Fire engineering weak current safety detection device

Abstract

The utility model discloses a fire-fighting engineering weak current safety detection device, which comprises a box body, an end cover is fixed on the front side of the box body through a bolt, a conduit is hermetically communicated with the back of the end cover at the position of a prefill valve, and the conduit at the upper end and the lower end of each branch pipe is fixedly communicated with one-way valves for input of liquid pipes symmetrically arranged on two sides of the branch pipes. A piston rod is slidably arranged in the liquid pipe in a sealed mode, a transverse arm is rotatably arranged in a rotating groove in the upper end of the piston rod, at least one second tension spring is fixedly connected to the surface of a rotating shaft of the transverse arm, one end of each second tension spring is fixed to the lower portion in a piston rod groove, and a vertical arm is rotatably arranged in the rotating groove in the upper end of the transverse arm. The vertical arm is also rotationally limited and reset in the rotating groove through the first tension spring, and the upper end of the vertical arm is fixed to the inner concave face of the ejector block. The utility model has the advantages of convenient assembly and hydraulic anti-seizure, and is more beneficial to use and popularization in actual life.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of fire engineering, and specifically relates to a fire engineering weak current safety detection device. BACKGROUND

[0002] Fire weak current refers to the weak current system, weak current equipment and the like in the fire system and fire engineering, which is generally composed of various electronic sensors, circuit boards, IC modules and the like into a professional industrial computer, detects the occurrence of fire through the information provided by smoke sensing, temperature sensing probes and the like, analyzes by the computer system, and then outputs control signals, the control signals drive the electromagnetic valve and other electric control elements on the release gate of the professional fire extinguishing agent container to execute actions, and the fire extinguishing agent is released in the fire scene, so the safety needs to be detected.

[0003] In the current field of fire engineering, most weak current safety detection devices are often fixed in the wall in an embedded manner during installation. This installation method is mainly based on the consideration of the assembly stability and protection of the device. By embedding the device in the wall, it can to some extent avoid direct interference from the external environment, thereby ensuring its normal operation. However, this seemingly reasonable installation method has some potential problems. With the passage of time, the wall may gradually show signs of aging due to the increase in service life. Under the long-term bearing pressure, the stability of the wall structure will be affected, and then settlement will occur. In addition, unpredictable external natural disaster factors such as earthquakes may also cause the wall to settle to varying degrees. In the case of wall settlement, the fire engineering weak current safety detection device assembled in the wall will be seriously affected. On the one hand, the settlement of the wall will cause extrusion to the surface of the device. Since the device is embedded in the wall and cannot move freely, the extrusion force will cause the surface of the device to gradually become concave. These concavities may damage the integrity of the device shell, thereby affecting the normal work of the internal precision components, and even may cause the connection between the components to become loose or damaged, seriously threatening the reliability of the entire fire weak current safety detection system. On the other hand, the settlement of the wall will also cause the device to be stuck in the wall. Due to the deformation of the wall, the space around the device will be compressed, and the friction between the device and the wall will increase sharply, causing the device to be tightly stuck in the wall. This not only affects the performance of the device in daily use, but more importantly, when the device needs to be maintained or removed later, this stuck state will bring great difficulty. Maintenance personnel may need to spend a lot of time and effort to try to remove the device, or in some extreme cases, the wall may need to be destroyed to complete the removal operation of the device, which undoubtedly increases the maintenance cost and difficulty of the fire engineering, and also poses a major challenge to the continuous and effective operation of the entire fire system.

[0004] To solve the above problems, the utility model provides a fire engineering weak current safety detection device. Utility model content

[0005] In view of the deficiency of prior art, the utility model provides a fire engineering weak current safety detection device, solves above -mentioned problem.

[0006] To realize above -mentioned purpose, the utility model is realized through following technical schemes: a fire engineering weak current safety detection device, including fire engineering weak current safety detection main part, the fire engineering weak current safety detection main part includes the box, the front side of the box is fixed with the end cover through bolt, the back of the end cover is sealed and is communicated with the position of the liquid filling valve and is provided with the catheter, the catheter is fixed and communicated with the one -way valve for input in the upper and lower ends of each branch pipe and the liquid pipe symmetrically arranged on the both sides of the branch pipe, the inside of the liquid pipe is sealed and is slidably provided with the piston rod, the inside of the upper end rotation groove of the piston rod is rotatably provided with the horizontal arm, and at least one second tension spring is fixedly connected on the surface of the horizontal arm rotation shaft, one end of the second tension spring is fixed below the piston rod groove, the inside of the upper end rotation groove of the horizontal arm is rotatably provided with the vertical arm, and the vertical arm is rotatably defined by the first tension spring, and the upper end of the vertical arm is fixed to the inner concave surface of the top block.

