CN216387903U

CN216387903U - Be applied to emergency device's area lock operating handle of assembly of being convenient for

Info

Publication number: CN216387903U
Application number: CN202220056390.4U
Authority: CN
Inventors: 周立敏
Original assignee: Zhejiang Changji Electrical Technology Co ltd
Current assignee: Zhejiang Changji Electrical Technology Co ltd
Priority date: 2022-01-07
Filing date: 2022-01-07
Publication date: 2022-04-26
Anticipated expiration: 2032-01-07

Abstract

The utility model provides an operating handle with a lock, which is applied to an emergency device and is convenient to assemble, belongs to the technical field of operating handles, which comprises a base and a transmission rod, wherein one side of the base is provided with a handle, the other side of the base is provided with a guide piece, the handle can rotate relative to the base, the handle is provided with a slot for inserting the transmission rod, the handle is provided with a switch-on position and a switch-off position, the switching-on position is the position of the handle when the emergency device is in a switching-on state, the switching-off position is the position of the handle when the emergency device is in a switching-off state, the guide piece is provided with a limiting mechanism which is used for enabling the transmission rod to be only inserted into the slot and not to be pulled out of the slot when the handle is positioned at the switching-on position, when the handle is in the opening position, the transmission rod can be freely inserted into or pulled out of the slot; by adopting the structure, the handle is prevented from being lost in the power utilization process, and the power utilization safety can be improved.

Description

Be applied to emergency device's area lock operating handle of assembly of being convenient for

Technical Field

The utility model relates to the technical field of operating handles, in particular to an operating handle with a lock, which is applied to an emergency device and is convenient to assemble.

Background

The emergency starting cabinet of the fire-fighting machinery is in critical connection, and when the control circuit breaks down and the main power supply is still intact, the equipment of the fire-fighting pump is forcibly started.

The cabinet body outside of fire-fighting machinery emergency starting cabinet often is provided with operating handle, and this operating handle needs appointed professional to operate at specific moment, nevertheless because traditional operating handle does not possess the locking function, and non-appointed personnel also can carry out the maloperation, easily arouses danger and loss of property.

Generally, an operating handle is connected with a transmission rod on an emergency device in a cabinet body, but a central shaft of the transmission rod on the emergency device and a central shaft of an operating handle slot generally have certain deviation, so that the transmission rod is difficult to penetrate through a through hole in the cabinet door to form inserting fit with the handle slot, therefore, an operator needs to readjust the installation position of the emergency device, the operation is very complicated, and time and labor are wasted; in addition, the existing operating handle needs to be improved in terms of electrical safety.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the defects and shortcomings of the prior art and provide an operating handle with a lock, which is applied to an emergency device and is convenient to assemble.

The technical scheme adopted by the utility model is as follows: the convenient-to-assemble operating handle with the lock for the emergency device comprises a base and a transmission rod used for connecting the operating handle and the emergency device, wherein a handle is arranged on one side of the base, a guide piece is arranged on the other side of the base, the handle can rotate relative to the base, a slot for inserting the transmission rod is formed in the handle, the handle is provided with a switching-on position and a switching-off position, the switching-on position is the position where the handle is located when the emergency device is in a switching-on state, the switching-off position is the position where the handle is located when the emergency device is in a switching-off state, a limiting mechanism is arranged on the guide piece, and the limiting mechanism is used for enabling the transmission rod to be only inserted into the slot and not to be pulled out of the slot when the handle is in the switching-off position and enabling the transmission rod to be freely inserted into or pulled out of the slot when the handle is in the switching-off position.

The guide piece is used for guiding the transmission rod to be connected with the slot; the guide piece is including being used for the connecting portion be connected with the base, connecting portion middle part is seted up with the corresponding interface in rotatory hole, be equipped with the butt joint boss on the connecting portion, set up the guide way that is linked together with the interface on the butt joint boss, guide way is the horn mouth shape of outer big-end-up inside little.

The limiting mechanism comprises a limiting sheet groove, an elastic piece groove and a limiting button groove, the limiting sheet groove, the elastic piece groove and the limiting button groove are arranged on one side, close to the base, of the guide piece, a limiting sheet is arranged in the limiting sheet groove, an elastic piece is arranged in the elastic piece groove, and a limiting button is arranged in the limiting button groove; one side of the limiting piece extends and is provided with a bending part, the bending part is embedded into the elastic piece groove, one side of the elastic piece is abutted to the inner wall of the elastic piece groove, the other side of the elastic piece is abutted to the bending part, and the bending part is not abutted to one side of the elastic piece and is abutted to the limiting button.

