Improved fire-fighting spray header

Abstract

The utility model discloses an improved fire-fighting spray head which comprises a shell, a spray pipe is arranged in the shell, a connecting piece is arranged on the shell, a notch is formed in the connecting piece, sealing plates are symmetrically arranged in the notch in a sliding mode, a plurality of elastic pieces arranged in a linear array are arranged in the notch, and connecting blocks are symmetrically arranged on the sealing plates. Arc-shaped pieces are arranged on the connecting blocks, a placing part is formed between the two arc-shaped pieces, and the two sealing plates are pushed by the elastic piece in a default state to be in butt joint so as to seal the spraying pipe. According to the improved fire-fighting spray header provided by the utility model, the spray pipe is used for spraying water to extinguish a fire, the spray pipe is connected with the water pipe through the connecting piece on the shell, and through the notch and the sealing plate on the connecting piece, the fire can be extinguished without influence when a fire occurs, and water cannot flow when the fire does not exist; the sealing of the water pipe is realized through the butt joint of the sealing plates, and the thermosensitive glass ball is placed through the placing part.

Description

Technical Field

[0001] The utility model relates to the technical field of fire sprinkler heads, in particular to an improved fire sprinkler head. Background Art

[0002] Fire sprinkler heads are used in fire sprinkler systems. When a fire occurs, water is sprayed out through the sprinkler head splash plate to extinguish the fire. They are divided into pendent sprinkler heads, upright sprinkler heads, ordinary sprinkler heads, side wall sprinkler heads, etc.

[0003] According to the disclosure (announcement) number: CN205814929U, the disclosure (announcement) date: 2016-12-21, a embedded fire sprinkler head is disclosed, which includes a body, a sleeve, a splash plate assembly, an elastic support ring, an upper support ring seat, a lower support ring seat, a heat collecting plate, a fusible alloy plate and a screw, the upper support ring seat and the lower support ring seat are arranged below the splash plate assembly, and the bottom surface of the upper support ring seat and the end surface of the lower support ring seat are both provided with a tapered portion, the elastic support ring is arranged between the tapered portions of the upper support ring seat and the lower support ring seat, a limiting groove is provided on the inner wall of the lower part of the sleeve, the screw passes through the threaded holes provided on the fusible alloy plate, the heat collecting plate, the lower support ring seat and the upper support ring seat in sequence to connect the four into one, and after the screw is installed in place, its tail end is pressed tightly against the bottom of the splash plate assembly, and the elastic support ring is stuck in the limiting groove.

[0004] It is known from the above patents and prior art that the sprinkler head is usually not used for many years. However, over time, the connection between the sprinkler head and the water pipe is corroded, resulting in water leakage. In this case, the sprinkler head needs to be replaced, which is troublesome and wastes resources. Utility Model Content

[0005] The utility model aims to provide an improved fire sprinkler head, which can prevent the sprinkler head from leaking when it is not used for a long time.

[0006] In order to achieve the above-mentioned object, the utility model provides the following technical solutions: an improved fire sprinkler head, comprising a shell, a sprinkler pipe is arranged in the shell, a connecting piece is arranged on the shell, a notch is opened on the connecting piece, a sealing plate is symmetrically slidably arranged in the notch, a plurality of elastic members arranged in a linear array are arranged in the notch, a connecting block is symmetrically arranged on the sealing plate, an arc-shaped member is arranged on the connecting block, and a placement portion is formed between two of the arc-shaped members;

[0007] In the default state, the two sealing plates are pushed by the elastic member to butt against each other, thereby sealing the spray pipe.

[0008] Preferably, a slide groove is provided on the connecting member, and an insert block is slidably arranged in the slide groove.

[0009] Preferably, a sealing plate is included, the sealing plate is provided with a slot, and the insert block is movably arranged in the slot.

[0010] Preferably, a contact plate is provided at the end of the sealing plate, and two contact plates abut against each other to seal the spray pipe.

[0011] Preferably, a spray head is provided at the bottom of the spray pipe.

[0012] Preferably, the elastic member is a spring.

[0013] In the above technical scheme, an improved fire sprinkler head provided by the utility model has the following beneficial effects: fire is extinguished by spraying water through the sprinkler pipe, the sprinkler pipe and the water pipe are connected by the connecting piece on the shell, and the fire can be extinguished without being affected by the groove and the sealing plate on the connecting piece, and water will not flow when there is no fire, the sealing of the water pipe is achieved by the docking of the sealing plate, and the thermosensitive glass ball is placed through the placement part. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present utility model. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0015] Figure 1 The overall structural diagram provided for the embodiment of the utility model;

[0016] Figure 2 A schematic diagram of a cross-sectional structure provided for an embodiment of the utility model;

[0017] Figure 3 This is a schematic diagram of the structure inside the housing provided by an embodiment of the utility model.

[0018] Description of reference numerals:

[0019] Shell; 10, sprinkler head; 11, arc-shaped member; 12, placement portion; 121, connection block; 13, connection member; 131, slide groove; 14, notch; 16, contact plate; 17, elastic member; 18, sealing plate; 181, slot; 19, sprinkler pipe; 20, plug block. DETAILED DESCRIPTION

[0020] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0021] like Figure 1-3 As shown, an improved fire sprinkler head comprises a housing 1, a sprinkler pipe 19 is arranged in the housing 1, a connecting member 13 is arranged on the housing 1, a notch 14 is provided on the connecting member 13, a sealing plate 18 is symmetrically slidably arranged in the notch 14, a plurality of elastic members 17 arranged in a linear array are arranged in the notch 14, a connecting block 121 is symmetrically arranged on the sealing plate 18, an arc-shaped member 11 is arranged on the connecting block 121, and a placement portion 12 is formed between the two arc-shaped members 11;

[0022] In the default state, the two sealing plates 18 are pushed by the elastic member 17 to butt against each other, thereby sealing the spray pipe 19 .

