member.

[0012] Preferably, the first limiting member is a spring with elastic deformation capacity, the spring is clamped on the two trigger blocks in the state of elastic deformation, and the second limiting member and the third limiting member are a ring, and the inner ring of the ring is sleeved on the two trigger blocks.

[0013] Preferably, the trigger block is provided with a first connecting part relative to the first limiting member, the first limiting member has an elastic deformation wrapping cavity, and the wrapping cavity wraps at least part of the first connecting part on the two trigger blocks.

[0014] Preferably, a limiting member clamping groove is arranged on the first connecting part, and the limiting member clamping groove and the first limiting member are concave-convex type clamped.

[0015] The embodiment of the application provides a fire sprinkler, which comprises: a trigger module, the trigger module is provided with a limiting member located on the upper part of the trigger block, and the limiting member is provided with a cover clamping groove; a cover, the cover is provided with a cover clamping part protruding, the cover clamping part is detachably clamped on the cover clamping groove, so that the position of the cover is fixed.

[0016] Preferably, part of the inner wall of the limiting member is used for covering the two trigger blocks, and the cover clamping groove is arranged on the inner wall of the limiting member in a staggered manner relative to the trigger block.

[0017] Preferably, the cover clamping part is an integral whole, the cover clamping part comprises: a clamping body, the clamping body is provided with two or more than two, the clamping body and the cover clamping groove are clamped; a clamping foot, the clamping foot is fixedly connected with the cover.

[0018] The above one or more technical solutions in the embodiment of the application have at least one or more of the following technical effects:

[0019] 1、In this application, the trigger block is used to bear the pressure from the water network, and the trigger piece made of glass only needs to maintain the gap between the two trigger blocks, that is, the trigger piece does not directly bear the water network pressure; and through the optimization of the limiting piece, the limiting piece has a tendency to retract when fixed on the trigger block, so that the two trigger blocks have a tendency to retract, so that the trigger block can stably trigger and escape from the accommodating cavity of the seat body, solving the technical problem of how to enhance the pressure bearing capacity of the fire nozzle in the prior art; The technical effect of enhancing the pressure bearing capacity of the fire nozzle is achieved. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 is a front view of a fire nozzle;

[0021] Figure 2 is Figure 1 is a structure diagram of the upper part;

[0022] Figure 3 is a top view of a trigger module;

[0023] Figure 4 is a front view of another fire nozzle;

[0024] Figure 5 is a top view of a touch module and a seat body connection;

[0025] Figure 6 is a top view of another trigger module;

[0026] Figure 7 is a top view of a first limiting piece on a trigger seat;

[0027] Figure 8 is Figure 7 is another top view of the first limiting piece after deformation;

[0028] Figure 9 is a top view of a third trigger module;

[0029] Figure 10 is a front view of a fourth trigger module;

[0030] Figure 11 is a front view of a fourth trigger module;

[0031] Figure 12 is a front view of a fifth fire nozzle;

[0032] Figure 13 is a bottom view of a trigger module;

[0033] Figure 14 Structure diagram of the balance module;

[0034] Figure 15 Structure diagram of the balance module;

[0035] Figure 16 Structure diagram of the balance module; Figure 15 Structure diagram of the balance module;

[0036] Figure 17 Structure diagram of the balance module; Figure 15 Structure diagram of the balance module;

[0037] Figure 18 Structure diagram of the balance module; Figure 17 Structure diagram of the balance module;

[0038] 100, seat body; 11, base; 111, through cavity; 12, gland; 121, gland thread; 13, accommodating cavity; 14, accommodating opening; 200, plug; 300, water distribution module; 31, water distribution disc; 32, water distribution rod; 400, balance module; 41, balance plate; 42, force receiving piece; 421, adjusting part; 422, force receiving part; 500, trigger module; 51, trigger block; 511, abutting part; 512, first connecting part; 5121, limiting piece clamping groove; 513, second connecting part; 514, ball groove; 52, trigger piece; 53, limiting piece; 531, first limiting piece; 5311, clamping part of the limiting piece; 532, second limiting piece; 5321, clamping groove of the cover plate; 533, third limiting piece; 54, abutting piece; 55, ball; 600, cover plate; 61, clamping part of the cover plate; 611, clamping body; 612, clamping seat; 613, clamping foot. DETAILED DESCRIPTION

[0039] The serial numbers of components in this document, such as "first", "second", etc., are only used to distinguish the described objects, and do not have any sequence or technical meaning. Unless otherwise specified, "connection" and "coupling" in this application include direct and indirect connections (couplings). In the description of this application, it should be understood that the orientations or positional relationships indicated by the terms "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. are based on the orientations or positional relationships shown in the drawings, and are only used for the convenience of describing this application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on this application.