The limiting piece is used for partially shielding the slot when the handle is in the switching-on position, so that the transmission rod can only be inserted into the slot and can not be pulled out of the slot, and is used for not shielding the slot when the handle is in the switching-off position, so that the transmission rod can be freely inserted into or pulled out of the slot.

The middle of the limiting piece is provided with a notch, the corresponding side edge of the notch is provided with a bulge, the bulge is embedded into the base and shields the part of the butt joint port, and the butt joint port is used for enabling the transmission rod not to be pulled out of the slot when the handle is positioned at a switch-on position.

And a pressing inclined surface is arranged on one side of the protrusion facing the guide channel and used for pressing the transmission rod to enable the transmission rod to be inserted into the slot when the handle is in a switching-on position.

And the two sides of the limit button are provided with convex blocks used for limiting the limit button, and the convex blocks are abutted against the groove wall of the limit button groove.

The lock also comprises a key lock cylinder and a locking pin;

a handle including a rotating portion and an operating portion;

one end of the rotating part is used as a transmission end and extends into the base, and the other end of the rotating part is used as an operation end and is positioned outside the base;

the slot is arranged on the transmission end;

the operating part is fixed at the operating end and is used for driving the rotating part to rotate;

the base is provided with a rotating hole for embedding the rotating part to form rotating fit;

the edge of the rotating hole is provided with a locking recess;

a key cylinder rotatably provided at the rotating part and rotatable only when a key is inserted;

a locking pin located between the locking recess and the key cylinder and axially movable within the rotating portion;

the key lock cylinder is in linkage fit with the locking pin, and the key lock cylinder has a locking position and an unlocking position, wherein the locking pin is positioned in the locking recess, and the locking position is positioned outside the locking recess;

one end of the transmission rod is connected with the emergency device and used for driving the emergency device to switch off or switch on, and the other end of the transmission rod is connected with the slot;

the butt joint boss is cylindrical, and the guide channel is circular truncated cone-shaped.

The guide channel is provided with first guide parts and is in a cross shape, every two second guide parts are arranged between the first guide parts, and the second guide parts are inwards protruded relative to the first guide parts.

The utility model has the following beneficial effects:

1. the utility model is provided with the limiting mechanism comprising the elastic part, the limiting piece and the limiting button, when the handle is in the brake opening position, the transmission rod can freely enter and exit relative to the slot of the operating handle, when the handle is in the brake closing position, the transmission rod can only be inserted relative to the slot of the operating handle, and the limiting button needs to be pressed when the transmission rod is pulled out.

2. According to the utility model, the key lock cylinder is arranged on the handle, and a designated professional can use a designated key to unlock the handle to operate the handle, so that the danger and loss caused by misoperation are avoided, the locking is reliable, and the operation is more convenient.

3. The emergency device is provided with the guide piece, so that when the operating handle is connected with the transmission rod on the emergency device, the connection fault tolerance rate is improved, when the transmission rod and the slot of the operating handle deviate to some extent, the connection can be formed after the guide piece guides the transmission rod, the emergency device is very convenient to operate, and the emergency device has the advantages of time saving and labor saving.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is within the scope of the present invention for those skilled in the art to obtain other drawings based on the drawings without inventive exercise.

FIG. 1 is a first perspective view of the present invention;

FIG. 2 is an exploded view of the present invention;

FIG. 3 is an exploded view, partially in section, of the present invention;

FIG. 4 is a perspective view of a guide portion of the present invention;

FIG. 5 is a perspective view of a spacing piece of the present invention;

FIG. 6 is a second perspective view of the present invention;

FIG. 7 is a perspective view of the present invention employing a different guide member;

FIG. 8 is a perspective view of the key cylinder and locking pin of the present invention;

FIG. 9 is a perspective view of the base of the present invention;

FIG. 10 is a perspective view of a spacing plate of the present invention;

