CN112148062B

CN112148062B - Control handle for fire-fighting equipment

Info

Publication number: CN112148062B
Application number: CN202011010416.3A
Authority: CN
Inventors: 季维刚
Original assignee: Taizhou Volla Fire Fighting Equipment Co ltd
Current assignee: Taizhou Volla Fire Fighting Equipment Co ltd
Priority date: 2020-09-23
Filing date: 2020-09-23
Publication date: 2022-06-10
Anticipated expiration: 2040-09-23
Also published as: CN112148062A

Abstract

The invention discloses a control handle for a fire-fighting apparatus, which relates to the technical field of parts for the fire-fighting apparatus, and adopts the technical scheme that: the fire fighting equipment comprises a main body and a control core, wherein the control core is rotatably arranged in the main body and used for controlling the on-off of the main body, and a positioning groove is formed in the main body; the control handle comprises a mounting handle, a positioning piece and a reset assembly, the mounting handle is provided with a connecting part and a free end, the connecting part of the mounting handle is connected with the control core, and the free end of the mounting handle can rotate around the connecting part; the positioning piece is movably arranged on the mounting handle, and can extend into the positioning groove when the control core rotates to a closed state; resetting the component; the positioning piece is arranged on the mounting handle and used for pushing the positioning piece into the positioning groove; an unlocking piece is arranged on the mounting handle and used for controlling the positioning piece to be separated from the positioning groove. The unlocking piece on the mounting handle drives the positioning piece to be separated from the positioning groove, and the free end of the mounting handle can rotate, so that the fire-fighting equipment is opened.

Description

Control handle for fire-fighting equipment

Technical Field

The invention relates to the technical field of parts for fire-fighting equipment, in particular to a control handle for fire-fighting equipment.

Background

The hose is connected to different fire-fighting apparatuses in the fire-fighting work, so that different fire rescue purposes can be realized, the hose is connected to the water gun from a fire truck or a fire hydrant, and the spraying direction of fire-fighting liquid in the hose can be changed by changing the position of the water gun.

In order to save the connection time of water belts and increase the rescue efficiency, the fire-fighting liquid in the fire fighting truck is generally connected to a water separator through a main water belt, and the liquid in the main water belt is divided into a plurality of secondary water belts through the water separator; due to the limitation of the structure of the water gun, the water gun cannot be used for long-distance or high-altitude rescue, and when high-altitude or long-distance fire fighting is carried out, a fire water monitor is required to be adopted to realize long-distance transportation of fire-fighting liquid.

However, fire fighting liquids circulating in fire fighting hoses and common fire fighting equipment such as a water distributor and a fire fighting water monitor are high-pressure liquids which circulate rapidly, and when the fire fighting equipment such as the water distributor and the fire fighting water monitor is opened and closed, the water pressure borne by the fire fighting equipment is high, so that the fire fighting equipment is easy to displace relative to the ground, and the fire fighting equipment is damaged or bounces to hurt people. Therefore, the opening and closing of the fire fighting equipment are required to be completed by professional fire fighters, and the fire fighting equipment is prevented from being mistakenly opened under the unattended state due to the influence of internal water pressure or external sundries.

The applicant finds that the existing market lacks a control handle convenient for an operator to use, so that the opening and closing of the fire fighting equipment are complex.

Disclosure of Invention

Aiming at the defects in the prior art, the invention aims to provide a control handle for a fire-fighting apparatus, which has the advantage of facilitating an operator to control the opening and closing of the fire-fighting apparatus.

The technical purpose of the invention is realized by the following technical scheme: a control handle for a fire fighting apparatus comprises a main body and a control core, wherein the control core is rotatably arranged in the main body and is used for controlling the on-off of the main body, and a positioning groove is formed in the main body; the control handle comprises a mounting handle, a positioning piece and a reset assembly, the mounting handle is provided with a connecting part and a free end, the connecting part of the mounting handle is connected with the control core, and the free end of the mounting handle can rotate around the connecting part; the positioning piece is movably arranged on the mounting handle, and when the control core rotates to a closed state, the positioning piece can extend into the positioning groove; the reset assembly is arranged on the mounting handle and used for pushing the positioning piece into the positioning groove; be provided with the deblocking piece on the installation handle, the deblocking piece includes driving lever and slider one, the driving lever with the outer end of setting element is connected, the driving lever has support arm and power arm, the power arm is followed the length direction of installation handle sets up, slider one with the installation handle slides and connects, just slider one is close to one side of setting element is provided with the unblock contact, the unblock contact can with the power arm pastes and leans on and promotes the power arm is kept away from the installation handle, thereby control the setting element breaks away from the constant head tank.

