Ventilation fireproof valve for rail transit

Abstract

The utility model relates to the technical field of fireproof valves, and discloses a ventilation fireproof valve for rail transit, which comprises a valve body, an actuating mechanism is arranged at the top end of the valve body, a blade is fixedly connected to the middle of the actuating mechanism, and the actuating mechanism comprises a rod assembly and a shell. A linkage assembly, a reinforcing assembly and an automatic closing assembly are arranged in the shell, the reinforcing assembly comprises a fixing sleeve fixedly connected to the side face of the long rod, a reinforcing ring is fixedly connected to the side face of the fixing sleeve, a connecting rod is fixedly connected to the bottom end of the reinforcing ring, and a rotating ring is fixedly connected to the bottom end of the connecting rod; the bottom end of the rotating ring is fixedly connected with a reinforcing rod, the reinforcing assembly is arranged, the lower portion of the reinforcing rod is fixedly connected with two sets of stop blocks, the sides, close to the blades, of the stop blocks are fixedly connected with blocking pieces, the blocking pieces directly act on the blades from the two sides, the effect of reinforcing the blades is achieved, the blades can better resist wind resistance, and opening and closing of the blades are more stable.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of fire damper, more particularly to a ventilation fire damper for rail transit. BACKGROUND

[0002] The fire damper is a valve form closed by temperature control of memory alloy, gravity and spring mechanism. The ventilation fire damper for rail transit needs to cope with piston effect caused by train operation, and realizes air exchange between tunnel and station through piston ventilation (air pressure difference formed by high-speed train running).

[0003] The prior art has the following deficiencies: the ventilation system of closed space such as tunnel and platform is complex, and the fire damper needs to have higher frequency opening and closing ability and vibration resistance to realize stable valve closing in dynamic airflow environment, but the opening and closing ability of the existing fire damper blade is insufficient, and it is easily affected by airflow formed by high-speed train running in the tunnel, resulting in unstable opening and closing. UTILITY MODEL CONTENT

[0004] In order to overcome the above-mentioned defects of the prior art, the utility model provides a ventilation fire damper for rail transit to solve the problems in the above background art.

[0005] In order to achieve the above-mentioned purpose, the utility model provides the following technical scheme: a ventilation fire damper for rail transit, comprising a valve body, further comprising: an actuator, a blade, a fixing mechanism, the top end of the valve body is provided with an actuator, the middle part of the actuator is fixedly connected with a blade, wherein the blade is arranged in the inside of the valve body, the bottom end of the actuator is movably connected with a fixing mechanism, the actuator comprises a rod assembly and a shell, wherein the rod assembly comprises a runner at the top end, the inside of the runner is fixedly connected with a long rod, the inside of the shell is provided with a linkage assembly, a reinforcing assembly and an automatic closing assembly, wherein the linkage assembly and the reinforcing assembly are sequentially arranged on the side of the long rod from top to bottom, the reinforcing assembly comprises a fixing sleeve fixedly connected on the side of the long rod, the side of the fixing sleeve is fixedly connected with a reinforcing ring, the bottom end of the reinforcing ring is fixedly connected with a connecting rod, the bottom end of the connecting rod is fixedly connected with a rotating ring, wherein the edge of the rotating ring is movably connected with the top end of the valve body, the bottom end of the rotating ring is fixedly connected with a reinforcing rod, and the reinforcing rod is arranged on both sides of the blade.

[0006] Further, the lower part of the reinforcing rod is fixedly connected with two groups of resistance blocks, and the side of the resistance block close to the blade is fixedly connected with a baffle, wherein the side plane of the baffle is larger than the side plane area of the resistance block.

[0007] Further, the side of the long rod is sleeved with a spring, the bottom end of the spring is fixedly connected with a gear three, the top end is fixedly connected with the inside top end of the shell, the inside of the gear three is fixedly connected with the side of the long rod, the side of the gear three is provided with a blocking rod, one end of the blocking rod is provided with a clamping block, and the clamping block is clamped with the edge of the gear three, the end of the blocking rod provided with the clamping block is fixedly connected with a pull ring, and the other end is movably connected with the top end of the valve body through a short rod one.

[0008] Further, the end of the blocking rod provided with the clamping block is fixedly connected with a connecting rod, one end of the connecting rod is arranged in the inside of the fuse, wherein the side of the fuse is provided with a contact electrode, the electrode ring is provided with a fixing rod, the bottom end of the fixing rod is fixedly connected with a fusible metal, and the fusible metal is arranged in the inside of the valve body.