[0007] Preferably, the middle position of the front side of the end cover is integrally provided with a control interface, and the liquid filling valve is fixedly arranged on both sides of the control interface.

[0008] Preferably, the catheter is a railing shape, including a main pipe and at least one branch pipe.

[0009] Preferably, the liquid pipes are connected to the four corner positions of the box through bolts, and the one-way valves are fixedly and communicatively arranged at positions close to the lower ends of the liquid pipe sides and are divided into input and output two, wherein the one-way valves for output are not communicated with the pipe.

[0010] Preferably, the rotation groove inside the horizontal arm and the rotation groove inside the piston rod are perpendicular to each other.

[0011] Preferably, the vertical arm is supported on the position farthest from the wall surface of the top block, and the tip of the top block is supported on the four corner positions of the assembly groove in the wall.

[0012] Beneficial effects

[0013] The utility model provides a fire engineering weak current safety detection device. Compared with the prior art, the utility model has the following beneficial effects:

[0014] (1), the fire engineering weak current safety detection device, through the liquid pipe, piston rod, transverse arm, vertical arm and top block etc. Structure setting, realize the convenient embedded installation, in the installation process, only need to embed the box body into the wall assembly slot, adjust the liquid pipe and make the top block tip point to the assembly slot four corners, connect the liquid filling valve and external input equipment and input safety liquid, liquid can push the piston rod to move, and then drive the top block to the assembly slot four corners and press fixed, this installation method does not need complex additional fixing device or tedious operation steps, simple operation is easy to understand, ordinary technical personnel can easily complete, compared with the traditional embedded installation mode, greatly saves the installation time and labor cost, improves the assembly efficiency, especially in large-scale fire engineering installation, can effectively shorten the construction period, reduce the influence of construction on the overall project progress.

[0015] (2), the fire engineering weak current safety detection device, when the wall body subsides, the top block is extruded, the vertical arm and the transverse arm will rotate in the rotating groove according to the extrusion direction, stretch the first tension spring and the second tension spring to buffer the pressure, prevent the device shell from being damaged due to sudden stress, at the same time, the vertical arm and the transverse arm under pressure push the piston rod to slide to the inside of the liquid pipe, extrude the liquid in the liquid pipe to release pressure to the assembly slot through the output check valve, in this process, on the one hand, the excessive pressure generated by the wall subsidence on the device is released, and the device is prevented from being damaged by pressure; on the other hand, through the release of liquid and the sliding of piston rod, the dynamic adjustment of support is realized, so that the device can still maintain a certain activity space under the condition of wall deformation, effectively avoiding the device from being stuck in the assembly slot, this feature ensures that the device can still work normally when the wall subsides and other conditions, reduces the frequency of maintenance and replacement due to device failure, reduces the maintenance cost of fire engineering, ensures the continuous and effective operation of fire protection system, and when the device needs to be maintained or taken out, it will not be difficult to operate because of being stuck, further facilitating the later maintenance work. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 is the external structure perspective view of the utility model;

[0017] Figure 2 is the end cover, top block and connection schematic diagram of the utility model;

[0018] Figure 3 is the top block and connection structure schematic diagram of the utility model;

[0019] Figure 4 is the top block and connection structure section view of the utility model.