Through the technical scheme, the mounting handle is fixedly connected with the control core in the fire-fighting equipment, and the control core is driven to rotate by rotating the free end of the mounting handle, so that the main body of the fire-fighting equipment is opened or closed; the mounting handle can drive the positioning piece to rotate, when the mounting handle rotates until the control core is closed, the positioning piece is pushed into the positioning groove by the reset assembly, so that the positioning groove limits the positioning piece, the locking of the mounting handle is completed, and the fire-fighting equipment is prevented from being opened by mistake under the influence of internal water pressure or external sundries; when the control core needs to be opened, the first driving slider slides, so that the unlocking contact can be in contact with the power arm, the power arm is pushed to be away from the installation handle, the positioning piece is connected with the shifting rod, the power arm indirectly drives the positioning piece to be separated from the positioning groove after being away from the installation handle, the installation handle can be rotated, the unlocking of the installation handle is realized, and the free end of the installation handle can be rotated to complete the opening of the fire-fighting equipment.

Preferably, the installation handle is provided with a chute, the chute can be close to the positioning groove, the resetting component comprises a first pre-tightening part arranged in the chute, the positioning part is arranged in the chute in a sliding manner, and the outer end of the positioning part penetrates through the chute and is connected with the unlocking part.

Through the technical scheme, the sliding groove is formed in the mounting handle, the rotating mounting handle can drive the sliding groove and the positioning piece to be close to or far away from the positioning groove, and the first pre-tightening piece is arranged, so that the positioning piece can easily enter the positioning groove under the action of the first pre-tightening piece; the locating piece is connected with the unlocking piece, so that the unlocking piece can drive the locating piece to be separated from the locating groove easily.

Preferably, the reset assembly further comprises an extension block, the extension block is arranged on the mounting handle, and the sliding groove extends towards the extension block.

Through above-mentioned technical scheme, because the spout extends to the extension piece direction, increased the degree of depth of spout, guaranteed that the spout has enough space to hold the pretension piece one, indirectly reduced the thickness of installation handle moreover to manufacturing cost has been reduced.

Preferably, the inner end of the positioning piece is provided with a convex block, the first pre-tightening piece comprises a first spring, the first spring is sleeved on the positioning piece, one end of the first spring abuts against the convex block, and the other end of the first spring abuts against the bottom of the sliding groove.

Through the technical scheme, the first pre-tightening piece is provided with the first spring, so that the positioning piece can easily extend into the positioning groove; and one end of the first spring abuts against the bottom of the sliding groove, and the other end of the first spring abuts against the side face of the convex block, so that the stability of the elastic force of the first spring is ensured, and the working stability of the control handle is improved.

Preferably, perhaps the unlocking part includes gyro wheel, lever, slider two and strand, the gyro wheel rotate set up in on the installation handle, the one end of lever with setting element swing joint, the fulcrum has on the extension piece, the interior terminal surface of lever with the fulcrum contact, just the lever orientation two directions of slider, the other end of lever with the strand is connected, the other end of strand is walked around the gyro wheel and with slider two is connected, slider two move connect in on the installation handle.

Through the technical scheme, one end of the lever is connected with the positioning piece, the other end of the lever is connected with the rope, the other end of the rope is connected to the second sliding block after bypassing the roller, when the second sliding block slides, the free end of the lever can be driven to be close to the installation handle, the other end of the lever extracts the positioning piece from the positioning groove, and unlocking of the installation handle is achieved.

Preferably, the supporting arm is provided with a bending section which can tightly abut against the side wall of the mounting handle; the power arm is provided with an arc surface section which can be tightly propped against the unlocking contact.

Through the technical scheme, the length of the supporting arm is indirectly reduced due to the arrangement of the bending section on the supporting arm, so that the supporting arm can contact with the side wall of the mounting handle only with a short length, and the positioning piece can be easily separated from the positioning groove when the power arm is far away from the mounting handle by taking the side wall of the mounting handle as a fulcrum; the arrangement of the arc surface section on the power arm enables the unlocking contact to easily push the power arm away from the mounting handle in the sliding process of the arc surface section.