[0009] Further, the two sides of the valve body pipeline are provided with flanges at the openings, which are used for being connected with the ventilation pipeline, and the two sides of the inside of the valve body are fixedly connected with pad strips, which can form sealing with the two side edges of the blades when the blades are closed.

[0010] Further, the bottom end of the long rod is fixedly connected with a screw rod, the side of the screw rod is fixedly connected with the inside of the blade, and the bottom end of the screw rod is fixedly connected with a conical gear one.

[0011] Further, the edge of the conical gear one is engaged with a conical gear two, the side of the conical gear two is fixedly connected with a gear four through a short rod two, the edge of the gear four is engaged with a lead screw, the top end of the lead screw is fixedly connected with a blocking rod, the side of the blocking rod is movably connected with the bottom end of the valve body, in addition, the side of the short rod two is movably connected with the inside bottom end of the cover through a fixing seat, and the top end of the cover is fixedly connected with the bottom end of the valve body.

[0012] The technical effects and advantages of the novel valve body are as follows:

[0013] 1. The reinforcing assembly is arranged, the reinforcing assembly comprises a fixing sleeve, a reinforcing ring, a connecting rod and a rotating ring, the edge of the rotating ring is movably connected with the top end of the valve body, the bottom end of the rotating ring is fixedly connected with a reinforcing rod, the reinforcing rod is arranged on the two sides of the blade, the lower part of the reinforcing rod is fixedly connected with two groups of blocking pieces, the side close to the blade of the blocking piece is fixedly connected with a baffle piece, and the baffle piece directly acts on the blade from the two sides, so that the blade is reinforced, the blade can better resist wind resistance, and the opening and closing of the blade is more stable.

[0014] 2. The fixing mechanism is arranged, when the screw rod rotates, the top end of the lead screw fixedly connected with the blocking rod moves up and down, the blade is closed, at this time, the blocking rod is retracted, when the blade is opened, the blocking rod is extended, the opening state of the blade is fixed, and the stability effect of the reinforcing assembly on the opening and closing of the blade is further improved. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 is a whole structure schematic view of the utility model;

[0016] Figure 2 is an execution mechanism structure schematic view of the utility model;

[0017] Figure 3 is a linkage assembly structure schematic view of the utility model;

[0018] Figure 4 is a reinforcing assembly structure schematic view of the utility model;

[0019] Figure 5 is a fixed mechanism structure schematic view of the utility model.

[0020] The figure mark is: 1, valve body;101, flange;102, pad strip;2, execution mechanism;201, rod assembly;2011, runner;2012, long rod;2013, screw;2014, conical gear one;202, shell;203, linkage assembly;2031, spring;2032, gear three;2033, jamming rod;2034, pull ring;2035, short rod one;204, reinforcing assembly;2041, fixed sleeve;2042, reinforcing ring;2043, connecting rod;2044, rotating ring;2045, reinforcing rod;2046, blocking block;2047, baffle;205, automatic closing assembly;2051, connecting rod;2052, fuse;2053, fixed rod;2054, fusible metal;3, blade;4, fixed mechanism;401, conical gear two;402, short rod two;403, gear four;404, screw;405, blocking rod;406, fixed seat;407, cover. DETAILED DESCRIPTION

[0021] The technical scheme in the utility model will be described clearly and completely below in combination with the drawings in the utility model, and additionally, the form of each structure recorded in the following implementation is only an example, and the ventilation fireproof valve for rail transit involved in the utility model is not limited to each structure recorded in the following implementation, and all other implementation obtained by the ordinary skilled in the art without making creative labor belongs to the range of protection of the utility model.

[0022] REFERENCE Figures 1 to 5The utility model provides a kind of ventilation fire damper for rail transit, including valve body 1, still include: actuating mechanism 2, vane 3, fixed mechanism 4, the top of valve body 1 is provided with actuating mechanism 2, the middle part of actuating mechanism 2 is fixedly connected with vane 3, wherein vane 3 is arranged inside valve body 1, the bottom of actuating mechanism 2 movably connects with fixed mechanism 4, actuating mechanism 2 includes rod assembly 201 and shell 202, wherein rod assembly 201 includes rotating wheel 2011 located at top, rotating wheel 2011 is fixedly connected with long pole 2012 inside, shell 202 is provided with linkage assembly 203, reinforcing assembly 204 and automatic closure assembly 205 inside, wherein linkage assembly 203 and reinforcing assembly 204 are sequentially arranged from top to bottom in the side of long pole 2012, reinforcing assembly 204 includes fixed sleeve 2041 fixedly connected in the side of long pole 2012, fixed sleeve 2041 is fixedly connected with reinforcing ring 2042 in the side, reinforcing ring 2042 is fixedly connected with connecting rod 2043 in the bottom, connecting rod 2043 is fixedly connected with rotating ring 2044 in the bottom, wherein the edge of rotating ring 2044 is movably connected with the top of valve body 1, rotating ring 2044 is fixedly connected with reinforcing rod 2045 in the bottom, reinforcing rod 2045 is arranged in the both sides of vane 3.