[0020] In the figure: 1, the weak current safety detection main body of the fire engineering; 11, the box; 12, the end cover; 121, the liquid filling valve; 122, the guide pipe; 13, the top block; 131, the vertical arm; 132, the first tension spring; 133, the horizontal arm; 134, the second tension spring; 135, the piston rod; 136, the liquid pipe; 137, the one-way valve. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0022] Please refer to Figures 1-4 A weak current safety detection device for fire engineering, comprising a weak current safety detection main body 1 of fire engineering, the weak current safety detection main body 1 of fire engineering includes box 11, the front side of box 11 is fixed with end cover 12 by bolt, the middle position of the front side of end cover 12 is integrally provided with control interface, and the liquid filling valve 121 is fixedly arranged on the both sides of control interface, the back of end cover 12 is sealingly and communicatively provided with guide pipe 122 at the position of liquid filling valve 121, guide pipe 122 is rail-shaped, comprising main pipe and at least one branch pipe, and the upper end and the lower end of each branch pipe are fixedly communicated with the one-way valve 137 for input of the liquid pipe 136 symmetrically arranged on the both sides of branch pipe, the liquid pipe 136 is connected by bolt at the four corner positions of box 11, the one-way valve 137 is fixedly and communicatively arranged at the position close to the lower end of the side of liquid pipe 136, and is divided into input and output two, wherein the one-way valve 137 for output is not communicated with pipe, and under specified conditions, it will release pressure to the space where box 11 is located, the inside of liquid pipe 136 is sealingly and slidably provided with piston rod 135, the opposite end of piston rod 135 is provided with front and rear open rotary groove, the horizontal arm 133 is rotatably arranged in the rotary groove, at least one second tension spring 134 is fixedly connected on the surface of the rotary shaft of horizontal arm 133, one end of second tension spring 134 is fixed below the groove in piston rod 135, and the front and rear rotation of horizontal arm 133 is limited and reset by second tension spring 134, the rotary groove of the same type in the inside of piston rod 135 is opened in the opposite end of horizontal arm 133 connected with piston rod 135 in the direction perpendicular to the inside rotary groove of piston rod 135, the vertical arm 131 is rotatably arranged in the rotary groove, and the rotation of vertical arm 131 in the rotary groove is limited and reset by first tension spring 132, the upper end of vertical arm 131 is fixed on the inner concave surface of top block 13, and the vertical arm 131 is supported on the position farthest from the wall surface of top block 13, and the sharp end of top block 13 is supported on the four corner positions of the wall body assembly groove.

[0023] When installing, the box 11 is embedded in the wall assembly slot, the liquid pipe 136 is adjusted so that the top block 13 tip points to the four corners of the assembly slot, the liquid filling valve 121 is connected with the external input device, the safe liquid is input, the liquid enters the liquid pipe 136 through the conduit 122 and the input one-way valve 137, the piston rod 135 is pushed to move upwards, the top block 13 is driven to the four corners of the assembly slot and is pressed to be fixed, after being stable, the liquid input is stopped to complete the installation; when the wall settles, the size of the assembly slot changes, the top block 13 is extruded, the vertical arm 131 and the horizontal arm 133 rotate according to the extrusion direction, the first tension spring 132 and the second tension spring 134 are stretched to buffer the pressure and prevent the shell from being damaged, at the same time, the compression arm pushes the piston rod 135 to slide downwards, extrudes the liquid in the liquid pipe 136, and releases the pressure to the assembly slot through the output one-way valve 137, so as to avoid being broken under pressure and adjust the support to prevent the device from being locked.

[0024] In summary, through the structure of the liquid pipe 136, the piston rod 135, the horizontal arm 133, the vertical arm 131 and the top block 13, convenient embedded installation is realized. In the installation process, the box 11 is only embedded in the wall assembly slot, the liquid pipe 136 is adjusted so that the top block 13 tip points to the four corners of the assembly slot, the liquid filling valve 121 is connected with the external input device and the safe liquid is input, the liquid can push the piston rod 135 to move, and then drive the top block 13 to the four corners of the assembly slot and press to be fixed. This installation method does not need complex additional fixing device or tedious operation steps, is simple and easy to understand, and can be easily completed by ordinary technical personnel. Compared with the traditional embedded installation method, the installation time and labor cost are greatly saved, the assembly efficiency is improved, especially in large-scale fire engineering installation, the construction period can be effectively shortened, and the influence of construction on the overall project progress is reduced. When the wall settles, the top block 13 is extruded, the vertical arm 131 and the horizontal arm 133 will rotate in the rotating groove according to the extrusion direction, the first tension spring 132 and the second tension spring 134 are stretched to buffer the pressure and prevent the device shell from being damaged due to sudden stress, at the same time, the vertical arm 131 and the horizontal arm 133 under pressure push the piston rod 135 to slide to the inside of the liquid pipe 136, extrude the liquid in the liquid pipe 136, and release the pressure to the assembly slot through the output one-way valve 137. In this process, on the one hand, the excessive pressure generated by the wall settlement on the device is released to avoid the device being broken under pressure; on the other hand, through the release of the liquid and the sliding of the piston rod 135, the dynamic adjustment of the support is realized, so that the device still has a certain activity space under the condition of wall deformation, effectively avoiding the device from being stuck in the assembly slot. This feature ensures that the device can still work normally when the wall settles, reduces the frequency of maintenance and replacement due to device failure, reduces the maintenance cost of the fire engineering, ensures the continuous and effective operation of the fire protection system, and when the device needs to be maintained or taken out, it will not be difficult to operate because of being stuck, further facilitating the later maintenance work.

[0025] Meanwhile, the contents not described in detail in the specification are all the prior art known to those skilled in the art.