Preferably, a first guide groove is formed in the mounting handle, a handrail is arranged at the free end of the mounting handle, and a handle is arranged on the first sliding block; the inner end face of the first sliding block is provided with a guide portion, the guide portion is arranged in the first guide groove in a sliding mode, and the handle can be close to or far away from the handrail.

Through the technical scheme, when the handle on the first sliding block slides towards the armrest, the unlocking of the installation handle can be realized, and the installation handle can be unlocked by a single hand of a user conveniently.

Preferably, the mounting handle is provided with a reset hole communicated with the first guide groove, a second pre-tightening piece is arranged in the reset hole, one end of the second pre-tightening piece is abutted against the hole wall of the reset hole, the other end of the second pre-tightening piece is abutted against the guide part, and the second pre-tightening piece can push the first sliding block to reset.

Through the technical scheme, the second pre-tightening piece is arranged, so that the second sliding block can be normally reset under the normal condition or when the handle is loosened.

Preferably, the outer end face of the mounting handle is provided with a second guide groove communicated with the first guide groove, and the second guide groove is used for allowing the first sliding block to slide.

Through above-mentioned technical scheme, slider one slides in the spout, has further increased the stability of sliding one.

Preferably, the inner end face of the mounting handle is provided with a cover plate, the cover plate is used for covering the reset hole, the cover plate is penetrated through the guide groove, and the guide groove I on the cover plate is used for allowing the guide part to slide.

Through the technical scheme, the arrangement of the cover plate enables the second pre-tightening piece in the reset groove to be difficult to fall off, and therefore the second pre-tightening piece can be stably reset with the first sliding block. Meanwhile, the first guide groove is arranged, and the sliding stability of the first sliding block is further improved.

In summary, compared with the prior art, the beneficial effects of the invention are as follows:

1. the control core can be driven to rotate by rotating the mounting handle, and the positioning groove is matched with the positioning piece to limit the mounting handle, so that the opening and closing of the fire fighting equipment can be effectively controlled, and the control handle is convenient for a user to control;

2. in the process that the sliding block slides towards the armrest direction, the first sliding block can drive the power arm of the shifting rod to be far away from the mounting handle, and the positioning piece is separated from the positioning groove, so that the unlocking of the mounting handle is completed, and a user can conveniently unlock the mounting handle with one hand;

3. the second pre-tightening piece facilitates the positioning piece to stretch into the positioning groove, and the locking of the installation handle is effectively guaranteed.

Drawings

FIG. 1 is a schematic diagram of an exploded structure according to the first embodiment;

FIG. 2 is a schematic external structural view according to the first embodiment;

FIG. 3 is a schematic external view of a control handle according to an embodiment;

FIG. 4 is another side view of FIG. 3;

FIG. 5 is a schematic view of a middle control handle according to the first embodiment;

FIG. 6 is another schematic view of the first embodiment in full section;

FIG. 7 is a schematic overall external structure diagram according to the first embodiment;

FIG. 8 is a schematic view of the second embodiment in full section.

Reference numerals: 100. a fire-fighting apparatus; 110. a main body; 111. positioning a groove; 112. a track groove; 113. a guide slope; 120. a control core; 200. a control handle; 300. a handle is installed; 310. a connecting portion; 320. a chute; 330. a first guide groove; 340. a handrail; 350. a reset hole; 351. a second preload piece; 352. a second spring; 360. a second guide groove; 370. a cover plate; 400. a positioning member; 410. a bump; 500. a reset assembly; 510. a first pre-tightening piece; 511. a first spring; 520. a lengthening block; 521. a fulcrum; 600. unlocking the lock; 610. a deflector rod; 611. a support arm; 6111. bending the section; 612. a power arm; 6121. a cambered surface section; 620. a first sliding block; 621. unlocking the contacts; 622. a handle; 623. a guide portion; 6231. a sheath; 6232. fastening a bolt; 630. a roller; 640. a lever; 650. a second sliding block; 660. a rope is twisted; 700. a connecting head.

Detailed Description

In the description of the present invention, it should be noted that the terms "upper", "lower", "inside", "outside", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. In addition, the fire-fighting apparatus comprises common fire-fighting equipment such as a fire-fighting water monitor, a fire-fighting water distributor, a fire-fighting joint and a fire-fighting lance.

The present invention will be described in further detail with reference to the accompanying drawings.