[0040] In the present application, unless specifically stated and limited otherwise, a first feature is "on" or "under" a second feature can mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature "over", "above" and "on top of" the second feature can mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in horizontal height than the second feature. The first feature "under", "below" and "underneath" the second feature can mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in horizontal height than the second feature.

[0041] In order to better understand the above technical solutions, the above technical solutions will be described in detail below in combination with the drawings in the specification and specific embodiments.

[0042] Reference Figure 1 , the fire sprinkler comprises a seat body 100, a plug 200, a balance module 400, a trigger module 500 and a cover plate 600, the seat body 100 is provided with a containing cavity 13 with a containing opening 14; the plug 200, the balance module 400 and the trigger module 500 are in contact in turn to form a sealing assembly in the containing cavity 13, and the cover plate 600 is connected with the trigger module 500 or the seat body 100 to shield the trigger module 500 and the seat body 100, so as to achieve an attractive appearance. The triggering principle of the fire sprinkler can be simply summarized as that the trigger module 500 is triggered by high temperature and is pulled out from the containing opening 14, so that the balance module 400 and the plug 200 lose support and are also pulled out in turn, resulting in failure of the sealing assembly, and water in the fire pipe network is sprayed outwards through the seat body 100.

[0043] The seat body 100, as the basic framework of the fire sprinkler, is used for accommodating and connecting other parts. Reference Figure 1 , the seat body 100 is divided into a base 11 and a gland 12 with a containing opening 14, and the base 11 and the gland 12 form a containing cavity 13; wherein the gland 12 and the base 11 are detachably connected, which is convenient for opening the containing cavity 13, so that the components that cannot or are inconvenient to enter the containing cavity 13 through the containing opening 14 can be conveniently placed in the containing cavity 13. Two is to realize the position adjustment of the gland 12 relative to the base 11, so that the depth of the containing cavity 13 can be adjusted. When the gland 12 is used to press the trigger module 500 or is used to threadedly connect the trigger module 500, the position of the trigger module 500 relative to the balance module 400 can be adjusted appropriately, which is beneficial to offset the size deviation during production of components, so that the assembly is more smooth.

[0044] Exemplarily, reference Figure 2The connection mode of the above-mentioned gland 12 and base 11 is threaded connection. Through the threaded connection mode, firstly, the gland 12 and the base 11 can be stably connected, and secondly, the position of the trigger module 500 in the accommodating cavity 13 can be pressed tightly by screwing in the gland 12, so that the entire fire sprinkler is in a tightly assembled state. And because the gland 12 is a complete whole, compared with the structure of setting threads on the outside of the trigger module 500 before, the threads on the gland 12 are easy to process, reducing the processing difficulty; and the structure of the integral thread is also more convenient to assemble, avoiding the situation that the threads on the two trigger blocks 51 do not connect smoothly. It can be understood that the above-mentioned threaded connection and pressing-in mode can be designed to connect the middle and lower parts or the lower part of the seat body 100 and the trigger module 500, so that the upper part or the middle and upper part of the trigger module 500 is exposed outside the accommodating cavity 13, and the trigger piece 52 is located in the part exposed outside the accommodating cavity 13, so that the trigger piece 52 can more sensitively sense the environmental problems.