FIG. 11 is a perspective view of the handle of the present invention and an enlarged view of a portion of the handle;

in the figure, 1-key lock core, 2-handle, 21-rotating part, 211-slot, 212-extrusion inclined plane, 213-strip-shaped groove, 214-sliding hole, 22-operating part, 3-linkage disc, 31-slope, 311-unlocking region, 312-locking region, 4-locking pin, 41-spherical surface, 42-reset step, 43-elastic leg, 44-slider, 45-matching inclined plane, 5-base, 51-rotating hole, 511-locking recess, 52-limiting projection, 6-limiting disc, 61-limiting block, 62-locking hole, 63-connecting hole, 7-guiding piece, 71-connecting part, 711-butt joint, 712-butt joint boss, 713-guiding channel, 7131-first guide part, 7132-second guide part, 8-limit button groove, 81-limit button groove, 82-projection, 9-elastic piece, 91-elastic piece groove, 10-limit piece, 101-limit piece groove, 102-bending part, 103-notch, 104-press inclined plane, 105-bulge.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the accompanying drawings.

It should be noted that all expressions using "first" and "second" in the embodiments of the present invention are used for distinguishing two entities with the same name but different names or different parameters, and it should be noted that "first" and "second" are merely for convenience of description and should not be construed as limitations of the embodiments of the present invention, which are not described in any more detail in the following embodiments.

The terms of direction and position of the present invention, such as "up", "down", "front", "back", "left", "right", "inside", "outside", "top", "bottom", "side", etc., refer to the direction and position of the attached drawings. Accordingly, the use of directional and positional terms is intended to illustrate and understand the present invention and is not intended to limit the scope of the present invention.

As shown in fig. 1 to 11, an embodiment of the present invention is provided:

an operating handle with a lock, which is applied to an emergency device and is convenient to assemble, comprises a base 5 and a transmission rod used for connecting the operating handle and the emergency device, a handle 2 is arranged on one side of the base 5, a guide piece 7 is arranged on the other side of the base, the handle 2 can rotate relative to the base 5, the handle 2 is provided with a slot 211 for inserting the transmission rod, the handle 2 is provided with a switch-on position and a switch-off position, the switching-on position is the position of the handle 2 when the emergency device is in a switching-on state, the switching-off position is the position of the handle 2 when the emergency device is in a switching-off state, the guide piece 7 is provided with a limiting mechanism which is used for enabling the transmission rod to be only inserted into the slot 211 and not to be pulled out of the slot 211 when the handle 2 is at the switching-on position, and the transmission rod can be freely inserted into or pulled out of the slot 211 when the handle 2 is in the opening position.

The limiting mechanism comprises a limiting sheet groove 101, an elastic piece groove 91 and a limiting button groove 81, wherein the limiting sheet groove 101, the elastic piece groove 91 and the limiting button groove 81 are arranged on one side, close to the base 5, of the guide piece 7, a limiting sheet 10 is arranged in the limiting sheet groove 101, an elastic piece 9 is arranged in the elastic piece groove 91, and a limiting button 8 is arranged in the limiting button groove 81; one side of the limiting piece 10 extends and is provided with a bending part 102, the bending part 102 is embedded into the elastic piece groove 91, one side of the elastic piece 9 abuts against the inner wall of the elastic piece groove 91, the other side of the elastic piece abuts against the bending part 102, and the bending part 102 does not abut against one side of the elastic piece 9 and abuts against the limiting button 8.

Further, the limiting piece 10 is used for partially shielding the slot 211 when the handle 2 is at the switch-on position, so that the transmission rod can only be inserted into the slot 211 and cannot be pulled out of the slot 211, and is used for not shielding the slot 211 when the handle 2 is at the switch-off position, so that the transmission rod can be freely inserted into or pulled out of the slot 211; a notch 103 is formed in the middle of the limiting piece 10, a protrusion 105 is formed on a corresponding side of the notch 103, the protrusion 105 is embedded in the base 5 and covers part of the butt joint interface 711, and the notch is used for preventing the transmission rod from being pulled out of the slot 211 when the handle 2 is in the switching-on position; the protrusion 105 is provided with a pressing slope 104 toward the guide channel 713 for pressing the transmission lever to be inserted into the insertion groove 211 when the handle 2 is in the switching-on position.

When the handle 2 is in the brake separating position, the transmission rod can freely pass in and out relative to the slot 211 of the handle 2, and when the handle 2 is in the brake combining position, the transmission rod can only be inserted relative to the slot 211 of the handle 2, and the limit button 8 needs to be pressed when the transmission rod is pulled out, so that the handle is prevented from being lost in the power utilization process by adopting the structure, and the power utilization safety can be improved.

The two sides of the limit button 8 are provided with a bump 82 used for limiting the limit button 8, and the bump 82 is abutted against the groove wall of the limit button groove 81.