[0023] Wherein, the lower part of reinforcing rod 2045 is fixedly connected with two groups of blocking blocks 2046, blocking block 2046 is fixedly connected with baffle 2047 on the side close to vane 3, wherein the side plane of baffle 2047 is larger than the side plane area of blocking block 2046, increases its contact area with vane 3, so that the stress surface is larger, and the fixing effect of baffle 2047 on vane is better.

[0024] Wherein, the side of long pole 2012 is sleeved with spring 2031, the bottom of spring 2031 is fixedly connected with gear three 2032, and the top is fixedly connected with the inside top of shell 202, the inside of gear three 2032 is fixedly connected with the side of long pole 2012, the side of gear three 2032 is provided with clamping blocking rod 2033, one end of clamping blocking rod 2033 is provided with clamping block, and is engaged with the edge of gear three 2032, one end of clamping blocking rod 2033 fixedly connected with pull ring 2034, and the other end is movably connected with the top of valve body 1 through short rod one 2035.

[0025] Spring 2031 is in torsion state under vane opening state, at this time, pull pull ring 2034, the locking state of clamping blocking rod 2033 to gear three 2032 is released, spring 2031 rotates, and vane 3 is closed.

[0026] The bottom of one end of the clamping block is fixedly connected with a connecting rod 2051, one end of the connecting rod 2051 is arranged in the inside of a fuse 2052, the side of the fuse 2052 is arranged with a contact electrode, the electrode ring is arranged with a fixed rod 2053, the bottom end of the fixed rod 2053 is fixedly connected with a fusible metal 2054, and the fusible metal 2054 is arranged in the inside of the valve body 1.

[0027] The flanges 101 are arranged at the two side openings of the pipeline of the valve body 1 and are used for being connected with the ventilation pipeline, and the gasket strips 102 are fixedly connected with the inside of the valve body 1, and the gasket strips 102 can form a seal with the two side edges of the blade 3 when the blade 3 is closed.

[0028] Referring to Figure 4 and Figure 5 The bottom end of the long rod 2012 is fixedly connected with a screw rod 2013, the side of the screw rod 2013 is fixedly connected with the inside of the blade 3, and the bottom end of the screw rod 2013 is fixedly connected with a conical gear one 2014.

[0029] The edge of the conical gear one 2014 is engaged with a conical gear two 401, the side of the conical gear two 401 is fixedly connected with a gear four 403 through a short rod two 402, the edge of the gear four 403 is engaged with a lead screw 404, the top end of the lead screw 404 is fixedly connected with a blocking rod 405, the side of the blocking rod 405 is movably connected with the bottom end of the valve body 1, in addition, the side of the short rod two 402 is movably connected with the inside bottom end of a cover 407 through a fixed seat 406, and the top end of the cover 407 is fixedly connected with the bottom end of the valve body 1.

[0030] The screw rod 2013 rotates to drive the conical gear one 2014 to rotate, and then the conical gear two 401 is driven to rotate, so that the gear four 403 rotates, and the lead screw 404 engaged with the gear four 403 moves up and down, so that when the screw rod 2013 rotates, the blocking rod 405 fixedly connected with the top end of the lead screw 404 moves up and down, the blade is closed, the blocking rod 405 is retracted, the blade is opened, and the blocking rod 405 is extended to fix the opening state of the blade.

[0031] The working principle of the utility model is: the ventilation fireproof valve for rail transit provided by the utility model, the blade 3 is in a normal open state, when a fire occurs, the temperature in the pipeline reaches the melting temperature of the fusible metal 2054, the fusible metal 2054 melts, the fuse 2052 is triggered through the contact electrode, the fuse 2052 pulls the clamping rod 2033 through the connecting rod 2051, so that the spring 2031 in the torsion state quickly rotates back, and the blade is closed through the linkage assembly 203.