[0045] Specifically, for details of the accommodating opening 14 provided on the gland 12, refer to Figure 2 and Figure 3 First, in order to make the gland 12 provided with the accommodating opening 14 normally press the trigger module 500, the accommodating opening 14 needs to meet that the projection of the accommodating opening 14 on the trigger module 500 does not completely cover the trigger module 500, in other words, the accommodating opening 14 at least has a first opening size, which is smaller than the maximum width size of the trigger module 500 in the non-triggered state projected on the accommodating opening 14. Through the first opening size, the trigger module 500 is limited in the accommodating cavity 13; that is, part of the gland 12 needs to press the trigger module 500. Second, in order to make the trigger module 500 can be pulled out from the accommodating opening 14 after triggering, the accommodating opening 14 is preferably located below the gravity direction of the trigger module 500, and the first opening size is preferably greater than the width size of the two trigger blocks 51 after shrinking, so as to facilitate pulling out.

[0046] It needs to be specially pointed out that in addition to the above-mentioned placing and limiting the trigger module 500 by constructing the gland 12, the shape of the accommodating opening 14 can also be designed to place and limit the trigger module 500, for details, refer to Figure 4 and Figure 5, the accommodation opening 14 has a first opening size in the left-right direction and a second opening size in the front-rear direction. The second opening size is greater than or equal to the maximum width dimension of the trigger module 500 in the untriggered state projected on the accommodation opening 14, so as to facilitate the placement of the trigger module 500. It can be understood that the trigger module 500 is provided with an outwardly protruding abutting portion 511 at both ends of the outer side surface, the abutting portion 511 first enters the accommodation cavity 13 from the range of the second opening size, and after the trigger module 500 is rotated by 90°, the abutting portion 511 is limited in the range of the first opening size of the accommodation opening 14. Of course, this kind of placement and rotation limited assembly structure preferably adds an elastic filler to ensure that the trigger module 500 is reliably limited in the accommodation cavity 13 after being placed.

[0047] The balance module 400 is used to evenly apply the force from the trigger module 500 to the plug 200. Referring to Figure 4 , the balance module 400 includes a balance plate 41 and a force receiving member 42, the force receiving member 42 includes a force receiving portion 422 located at the front and an adjusting portion 421 located at the rear, the force receiving portion 422 is used to abut against the plug 200, and the adjusting portion 421 is used to be adjustably connected (such as threaded connection) with the center of the balance plate 41, and the overall height of the balance module 400 is adjusted through the adjusting portion 421, so as to flexibly adjust the overall height of the plug 200, the balance module 400 and the trigger module 500.

[0048] It can be understood that, referring to Figure 14 , the force receiving portion 422 and the adjusting portion 421 are integrally formed, or the force receiving portion 422 and the adjusting portion 421 are machined as a whole; and preferably, the contact surface of the force receiving portion 422 relative to the plug 200 is an arc surface, so as to uniformly and gently abut against the plug 200.

[0049] The trigger module 500, referring to Figure 2 and Figure 4 , is arranged in the accommodation cavity 13, and directly or indirectly abuts against the plug 200 to achieve the sealing of the fire sprinkler through the abutment against the plug 200; and the trigger module 500 has two states of untriggered and triggered, referring to Figure 6 and Figure 8, relative to the trigger module 500 in the non-trigger state, the trigger module 500 in the trigger state is reduced in size or disassembled. Specifically, the trigger module 500 includes a trigger block 51, a trigger piece 52, and a limiting piece 53. The trigger block 51 is provided with two blocks, and the two trigger blocks 51 are arranged at intervals and constitute the outer contour of the trigger module 500. The trigger piece 52 is transversely arranged between the two trigger blocks 51 to limit the relative contraction of the two trigger blocks 51. The limiting piece 53 is arranged on the two trigger blocks 51, and the limiting piece 53 is provided with one or more, and at least one of the aforementioned limiting pieces 53 is fixed on the trigger block 51, which has a tendency to shrink inward, so that the two trigger blocks 51 have a tendency to contract.

[0050] Regarding the limiting mode between the trigger module 500 and the seat body 100, in addition to the threaded connection between the trigger module 500 and the seat body 100, a height-limited accommodating cavity 13 can also be constructed to limit the position of the trigger module 500. It can be understood that when the accommodating cavity 13 is constructed to limit the position of the trigger module 500, one is to resist the end face of the trigger block 51, and the other is that the outer side face of the trigger block 51 is provided with an outwardly convex or inwardly recessed abutting portion 511, which makes the trigger module 500 be limited in position by the external force brought by the seat body 100. Among them, regarding the abutting surface between the trigger module 500 and the accommodating cavity 13, the contact surface between the trigger module 500 and the accommodating cavity 13 is preferably a slope that points from the outside to the inside of the accommodating opening 14, so that when the water network pressure is transmitted to the trigger module 500 through the plug 200 and the balance module 400, a component force is generated to make the trigger module 500 contract, so that the contraction action of the trigger module 500 after triggering is more reliable and stable, and it is beneficial for the trigger block 51 to be pulled out of the accommodating opening 14.