Further, the lock also comprises a key lock cylinder 1 and a locking pin 4;

a handle 2, the handle 2 including a rotating portion 21 and an operating portion 22;

a rotating part 21, one end of which is used as a transmission end and extends into the base 5, and the other end of which is used as an operation end and is positioned outside the base 5;

the transmission end is provided with a slot 211 for inserting the transmission rod;

an operation part 22, the operation part 22 is fixed at the operation end and is used for driving the rotation part 21 to rotate;

a base 5, wherein the base 5 is provided with a rotating hole 51 for embedding the rotating part 21 to form a rotating fit;

a rotation hole 51, wherein the edge of the rotation hole 51 is provided with a locking recess 511;

a key cylinder 1 rotatably provided to the rotating part 21 and rotatable upon insertion of a key;

a locking pin 4, said locking pin 4 being located between the locking recess 511 and the key cylinder 1 and moving in the axial direction within the rotating portion 21;

the key lock cylinder 1 is in linkage fit with the locking pin 4, and when the key lock cylinder 1 rotates, the locking pin 4 is located in the locking recess 511 at a locking position and the locking pin 4 is located outside the locking recess 511 at an unlocking position; set up key lock core 1, appointed professional can use appointed key unblock handle can the operating handle to danger and loss because of maloperation brings have been avoided, and, by the locking pin 4 as the locking piece, it is located the locking of rotatory hole 51 under the drive of key lock core 1 when sunken 511, blocks rotatory part 21 rotatory relative rotatory hole 51, forms reliable circumference locking power, and when keeping away from locking sunken 511 under the drive of key lock core 1, then remove circumference locking fast, it is more convenient to operate.

One end of the transmission rod is connected with the emergency device and used for driving the emergency device to be switched off or switched on, and the other end of the transmission rod is connected with the slot 211;

a guide 7, wherein the guide 7 is used for guiding the transmission rod to form connection with the slot 211, and the guide 7 is arranged at one end of the base 5 far away from the operation part 22.

The guide member 7 includes a connecting portion 71 for connecting with the base 5, a butt joint port 711 corresponding to the rotation hole 51 is formed in the middle of the connecting portion 71, a butt joint boss 712 is disposed on the connecting portion 71, a guide channel 73 communicated with the butt joint port 711 is formed in the butt joint boss 712, and the guide channel 713 is in a bell mouth shape with a large outside and a small inside.

As shown in fig. 6 and 7, there are two different guides 7:

the guide channel 713 is provided with first guide portions 7131 in a cross shape, a second guide portion 7132 is arranged between every two first guide portions 7131, and the second guide portions 7132 protrude inwards relative to the first guide portions 7131.

The butt joint boss 712 is cylindrical, and the guide channel 713 is circular truncated cone-shaped.

Make operating handle when being connected with the transfer line on emergency device through setting up guide 7, improve and connect the fault-tolerant rate, can form after the guide through the guide when the slot of transfer line and operating handle has some squints and is connected, it is very convenient to operate, has labour saving and time saving's advantage.

Furthermore, a synchronous rotating linkage disc 3 is arranged on the part of the key lock cylinder 1 positioned in the rotating part 21, the linkage disc 3 is provided with a slope 31 which is abutted against the locking pin 4, the slope 31 is provided with a locking area 312 which is close to the locking pin 4 and corresponds to the locking pin 4 in a switching way during rotation and an unlocking area 311 which is far away from the locking pin 4, and the rotating part 21 is provided with a resetting piece which resets the locking pin 4 to the slope; the linkage disc 3 is used as a driving piece for driving the locking pin 4 to move, the slope surface 31 of the linkage disc converts the rotary driving force into a linear driving force, the process is smoother, and the locking pin 4 is enabled to be constantly abutted against the slope surface by matching with the reset piece, so that the accuracy of the position of the locking pin 4 is ensured.

Furthermore, the end surface of the locking pin 4 abutting against the slope surface 31 is a spherical surface 41, so that on one hand, damping generated when the spherical surface 41 slides along the slope surface 31 is reduced, the rotation of the key lock cylinder 1 is more labor-saving, and on the other hand, the action of the locking pin 4 is more sensitive; the locking pin 4 is provided with a reset step 42 around the locking pin 4, the rotating part 21 is provided with a reset ring around the locking pin 4, and in the embodiment, the reset member is a cylindrical compression spring which is sleeved on the locking pin 4 and compressed on the reset step 42 and the reset ring; the cylinder compression spring can provide stable, the straight line power that resets that lasts, guarantees that stop pin 4 laminates constantly, and simultaneously, the ring that resets and the mounted position of step combination conduct cylinder compression spring that resets make cylinder compression spring's installation more convenient.