[0023] Specifically, when in use, the thermosensitive glass ball is placed on the placement portion 12 formed by the two arc-shaped members 11, and then the two sealing plates 18 are in contact with each other in the default state, and the two sealing plates 18 slide in the grooves 14, and the elastic member 17 pushes the sealing plates 18 to contact and seal, and then the thermosensitive glass ball is placed on the placement portion 12. When encountering a fire, the thermosensitive glass ball will expand and burst. When the thermosensitive glass ball expands, it will push the two sealing plates 18 to slide outward toward the grooves 14 on both sides, and water will spray out at this time.

[0024] In the above scheme, water is sprayed through the sprinkler pipe 19 to extinguish the fire. The sprinkler pipe 19 and the water pipe are connected through the connector 13 on the shell 1. The notch 14 and the sealing plate 18 on the connector 13 can achieve that when a fire occurs, the fire can be extinguished without being affected, and water will not flow when there is no fire. The sealing of the water pipe is achieved through the docking of the sealing plate 18, and the thermosensitive glass ball is placed through the placement portion 12.

[0025] As an embodiment further provided by the present invention, according to Figure 1 , Figure 2 and Figure 3 As shown, a slide groove 131 is formed on the connecting member 13 , and an insert block 20 is slidably disposed in the slide groove 131 .

[0026] Furthermore, it comprises a sealing plate 18 , on which a slot 181 is formed, and the inserting block 20 is movably disposed in the slot 181 .

[0027] Specifically, when the two arc-shaped members 11 are pushed by the expansion of the thermosensitive glass ball, the two arc-shaped members 11 are pushed inward. At the same time, when the sealing plate 18 moves to the plug block 20 on the slide groove 131, the plug block 20 will fall into the slot 181, fixing the sealing plate 18 in the notch 14 to prevent affecting the water spray during fire fighting.

[0028] As an embodiment further provided by the present invention, according to Figure 2 As shown, a contact plate 16 is provided at the end of the sealing plate 18 , and the two contact plates 16 abut against each other to seal the spray pipe 19 .

[0029] Specifically, the two contact plates 16 are rubber plates, which seal the spray pipe 19 after being fixed.

[0030] As an embodiment further provided by the present invention, according to Figure 1 As shown, a spray head 10 is provided at the bottom of the spray pipe 19 .

[0031] Specifically, water is sprayed through the sprinkler pipe 19 and the sprinkler head 10 to extinguish the fire.

[0032] Working principle: When in use, place the thermosensitive glass ball on the placement part 12 composed of two arc-shaped parts 11, and then the two sealing plates 18 are in contact with each other in the default state, and the two sealing plates 18 slide in the groove 14, and the elastic part 17 pushes the sealing plate 18 to seal, and then place the thermosensitive glass ball on the placement part 12. When encountering a fire, the thermosensitive glass ball will expand and burst. When the thermosensitive glass ball expands, it will push the two sealing plates 18 to slide outward toward the grooves 14 on both sides, and water will spray out at this time. Then, when the two arc-shaped parts 11 are pushed by the expansion of the thermosensitive glass ball, the two arc-shaped parts 11 are pushed inward. At the same time, when the sealing plate 18 moves to the plug 20 on the slide groove 131, the plug 20 will fall into the slot 181, fixing the sealing plate 18 in the groove 14 to prevent affecting the water spray during fire fighting.

[0033] The above only describes some exemplary embodiments of the present invention by way of illustration. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. An improved fire sprinkler head, characterized in that: The invention comprises a shell (1) in which a spray pipe (19) is arranged, a connecting piece (13) is arranged on the shell (1), a notch (14) is formed on the connecting piece (13), a sealing plate (18) is symmetrically slidably arranged in the notch (14), a plurality of elastic pieces (17) arranged in a linear array are arranged in the notch (14), a connecting block (121) is symmetrically arranged on the sealing plate (18), an arc-shaped piece (11) is arranged on the connecting block (121), and a placement portion (12) is formed between two arc-shaped pieces (11); In a default state, the two sealing plates (18) are pushed by the elastic member (17) to butt against each other, thereby sealing the spray pipe (19).

2. An improved fire sprinkler head according to claim 1, characterized in that: The connecting member (13) is provided with a sliding groove (131), an insert block (20) is slidably arranged in the sliding groove (131), and the insert block (20) is movably arranged on the sealing plate (18).

3. An improved fire sprinkler head according to claim 2, characterized in that: The sealing plate (18) is provided with a slot (181), and the insert block (20) is movably disposed in the slot (181).

4. The improved fire sprinkler head according to claim 1, characterized in that: A contact plate (16) is provided at the end of the sealing plate (18), and the two contact plates (16) are in contact with each other to seal the spray pipe (19).

5. The improved fire sprinkler head according to claim 1, characterized in that: A spray head (10) is provided at the bottom of the spray pipe (19).

6. An improved fire sprinkler head according to claim 1, characterized in that: The elastic member (17) is a spring.

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