[0051] The limiting piece 53 is used to limit the position state between the two trigger blocks 51, referring to Figure 2 and Figure 6 The limiting piece 53 includes a first limiting piece 531 and a second limiting piece 532, at least one of the first limiting piece 531 and the second limiting piece 532 has the ability to elastically deform, so that the trigger block 51 has a tendency to shrink inward. Preferably, the first limiting piece 531 and the second limiting piece 532 are arranged at intervals, and the trigger piece 52 is located between the first limiting piece 531 and the second limiting piece 532. For example, the trigger piece 52 is arranged at the middle part of the two trigger blocks 51, the first limiting piece 531 is arranged at the lower part of the two trigger blocks 51, and the second limiting piece 532 is arranged at the upper part of the two trigger blocks 51; the upper and lower limiting pieces are used to ensure that the two trigger blocks 51 where the trigger piece 52 is arranged are in a stable state, and constitute an assembly unit that can exist independently, which is convenient for later assembly into the seat body 100 in the form of the trigger module 500.

[0052] Regarding the elastic deformation ability of the limiting piece 53, the limiting piece 53 can adopt a snap spring, and the two trigger blocks 51 are clamped by the deformed snap spring, that is, the outward expansion of the two trigger blocks 51 in the complete state of the trigger module 500 can be limited, and it is also beneficial to promote the inward folding of the two trigger blocks 51 after the trigger piece 52 is broken and fails.

[0053] It should be noted that if only one limiting piece 53 has the ability to elastically deform and shrink inward, the two trigger blocks 51 will not only approach each other after the trigger module 500 is triggered, but also tilt and approach each other, so that the response speed of the trigger block 51 on one side is fast. Especially in the case where the trigger module 500 is limited by the abutting part 511 and the seat body 100, the abutting part 511 of the trigger block 51 and the seat body 100 are tilted and contacted to realize the flip-out, so that the flip-out is more stable. In addition, the structure design of the single-sided limiting piece 53 that can shrink inward is beneficial to reduce the stress of the trigger piece 52 in the untriggered state. The reason is that the limiting piece 53 with elastic deformation ability will promote the inward folding of the two trigger blocks 51 under the action of the inward shrinking force, and the folding of the trigger block 51 will bring pressure to the trigger piece 52, causing the trigger piece 52 to bear the pressure of compression. If both limiting pieces 53 are designed to have the ability to elastically deform and shrink inward, the pressure bearing of the trigger piece 52 will be further increased, affecting the working stability of the trigger module 500 and the assembly of the trigger module 500.

[0054] Based on the foregoing description of the limiting piece 53, for example, the first limiting piece 531 is designed to have elastic deformation ability, so that the trigger module 500 is folded; the second limiting piece 532 is arranged on the two trigger modules 500 to limit the outward expansion of the two trigger modules 500; in other words, the first limiting piece 531 is a snap spring with elastic deformation ability, and the snap spring is clamped on the two trigger blocks 51 in the state of elastic deformation; the second limiting piece 532 is a snap ring, and the inner ring of the snap ring is sleeved on the two trigger blocks 51.

[0055] It can be understood that, referring to Figure 10 and Figure 11On the basis of the foregoing, the stability of the device can be further improved by adding a third limiting member 533 to ensure that the trigger module does not deform due to the inward force of the first limiting member 531 in the normal state, so that the trigger module remains in a stable state in the normal state. Specifically, the third limiting member 533 and the second limiting member 532 are used to limit the outward expansion of the trigger module 500, and the first limiting member 531 with elastic inward shrinking capability is located between the third limiting member 533 and the second limiting member 532; or in the case of limiting the trigger module 500 by the third limiting member 533 and the second limiting member 532, the first limiting member 531 with elastic inward shrinking capability can also not be arranged between the third limiting member 533 and the second limiting member 532, but arranged outside the third limiting member 533 and the second limiting member 532.