Furthermore, the two sides of the locking pin 4 are respectively provided with an elastic support leg 43, the rotating part 21 is provided with a sliding hole 214 which is matched with the locking pin 4 and the elastic support leg 43 in a sliding manner, the rotating part 21 is provided with a strip-shaped groove 213 which is communicated with the sliding hole 214 and corresponds to the elastic support leg 43 along the moving direction of the locking pin 4, and the elastic support leg 43 is provided with a sliding block 44 which is arranged in the strip-shaped groove 213 in a sliding manner; the bar groove 213 cooperates with the slider 44 to improve the stability of movement of the locking pin 4, and avoids the separation of the locking pin 4 from the rotating part 21, thereby ensuring the working reliability, and meanwhile, the elastic support legs 43 are adopted to connect the slider 44 with the locking pin 4, and the elastic support legs 43 are compressed to pack the slider 44 into the bar groove 213, thereby improving the assembly convenience.

Furthermore, each slide block 44 is provided with a matching inclined surface 45, the distance between the matching inclined surfaces 45 on both sides is gradually reduced along the direction that the locking pin 4 is installed in the sliding hole 214, the end part of the sliding hole 214, which is located at the position where the locking pin 4 is installed, and the slide block 44 are correspondingly provided with an extrusion inclined surface 212, the distance between the extrusion inclined surfaces 212 on both sides is gradually reduced along the direction that the locking pin 4 is installed in the sliding hole 214, and the extrusion inclined surfaces 212 extrude the matching inclined surfaces 45 to compress the elastic support legs 43 in the process that the locking pin 4 is installed in the sliding hole 214; the matching inclined plane 45 is matched with the extrusion inclined plane 212, so that the elastic supporting legs 43 are automatically compressed in the process that the locking pin 4 is arranged in the sliding hole 214, manual compression is not needed, and the assembling convenience is further improved.

Furthermore, the transmission end is fixedly provided with a limiting disc 6 limited in the base 5, the periphery of the limiting disc 6 is provided with a limiting block 61, the moving track of the base 5 at the limiting block 61 is provided with a limiting bulge 52 for limiting the moving range of the limiting block 61, the limiting disc 6 is provided with a locking hole 62 for the locking pin 4 to be inserted into to form locking, and the limiting disc is also provided with a connecting hole 63 for fixing with the base 5; the limiting disc 6 is additionally arranged, so that the handle 2 is not separated from the base in the rotating process, the rotating stability is ensured, the moving range of the limiting block is limited by the limiting bulge 52, namely, the rotating range of the rotating part is limited, and the overtravel operation of the handle 2 is avoided.

The above disclosure is only for the purpose of illustrating the preferred embodiments of the present invention, and it is therefore to be understood that the utility model is not limited by the scope of the appended claims.

Claims

1. The utility model provides a be applied to emergency device's area lock operating handle convenient to assembly, includes base (5) and the transfer line that is used for connecting operating handle and emergency device, base (5) one side is equipped with handle (2), and the opposite side is equipped with guide (7), base (5) can be relatively rotated in handle (2), be equipped with the confession on handle (2) the inserted slot (211) of transfer line, handle (2) are equipped with closing position and separating brake position, the position that handle (2) were located when closing position was emergency device in the combined floodgate state, the position that handle (2) were located when separating brake position was emergency device in the separating brake state, its characterized in that: the guide piece (7) is provided with a limiting mechanism, the limiting mechanism is used for enabling the transmission rod to be only inserted into the slot (211) and not to be pulled out of the slot (211) when the handle (2) is located at a switch-on position, and is used for enabling the transmission rod to be freely inserted into or pulled out of the slot (211) when the handle (2) is located at a switch-off position.

2. An easy-to-assemble locking operating handle for an emergency device according to claim 1, wherein: the guide piece (7) is used for guiding the transmission rod to be connected with the slot (211); the guide piece (7) comprises a connecting portion (71) connected with the base (5), a butt joint port (711) corresponding to the rotating hole (51) is formed in the middle of the connecting portion (71), a butt joint boss (712) is arranged on the connecting portion (71), a guide channel (713) communicated with the butt joint port (711) is formed in the butt joint boss (712), and the guide channel (713) is in a horn mouth shape with a large outer part and a small inner part.