The first embodiment is as follows:

as shown in fig. 1 to 7, a fire fighting apparatus 100 includes a main body 110 and a control core 120, the main body 110 has an inlet flow passage and an outlet flow passage, the control core 120 is preferably a ball core, the control core 120 is rotatably disposed in the main body 110 and is used for controlling the on/off of the main body 110, a positioning groove 111 and a track groove 112 are formed in an outer wall of the main body 110, the positioning groove 111 is formed in the track groove 112, and a guide inclined surface 113 is disposed at a bottom of the track groove 112;

the control handle 200 comprises a mounting handle 300, a positioning member 400 and a reset assembly 500, the mounting handle 300 is provided with a connecting part 310 and a free end, the connecting part 310 of the mounting handle 300 is connected with the control core 120, preferably, the connecting part 310 of the mounting handle 300 is connected with the control core 120 through a connector 700, namely, the connector 700 is rotatably arranged on the main body 110, one end of the connector 700 is fixed with the mounting handle 300 through a bolt, the other end of the connector 700 is inserted into the control core 120, and the free end of the mounting handle 300 can rotate around the connecting part 310; the positioning member 400 is movably disposed on the mounting handle 300, and when the control core 120 rotates to the closed state, the positioning member 400 can extend into the positioning groove 111; the reset assembly 500 is disposed on the mounting handle 300 and is used for pushing the positioning element 400 into the positioning groove 111; the mounting handle 300 is provided with an unlocking member 600, and the unlocking member 600 is used for controlling the positioning member 400 to be separated from the positioning groove 111.

The sliding groove 320 is formed in the mounting handle 300, the sliding groove 320 can be close to the positioning groove 111, the resetting assembly 500 comprises a first preload part 510 and an extension block 520, the first preload part 510 is arranged in the sliding groove 320, the positioning part 400 is arranged in the sliding groove 320 in a sliding manner, and the outer end of the positioning part 400 penetrates through the sliding groove 320 and is connected with the unlocking part 600.

The extension block 520 is disposed on the mounting handle 300, and the sliding groove 320 extends toward the extension block 520. The extension block 520 may be connected to the outer end surface of the mounting shank 300 by a snap or bolt, or may be integrally formed with the mounting shank 300.

The inner end of the positioning member 400 has a protrusion 410, the first pre-tightening member 510 includes a first spring 511, the first spring 511 is disposed on the positioning member 400, one end of the first spring 511 abuts against the protrusion 410, and the other end of the first spring 511 abuts against the bottom of the sliding groove 320.

As shown in fig. 6, as another alternative, the first spring 511 may be directly disposed outside the sliding slot 320, that is, one end of the first spring 511 abuts against the inner end surface of the mounting shaft 300, and the other end of the first spring 511 abuts against the side surface of the protrusion 410 close to the mounting shaft 300. Alternatively, the positioning element 400 may slide in the positioning groove 111 normally.

Preferably, the unlocking member 600 comprises a shifting lever 610 and a first sliding block 620, the shifting lever 610 is hinged to the outer end of the positioning member 400, the shifting lever 610 has a support arm 611 and a power arm 612, the support arm 611 has a bending section 6111, and the end of the bending section 6111 can abut against the side wall of the mounting handle 300; the power arm 612 is arranged along the length direction of the mounting handle 300, the power arm 612 has an arc surface section 6121, and the arc surface section 6121 faces the outer end face of the mounting handle 300. The first sliding block 620 is connected with the mounting handle 300 in a sliding mode, an unlocking contact 621 is arranged on one side, close to the positioning piece 400, of the first sliding block 620, and the unlocking contact 621 can abut against the arc-shaped section 6121 and push the power arm 612 to be far away from the mounting handle 300.

A first guide groove 330 is formed in the mounting handle 300, and a handrail 340 is arranged at the free end of the mounting handle 300; one end of the first slider 620 close to the armrest 340 is provided with a handle 622, the inner end face of the first slider 620 is provided with a guide portion 623, the guide portion 623 is slidably arranged in the first guide groove 330, and the handle 622 can be close to or far away from the armrest 340.

The mounting handle 300 is provided with a reset hole 350 communicated with the first guide groove 330, a second pre-tightening piece 351 is arranged in the reset hole 350, one end of the second pre-tightening piece 351 abuts against the hole wall of the reset hole 350, the other end of the second pre-tightening piece 351 abuts against the guide portion 623, and the second pre-tightening piece 351 can push the first sliding block 620 to reset.