[0026] Working principle: when the device is installed, the box 11 is embedded in the assembly slot of the wall body, and the liquid pipe 136 is adjusted so that the tip of the top block 13 points to the four corner positions of the assembly slot, then the liquid filling valve 121 is connected with the external input device, the safety liquid (a liquid that will not affect the weak current safety detection device of the fire engineering) is input into the inside of the guide pipe 122 through the liquid filling valve 121, then the input liquid will uniformly pass through the input one-way valve 137 into the inside of the liquid pipe 136, and the liquid entering the liquid pipe 136 will push the piston rod 135 to slide upward and move out, the piston rod 135 sliding out will push the top block 13 to the four corner positions of the assembly slot through the vertical arm 131 and the horizontal arm 133, and press and fix, after being stable, the input of the safety liquid into the inside of the liquid pipe 136 can be stopped, so as to realize the embedded installation of the weak current safety detection device of the fire engineering in the wall body (the line connection part is executed before assembly); during use, when the wall body settles, the size of the assembly slot will change, and the top block 13 will be extruded, after the top block 13 is stressed, since the vertical arm 131 and the horizontal arm 133 are connected with the top block 13 and are limited in the specified rotating slot through the first tension spring 132 and the second tension spring 134, the vertical arm 131 or the horizontal arm 133 will rotate and deviate in the rotating slot according to the extrusion direction, the first tension spring 132 and the second tension spring 134 are stretched, thereby absorbing part of the pressure generated by the wall body settlement, playing a buffering role, preventing the device shell from being damaged due to sudden stress, at the same time, the vertical arm 131 and the horizontal arm 133 extruded will push the piston rod 135 to slide into the inside of the liquid pipe 136, the piston rod 135 moving downward will extrude the safety liquid in the inside of the liquid pipe 136, then the safety liquid will be relieved to the inside of the assembly slot through the output one-way valve 137, so as to avoid breakage under pressure, at the same time, the adjustment of the support is synchronized, avoiding the locking of the device in the assembly slot.

[0027] It should be noted that, in the specification, the relationship terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between the entities or operations. Moreover, the terms "include", "contain" or any other variants thereof are intended to cover non-exclusive inclusion, so that the process, method, article or device including a series of elements not only includes those elements, but also includes other elements not explicitly listed, or includes elements inherent to such process, method, article or device.

[0028] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A fire protection engineering low-voltage electrical safety testing device, comprising a fire protection engineering low-voltage electrical safety testing body (1), wherein the fire protection engineering low-voltage electrical safety testing body (1) includes a housing (11), and an end cap (12) is fixed to the front side of the housing (11) by bolts, characterized in that: The back of the end cap (12) is sealed and connected to the filling valve (121) with a conduit (122). The conduit (122) is fixedly connected to the one-way valve (137) for input of the liquid pipe (136) symmetrically arranged on both sides of the branch pipe at the upper and lower ends of each branch pipe. The liquid pipe (136) is sealed and slidably provided with a piston rod (135). The upper end of the piston rod (135) is rotatably provided with a transverse arm (133) inside the rotating groove. At least one second tension spring (134) is fixedly connected to the surface of the rotating shaft of the transverse arm (133). One end of the second tension spring (134) is fixed below the groove of the piston rod (135). The upper end of the transverse arm (133) is rotatably provided with a vertical arm (131) inside the rotating groove. The vertical arm (131) is rotatably limited by the first tension spring (132). The upper end of the vertical arm (131) is fixed to the concave surface of the top block (13).

2. The fire protection engineering low-voltage electrical safety detection device according to claim 1, characterized in that: A control interface is integrally provided in the middle of the front side of the end cap (12), and filling valves (121) are fixedly provided on both sides of the control interface.

3. The fire protection engineering low-voltage electrical safety detection device according to claim 1, characterized in that: The conduit (122) is railing-shaped and includes a main conduit and at least one branch conduit.

4. The fire protection engineering low-voltage electrical safety detection device according to claim 1, characterized in that: The liquid pipes (136) are all bolted to the four corners of the housing (11). The one-way valves (137) are fixedly connected to the side of the liquid pipes (136) near the lower end, and are divided into input and output. The one-way valve (137) used for output is not connected to the pipeline.

5. A fire protection engineering low-voltage electrical safety detection device according to claim 1, characterized in that: The groove inside the transverse arm (133) is perpendicular to the groove inside the piston rod (135).

6. The fire protection engineering low-voltage electrical safety detection device according to claim 1, characterized in that: The vertical arm (131) is supported at the position where the distance between the top block (13) and the wall is the longest, and the tip of the top block (13) is supported at the four corners of the assembly groove inside the wall.

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