3. An easy-to-assemble locking operating handle for an emergency device according to claim 2, wherein: the limiting mechanism comprises a limiting sheet groove (101), an elastic piece groove (91) and a limiting button groove (81), wherein the limiting sheet groove (101), the elastic piece groove (91) and the limiting button groove (81) are arranged on one side, close to the base (5), of the guide piece (7), a limiting sheet (10) is arranged in the limiting sheet groove (101), an elastic piece (9) is arranged in the elastic piece groove (91), and a limiting button (8) is arranged in the limiting button groove (81); one side of the limiting piece (10) extends and is provided with a bending part (102), the bending part (102) is embedded into the elastic piece groove (91), one side of the elastic piece (9) is abutted to the inner wall of the elastic piece groove (91), the other side of the elastic piece is abutted to the bending part (102), and the bending part (102) is not abutted to one side of the elastic piece (9) and is abutted to the limiting button (8).

4. An easy-to-assemble locking operating handle for an emergency device according to claim 3, wherein: the limiting piece (10) is used for partially shielding the slot (211) when the handle (2) is in a switch-on position, so that the transmission rod can only be inserted into the slot (211) and can not be pulled out of the slot (211), and is used for not shielding the slot (211) when the handle (2) is in a switch-off position, so that the transmission rod can be freely inserted into or pulled out of the slot (211).

5. An easy-to-assemble locking operating handle for an emergency device according to claim 4, wherein: be equipped with breach (103) in the middle of spacing piece (10), breach (103) wherein correspond and be equipped with arch (105) on the side, arch (105) embedding in base (5) and shelter from the part interface (711) is used for when handle (2) are in the closing position, make the transfer line can't be extracted slot (211).

6. An easy-to-assemble locking operating handle for an emergency device according to claim 5, wherein: the protrusion (105) is provided with a pressing inclined surface (104) towards one side of the guide channel (713) for pressing the transmission rod to be inserted into the insertion slot (211) when the handle (2) is in a switching-on position.

7. An easy-to-assemble locking operating handle for an emergency device according to claim 6, wherein: the limiting button is characterized in that protruding blocks (82) used for limiting the limiting button (8) are arranged on two sides of the limiting button (8), and the protruding blocks (82) are abutted to the groove wall of the limiting button groove (81).

8. An easy-to-assemble locking operating handle for an emergency device according to claim 1, wherein: the lock also comprises a key lock cylinder (1) and a locking pin (4);

a handle (2), the handle (2) comprising a rotating portion (21) and an operating portion (22);

one end of the rotating part (21) is used as a transmission end and extends into the base (5), and the other end of the rotating part is used as an operation end and is positioned outside the base (5);

a drive end on which the slot (211) is disposed;

an operating part (22), wherein the operating part (22) is fixed at an operating end and is used for driving the rotating part (21) to rotate;

a base (5), wherein the base (5) is provided with a rotating hole (51) for embedding the rotating part (21) to form a rotating fit;

the rotary hole (51), the edge of the rotary hole (51) is provided with a locking recess (511);

a key cylinder (1), said key cylinder (1) being rotatably arranged in the rotating portion (21) and being rotatable only when a key is inserted;

a locking pin (4), said locking pin (4) being located between the locking recess (511) and the key cylinder (1) and moving axially within the rotating portion (21);

the key lock cylinder (1) is in linkage fit with the locking pin (4), and the key lock cylinder (1) has a locking position enabling the locking pin (4) to be located in the locking recess (511) and an unlocking position enabling the locking pin (4) to be located outside the locking recess (511) when rotating;

one end of the transmission rod is connected with the emergency device and used for driving the emergency device to be switched off or switched on, and the other end of the transmission rod is connected with the slot (211).

9. An easy-to-assemble locking operating handle for an emergency device according to claim 2, wherein: the butt joint boss (712) is cylindrical, and the guide channel (713) is in a circular truncated cone shape.

10. An easy-to-assemble locking operating handle for an emergency device according to claim 2, wherein: the guide channel (713) is provided with a first guide part (7131) and is arranged in a cross shape, every two second guide parts (7132) are arranged between the first guide parts (7131), and the second guide parts (7132) protrude inwards relative to the first guide parts (7131).