[0032] The above merely describes preferred embodiments of the present application and is not intended to limit the present application, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A ventilation fire damper for rail transport, comprising a valve body (1), characterized in that, Also include: The top of the valve body (1) is provided with an actuator (2), the middle of the actuator (2) is fixedly connected with the blade (3), wherein the blade (3) is arranged in the inside of the valve body (1), the bottom of the actuator (2) is movably connected with the fixed mechanism (4), the actuator (2) includes a rod assembly (201) and a shell (202), wherein the rod assembly (201) includes a runner (2011) at the top, the inside of the runner (2011) is fixedly connected with a long rod (2012), the inside of the shell (202) is provided with a linkage assembly (203), a reinforcing assembly (204) and an automatic closing assembly (205), wherein the linkage assembly (203) and the reinforcing assembly (204) are arranged in turn from top to bottom on the side of the long rod (2012), the reinforcing assembly (204) includes a fixed sleeve (2041) fixedly connected on the side of the long rod (2012), the side of the fixed sleeve (2041) is fixedly connected with a reinforcing ring (2042), the bottom of the reinforcing ring (2042) is fixedly connected with a connecting rod (2043), the bottom of the connecting rod (2043) is fixedly connected with a rotating ring (2044), wherein the edge of the rotating ring (2044) is movably connected with the top of the valve body (1), the bottom of the rotating ring (2044) is fixedly connected with a reinforcing rod (2045), the reinforcing rod (2045) is arranged on both sides of the blade (3).

2. The ventilation fire damper for rail transit according to claim 1, characterized in that: The lower part of the reinforcing rod (2045) is fixedly connected with two groups of blocking blocks (2046), the side of the blocking block (2046) close to the blade (3) is fixedly connected with a baffle (2047), wherein the side plane of the baffle (2047) is larger than the side plane area of the blocking block (2046).

3. The ventilation fire damper according to claim 1, wherein: The side of the long rod (2012) is sleeved with a spring (2031), the bottom of the spring (2031) is fixedly connected with a gear three (2032), the top of the gear three (2032) is fixedly connected with the inside top of the shell (202), the inside of the gear three (2032) is fixedly connected with the side of the long rod (2012), the side of the gear three (2032) is provided with a blocking rod (2033), one end of the blocking rod (2033) is provided with a clamping block, which is clamped with the edge of the gear three (2032), the end of the blocking rod (2033) provided with the clamping block is fixedly connected with a pull ring (2034), the other end of the pull ring (2034) is movably connected with the top of the valve body (1) through a short rod one (2035).

4. The ventilation fire damper according to claim 3, wherein: The bottom of the end of the blocking rod (2033) provided with the clamping block is fixedly connected with a connecting rod (2051), one end of the connecting rod (2051) is arranged in the inside of a fuse (2052), wherein the side of the fuse (2052) is provided with a contact electrode, the inside of the electrode ring is provided with a fixed rod (2053), the bottom of the fixed rod (2053) is fixedly connected with a fusible metal (2054), and the fusible metal (2054) is arranged in the inside of the valve body (1).

5. The ventilation fire damper according to claim 1, wherein: The flange (101) is arranged at the opening of the pipeline of the valve body (1) for connecting with the ventilation pipeline, and the gasket (102) is fixedly connected to the inside of the valve body (1), which can form a seal with the two side edges of the blade (3) when the blade (3) is closed.

6. The ventilation fire damper according to claim 1, wherein: The bottom end of the long rod (2012) is fixedly connected with the screw rod (2013), the side surface of the screw rod (2013) is fixedly connected with the inside of the blade (3), and the bottom end of the screw rod (2013) is fixedly connected with the conical gear one (2014).

7. The ventilation fire damper according to claim 6, characterized in that: The edge of the conical gear one (2014) is engaged with the conical gear two (401), the side surface of the conical gear two (401) is fixedly connected with the gear four (403) through the short rod two (402), the edge of the gear four (403) is engaged with the screw rod (404), the top end of the screw rod (404) is fixedly connected with the stop rod (405), the side surface of the stop rod (405) is movably connected with the bottom end of the valve body (1), in addition, the side surface of the short rod two (402) is movably connected with the inside bottom end of the cover shell (407) through the fixing seat (406), and the top end of the cover shell (407) is fixedly connected with the bottom end of the valve body (1).

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