Preferably, a cover plate 370 is connected to the inner end surface of the mounting handle 300 through a screw, the cover plate 370 can cover the reset hole 350, and the cover plate 370 is penetrated by the first guide groove 330; the guide portion 623 comprises a sheath 6231 and a fastening bolt 6232, the sheath 6231 is sleeved on the outer wall of the fastening bolt 6232, and the fastening bolt 6232 passes through the first guide slot 330 on the cover plate 370 and is in threaded connection or welded fixation with the first slider 620; the second preload member 351 is preferably a second spring 352, one end of the second spring 352 abuts against the hole wall of the reset hole 350, and the other end of the second spring 352 abuts against the outer wall of the sheath 6231.

Preferably, the outer end surface of the mounting handle 300 is provided with a second guide groove 360 communicated with the first guide groove 330, and the second guide groove 360 is used for the first sliding block 620 to slide.

The working principle of the control handle for the fire fighting equipment is as follows:

normally, the fire apparatus 100 is in a closed state, that is, the control core 120 is closed, and the inner end of the positioning member 400 extends into the positioning groove 111 under the elastic action of the first spring 511, and the positioning groove 111 is limited to the positioning member 400, so that the installation handle 300 is indirectly limited, when the unlocking member 600 does not separate the positioning member 400 from the positioning groove 111, the installation handle 300 cannot rotate, and the control core 120 is ensured not to be opened.

When the control core 120 needs to be opened, a user holds the handrail 340 with one hand, and hooks the handle 622 with a part of fingers, and hooks the handle 622 with the direction of the handrail 340, so that the first slider 620 is close to the handrail 340, and the unlocking contact 621 on the first slider 620 pushes the arc-shaped section 6121 on the power arm 612 to be away from the installation handle 300, because the end of the bending section 6111 on the support arm 611 is tightly abutted to the outer end face of the installation handle 300, the power arm 612 is away from the installation handle 300, and the positioning element 400 can be driven to be separated from the positioning groove 111, thereby unlocking the installation handle 300.

After the installation handle 300 is unlocked, the user applies an external force to the armrest 340, so that the free end of the installation handle 300 can be driven to rotate around the connecting portion 310, and meanwhile, the control core 120 is driven to rotate, so that the control core 120 is opened.

After the mounting handle 300 is unlocked and the control core 120 is opened, the user can release the handle 622, the second spring 352 pushes the guide portion 623 away from the handle 622, that is, the first slider 620 is reset by the second spring 352, and simultaneously the power arm 612 is reset along with the movement of the unlocking contact 621 on the first slider 620, and the inner end of the positioning member 400 is pushed into the track groove 112 by the first spring 511.

When the fire fighting equipment 100 needs to be closed, a user can directly push the handrail 340, so that the installation handle 300 swings towards the positioning groove 111, the positioning member 400 slides in the track groove 112, the inner end of the positioning member 400 contacts with the guide inclined plane 113, the positioning member 400 slides along the guide inclined plane 113 along with the rotation of the installation handle 300, and when the control core 120 rotates to a closed state, the positioning member 400 directly extends into the positioning groove 111, so that the installation handle 300 is locked.

Example two:

the difference between the second embodiment and the first embodiment is that: as shown in fig. 8, the unlocking member 600 includes a roller 630, a lever 640, a second slider 650 and a second cable 660, the roller 630 is rotatably disposed on the mounting handle 300, one end of the lever 640 is movably connected to the positioning member 400, the extension block 520 has a fulcrum 521, an inner end surface of the lever 640 contacts the fulcrum 521, the lever 640 faces the second slider 650, the other end of the lever 640 is connected to the second cable 660, the other end of the second cable 660 passes around the roller 630 and is connected to the second slider 650, and the second slider 650 is movably connected to the mounting handle 300.

The rope 660 is preferably a steel rope, and may be a soft rope such as a nylon rope.

The above description is intended to be illustrative of the present invention and not to limit the scope of the invention, which is defined by the claims appended hereto.