[0056] As for how the first limiting member 531 is fixed on the trigger block 51, one type is as shown in Figure 7 , the trigger block 51 is provided with a first connecting part 512 relative to the first limiting member 531, and the first limiting member 531 has an elastic deformed wrapping cavity that wraps at least part of the first connecting part on the two trigger blocks 51. Another type is as shown in Figure 9 , the first connecting part 512 is provided with a limiting member clamping groove 5121, and the limiting member 53 clamping part of the first limiting member 531 and the limiting member clamping groove 5121 are recessed and protruding type clamping; wherein the limiting member 53 clamping part can be outward protruding or inward recessed. It can be understood that the above two structures can be used together.

[0057] It should be further emphasized that if the first limiting member 531 is designed only for limiting, and the second limiting member 532 has the ability to deform and shrink inwardly, it is also feasible; in other words, the first limiting member 531 can be designed as a clasp, and the second limiting member 532 can be designed as a clasp spring or a traditional elastic spring.

[0058] On the other hand, in addition to being designed as multiple limiting members 53 that prevent outward expansion, the limiting member 53 can also be designed as one limiting member 53 that prevents outward expansion and one limiting member 53 that prevents inward shrinking; specifically, the limiting member 53 that prevents outward expansion limits the middle part of the trigger block 51, and the trigger member 52 and the limiting member 53 that prevents inward shrinking are arranged on the upper and lower parts of the trigger block 51 respectively. In addition, it is also feasible to use only one limiting member 53 that prevents outward expansion to form a mechanical balance structure with the limiting member 53 that prevents inward shrinking. Specifically, the trigger member 52 is arranged between the two trigger blocks 51, and the limiting member 53 that prevents outward expansion is arranged outside the trigger member 52, and the pressure of the limiting member 53 on the trigger block 51 and the resistance of the trigger member 52 on the trigger block 51 are on the same action line.

[0059] Trigger block 51, used to build the outline base of trigger module 500, and has a base structure connected by limiting piece 53. Trigger block 51 is designed with at least two blocks of main body base outline symmetry, and the two trigger blocks 51 are combined into a whole through limiting piece 53 and trigger piece 52. In order to facilitate the trigger block 51 to be pulled out after triggering, the outside of the trigger block 51 needs to be designed to meet the fixing requirements between the seat body 100, while the inside of the trigger block 51 is preferably hollowed out or left empty under the condition of meeting the overall structural strength, so that the overall size of the two trigger blocks 51 is small after shrinking, and the pulling out is simple.

[0060] Need to be specially pointed out is that, with reference to Figure 12 , the trigger module 500 needs to resist the balance plate 41 of the balance module 400 in the structural design, and there is a friction force between the two, and the tighter the position limit of the trigger module 500, the greater the friction force; in order to avoid the influence of the foregoing friction force on the shrinking action of the trigger module 500 after triggering, with reference to Figure 13 , the bottom surface of the trigger block 51 is provided with one or more ball 55 grooves 514, the ball 55 is movably arranged in the ball 55 groove 514, and the ball 55 protrudes from the bottom surface of the trigger block 51, so that the ball 55 moves in the ball 55 groove 514 when subjected to external force. In this way, the ball 55 is used to resist the balance plate 41, and after the trigger module 500 is triggered, the trigger block 51 moves smoothly by rolling and sliding relative to the balance plate 41, rather than the bottom surface of the trigger block 51 moving directly relative to the balance plate 41, the frictional resistance to be overcome is reduced, and the smooth triggering of the trigger module 500 is ensured. It can be understood that the direction of the ball 55 groove 514 from the outside to the inside is consistent or basically consistent with the movement direction of the trigger block 51, so that the movement trend of the trigger block 51 and the rolling and sliding trend of the ball 55 are basically consistent, the movement resistance of the ball 55 is small, and the response of the trigger module 500 is fast.

[0061] Cover plate 600, used to cover the exposed surface of the bottom of the spray head, so that the fire sprinkler is more beautiful after installation. The traditional installation method of cover plate 600 is to connect with seat body 100 or trigger module 500 through soldering or gluing, and the cover plate 600 falls off when the ambient temperature of the fire sprinkler is high. In order to simplify the assembly steps, and also to make the cover plate 600 more convenient to disassemble. The cover plate 600 is provided with a cover plate clamping part 61 protruding outward, which is detachably clamped on the trigger module 500. Based on the feature that the trigger module 500 will be pulled out after triggering, the cover plate 600 will also be pulled out, solving the problem that the cover plate 600 clamped in this way cannot be pulled out.

[0062] Regarding the way of clamping between the cover plate 600 and the trigger module 500, the cover plate 600 can be clamped with the trigger block 51, or the cover plate 600 and the limiting piece 53 can be clamped, or the cover plate 600 and the trigger piece 52 can be clamped. Among them, the cover plate 600 and the second limiting piece 532 located on the upper part of the trigger block 51 and protruding from the accommodating cavity 13 are preferably clamped, one is that the position of the second limiting piece 532 is convenient for clamping, and the other is that the second limiting piece 532 does not affect the contraction of the two trigger blocks 51, that is, the second limiting piece 532 clamped with the cover plate 600 will not affect the contraction of the trigger block 51. Specifically, refer to Figure 15 and Figure 16 The second limiting piece 532 is provided with a cover plate clamping groove 5321, which can be clamped with the cover plate clamping part 61; and since part of the inner wall of the second limiting piece 532 needs to be covered to limit the two trigger blocks 51, the cover plate clamping groove 5321 needs to be arranged on the spare inner wall of the second limiting piece 532, that is, the cover plate clamping groove 5321 is arranged on the inner wall of the second limiting piece 532 in a staggered manner relative to the trigger block 51.

[0063] It can be understood that if the cover plate clamping part 61 is designed as one, the connection firmness between the cover plate 600 and the trigger module 500 is low. If the cover plate clamping part 61 is designed as two or more, the positioning accuracy between the plurality of cover plate clamping parts 61 needs to be considered. Refer to Figure 17 and Figure 18 The cover plate clamping part 61 is designed as a clamping seat 612, a clamping body 611 and a clamping foot 613; the clamping body 611 is used to cooperate with the cover plate clamping groove 5321 arranged on the second limiting piece 532 for clamping, the clamping body 611 is provided with two or more, and the two or more clamping bodies 611 are fixed on the same clamping seat 612, and then the clamping foot 613 connected and arranged on the clamping seat 612 is used to realize the fixation of the cover plate clamping part 61 and the cover plate 600. With such a design, the relative positions of the two or more clamping bodies 61 are fixed in advance, which ensures the convenient assembly between the cover plate 600 and the trigger module 500. As a preferred, the cover plate clamping part 61 is an integral whole, which is convenient for connecting the cover plate clamping part to the cover plate 600, such as using stamping method, cutting method, injection molding method or casting method.

[0064] When the cover plate clamping portion 61 is formed by stamping, the clamping body 611 and the clamping foot 613 are connected at different positions of the clamping seat 612, such as the clamping body 611 is located at the front and rear sides of the clamping seat 612, and the clamping foot 613 is located at the left and right sides of the clamping seat 612, so as to be formed by stamping with a plate body. It can be understood that the clamping body 611 and the clamping foot 613 are respectively arranged in opposite directions relative to the clamping seat 612, such as the clamping body 611 is bent downward, and the clamping foot 613 is bent upward, so that when the clamping foot 613 is connected with the cover plate 600, the spacing between the clamping body 611 and the cover plate 600 is large, and the cover plate 600 is conveniently clamped on the trigger module 500 by the clamping body 611.

[0065] In addition, the components in the cover plate clamping portion 61 can be simplified, specifically, the clamping foot 613 can be combined with the clamping seat 612 as one part, and the part of the clamping seat 612 is used as the clamping foot 613, that is, the clamping seat 612 is directly used instead of the original clamping foot 613 to connect with the cover plate 600.