Claims

1. A fire fighting apparatus (100) comprises a main body (110) and a control core (120), wherein the control core (120) is rotatably arranged in the main body (110) and used for controlling the on-off of the main body (110), and is characterized in that: the main body (110) is provided with a positioning groove (111); the control handle (200) comprises a mounting handle (300), a positioning piece (400) and a reset assembly (500), wherein the mounting handle (300) is provided with a connecting part (310) and a free end, the connecting part (310) of the mounting handle (300) is connected with the control core (120), and the free end of the mounting handle (300) can rotate around the connecting part (310); the positioning piece (400) is movably arranged on the mounting handle (300), and when the control core (120) rotates to a closed state, the positioning piece (400) can extend into the positioning groove (111); the resetting assembly (500) is arranged on the mounting handle (300) and used for pushing the positioning piece (400) into the positioning groove (111); be provided with unlocking piece (600) on installation handle (300), unlocking piece (600) include driving lever (610) and slider (620), driving lever (610) with the outer end of setting element (400) is connected, driving lever (610) have support arm (611) and power arm (612), power arm (612) are followed the length direction setting of installation handle (300), slider (620) with installation handle (300) slide and connect, just slider (620) are close to one side of setting element (400) is provided with unblock contact (621), unblock contact (621) can with power arm (612) paste and push installation handle (300) are kept away from in power arm (612), thereby control setting element (400) break away from constant head tank (111).

2. A control handle for a fire apparatus as defined in claim 1, wherein: the installation handle (300) is provided with a sliding groove (320), the sliding groove (320) can be close to the positioning groove (111), the resetting component (500) comprises a first pre-tightening part (510) arranged in the sliding groove (320), the positioning part (400) is arranged in the sliding groove (320) in a sliding manner, and the outer end of the positioning part (400) penetrates through the sliding groove (320) and is connected with the unlocking part (600).

3. A control handle for a fire apparatus as defined in claim 2, wherein: the reset assembly (500) further comprises an extension block (520), the extension block (520) is arranged on the mounting handle (300), and the sliding groove (320) extends towards the extension block (520).

4. A control handle for a fire fighting device as defined in claim 2 or 3, wherein: the inner end of the positioning piece (400) is provided with a convex block (410), the first pre-tightening piece (510) comprises a first spring (511), the first spring (511) is sleeved on the positioning piece (400), one end of the first spring (511) is abutted against the convex block (410), and the other end of the first spring (511) is abutted against the bottom of the sliding groove (320).

5. A control handle for a fire apparatus as defined in claim 3, wherein: or unlocking piece (600) includes gyro wheel (630), lever (640), two sliders (650) and noose (660), gyro wheel (630) rotate set up in on installation handle (300), the one end of lever (640) with setting element (400) swing joint, extension piece (520) are gone up and are had fulcrum (521), the interior terminal surface of lever (640) with fulcrum (521) contact, just lever (640) orientation two sliders (650) directions, the other end of lever (640) with noose (660) are connected, the other end of noose (660) is walked around gyro wheel (630) and with two sliders (650) are connected, two sliders (650) move connect in on installation handle (300).

6. A control handle for a fire apparatus as defined in claim 1, wherein: the supporting arm (611) is provided with a bending section (6111), and the bending section (6111) can abut against the side wall of the mounting handle (300); the power arm (612) is provided with an arc-shaped section (6121), and the arc-shaped section (6121) can be abutted against the unlocking contact (621).

7. A control handle for a fire apparatus as defined in claim 1, wherein: a first guide groove (330) is formed in the mounting handle (300), a handrail (340) is arranged at the free end of the mounting handle (300), and a handle (622) is arranged on the first sliding block (620); the inner end face of the first sliding block (620) is provided with a guide portion (623), the guide portion (623) is arranged in the first guide groove (330) in a sliding mode, and the handle (622) can be close to or far away from the handrail (340).

8. A control handle for a fire apparatus as defined in claim 7, wherein: the mounting handle (300) is provided with a resetting hole (350) communicated with the first guide groove (330), a second pre-tightening piece (351) is arranged in the resetting hole (350), one end of the second pre-tightening piece (351) abuts against the hole wall of the resetting hole (350), the other end of the second pre-tightening piece (351) abuts against the guide portion (623), and the second pre-tightening piece (351) can push the first sliding block (620) to reset.

9. A control handle for a fire apparatus as defined in claim 7, wherein: the outer end face of the mounting handle (300) is provided with a second guide groove (360) communicated with the first guide groove (330), and the second guide groove (360) is used for the sliding of the first sliding block (620).

10. A control handle for a fire apparatus as defined in claim 8, wherein: the inner end face of the mounting handle (300) is provided with a cover plate (370), the cover plate (370) is used for covering the reset hole (350), the cover plate (370) is penetrated through the first guide groove (330), and the first guide groove (330) on the cover plate (370) is used for allowing the guide part (623) to slide.