[0066] Although the preferred embodiments of the present application have been described, those skilled in the art can make further changes and modifications to these embodiments once they know the basic inventive concept. Therefore, the appended claims are intended to be interpreted as including all the preferred embodiments and all the changes and modifications falling within the scope of the present application.

[0067] Obviously, various modifications and changes can be made to the present application by those skilled in the art without departing from the spirit and scope of the present application. Thus, it is intended that the present application cover the modifications and changes as falling within the scope of the claims and their equivalents.

Claims

1. A triggering module, characterized in that, The trigger module (500) includes: Trigger block (51), wherein two trigger blocks (51) are provided, and the two trigger blocks (51) are spaced apart and form the outer contour of the trigger module (500); A trigger (52) is positioned horizontally between the two trigger blocks (51) to restrict the relative convergence of the two trigger blocks (51); and A limiting member (53) is provided on the two trigger blocks (51), and one or more limiting members (53) are provided. When at least one limiting member (53) is fixed on the trigger block (51), it has an inward tendency so that the two trigger blocks (51) have a tendency to shrink together.

2. The triggering module as described in claim 1, characterized in that, The outer side of the trigger block (51) is provided with threads; or, the outer side of the trigger block (51) is provided with a protruding or concave contact portion (511), through which the trigger module (500) is limited to a position state by an external force.

3. The triggering module as described in claim 1, characterized in that, The limiting member (53) includes a first limiting member (531) and a second limiting member (532), at least one of the first limiting member (531) and the second limiting member (532) having the ability to elastically deform, so that the trigger block (51) has a tendency to retract; the first limiting member (531) and the second limiting member (532) are spaced apart, and the trigger member (52) is located between the first limiting member (531) and the second limiting member (532).

4. The triggering module as described in claim 3, characterized in that, The trigger (52) is disposed in the middle of the two trigger blocks (51), the first limiting member (531) is disposed in the lower part of the two trigger blocks (51), and the second limiting member (532) is disposed in the upper part of the two trigger blocks (51).

5. The triggering module as described in claim 3, characterized in that, The first limiting member (531) has elastic deformation capability, which causes the trigger module (500) to retract; the second limiting member (532) is disposed on the two trigger modules (500) to restrict the two trigger modules (500) from expanding outward.

6. The triggering module as described in claim 5, characterized in that, The limiting member (53) further includes a third limiting member (533), which is configured on the opposite side of the first limiting member (531) relative to the second limiting member (532). The third limiting member (533) and the second limiting member (532) enable the trigger module (500) to maintain a stable state under the action of the first limiting member (531).

7. The triggering module as described in claim 6, characterized in that, The first limiting member (531) is a retaining ring with elastic deformation capability. The retaining ring is locked on the two trigger blocks (51) in the elastic deformation state. The second limiting member (532) and the third limiting member (533) are retaining rings, and the inner ring of the retaining ring is sleeved on the two trigger blocks (51).

8. The triggering module as described in claim 3, characterized in that, The trigger block (51) is provided with a first connecting portion (512) relative to the first limiting member (531). The first limiting member (531) has an elastically deformable enclosing cavity, which encloses at least a portion of the first connecting portion (512) on both trigger blocks (51).

9. A fire sprinkler head, characterized in that, Fire sprinklers include: The trigger module (500), as described in any one of claims 1-8, is provided with a limiting member (53) located on the upper part of the trigger block (51), and the limiting member (53) is provided with a cover plate slot (5321); A cover plate (600) is provided with a cover plate snap-fit ​​part (61) protruding from the cover plate (600). The cover plate snap-fit ​​part (61) is detachably snapped into the cover plate slot (5321) so as to fix the position of the cover plate (600).

10. The fire sprinkler head as described in claim 9, characterized in that, The inner wall portion of the limiting member (53) is used to cover and define the two trigger blocks (51), and the cover plate slot (5321) is offset relative to the trigger blocks (51) on the inner wall of the limiting member (53).

11. The fire sprinkler head as described in claim 9, characterized in that, The cover plate latching part (61) is an integral unit, and the cover plate latching part includes: The snap-fit ​​body (611) is provided in two or more forms, and the snap-fit ​​body (611) is snap-fitted with the cover plate slot (5321); A snap-fit ​​foot (613) is fixedly connected to the cover plate.

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