CN116370228A

CN116370228A - Special warm case of neonate

Info

Publication number: CN116370228A
Application number: CN202310089769.4A
Authority: CN
Inventors: 张黎; 朱丹; 李艳
Original assignee: Chinese Peoples Liberation Army Army Specialized Medical Center
Current assignee: Chinese Peoples Liberation Army Army Specialized Medical Center
Priority date: 2023-02-09
Filing date: 2023-02-09
Publication date: 2023-07-04

Abstract

The invention discloses a special warm box for newborns, which comprises a warm box body, a mounting plate, a bed sheet, a positioning rod and a lifting device, wherein the mounting plate is arranged on the warm box body: the mounting plate is arranged on the inner top surface of the warm box body; the bed sheet is paved on a mattress of the warm box body, and a plurality of hanging buckles are arranged on the bed sheet at intervals; the bottom surface of the mounting plate is provided with a first chute along the length direction of the warming box body, a plurality of positioning rods are arranged, the top ends of the positioning rods can be rotationally connected with the first chute, and the bottom ends of the positioning rods can be tightly pressed on a mattress of the warming box; the lifting device comprises a lifting driving source, a lifting appliance and a lifting hook, wherein the lifting driving source is arranged on the mounting plate, the lifting appliance is arranged on the lifting driving source, the lifting driving source can drive the lifting appliance to lift, the lifting hook is arranged at the end part of the lifting appliance, and the lifting hook can be buckled with the hanging buckle. The special warm box for the neonate can facilitate the patient to turn over, and simultaneously can effectively reduce the damage caused in the turn-over process.

Description

Special warm case of neonate

Technical Field

The invention relates to a special warm box for newborns.

Background

Premature infants need to be observed and treated in an incubator for a long time due to imperfect development of the systems of all organs, especially very low birth weight infants and very low birth weight infants, especially dysplasia of the lung and poor respiratory function.

The children who live in the warm box for a long time need nurses to help them turn over regularly, prevent pressure sores. But the existing warm box and warm bed can not assist in turning over, and a nurse is required to assist in turning over in the warm box. However, because the space in the warm box is limited, and the baby just born is softer because of the health, the nurse turns over the operation to the infant in limited space, is particularly difficult, and in addition, because the infant turns over the back, needs to carry out other operations such as clapping back, expelling phlegm, etc. this kind of operation tends to need to carry out the support in a period of time after turning over, like this, further increased the operation degree of difficulty that the nurse stood over.

In the prior art, a part of warm box adopts a mode of arranging a push rod at the bottom of the warm box, when the warm box needs to be overturned, a new born child is overturned from one side to the other side by pushing the push rod, and the following defects exist in the mode:

1. because the premature infant body is softer, and half of the push rod is pushed by point contact, the head, the legs and the like of the infant cannot be turned over in place;

2. because the push rod adopts a hard pushing mode, accidents such as propping the child to be injured easily occur.

Disclosure of Invention

Aiming at the defects in the prior art, the invention aims to provide the special warm box for the neonate, which can facilitate the neonate to turn over, and can effectively reduce the damage caused in the turn-over process.

In order to achieve the above object, the present invention is realized by the following technical scheme: the utility model provides a special warm case of neonate, includes warm box, still includes:

the mounting plate is arranged on the inner top surface of the heating box body;

the bed sheet is paved on a mattress of the warm box body, and a plurality of hanging buckles are arranged on the bed sheet at intervals;

the bottom surface of the mounting plate is provided with a plurality of first sliding grooves along the length direction of the heating box body, the top ends of the plurality of positioning rods are rotatably connected with the first sliding grooves, and the bottom ends of the positioning rods can be pressed on a mattress of the heating box;

the lifting device comprises a lifting driving source, a lifting appliance and a lifting hook, wherein the lifting driving source is arranged on the mounting plate, the lifting appliance is arranged on the lifting driving source, the lifting appliance can be driven by the lifting driving source to lift, the lifting hook is arranged at the end part of the lifting appliance, and the lifting hook can be in buckling connection with the hanging buckle.

Further, the positioning rod comprises a first sliding block and a supporting rod, the first sliding block can be slidably clamped in the first sliding groove, and the supporting rod is hinged with the first sliding block.

Further, the positioning rod further comprises a connecting belt, and two adjacent supporting rods are detachably provided with one connecting belt.

Further, the positioning rod further comprises an angle limiting assembly, the supporting rod is connected through the angle limiting assembly, and the angle limiting assembly can control the rotating angle of the supporting rod relative to the first sliding block.

Further, the angle limiting assembly comprises two mounting blocks, a first gear, a mounting shaft, an elastic supporting piece and a second gear, wherein the two mounting blocks are oppositely arranged on the end face of the first sliding block, a mounting bin is arranged in each mounting block, one first gear is arranged in each mounting bin, vertical grooves communicated with the mounting bin are formed in the opposite end faces of the two mounting blocks, the two ends of the mounting shaft respectively penetrate through the vertical grooves in the mounting bin and extend to the same side in a sliding mode, the top of the supporting rod is fixedly connected with the mounting shaft, one second gear is arranged at the two ends of the mounting shaft, the elastic supporting piece is located between the two mounting blocks, one end of the elastic supporting piece is connected with the top of the first sliding block, the other end of the elastic supporting piece is in butt joint with the outer wall of the mounting shaft, and the second gear is meshed with the first gear under the compression effect of the elastic supporting piece.

Further, the angle limiting assembly further comprises a U-shaped clamp, wherein the U-shaped clamp is arranged at the end part of the elastic supporting piece and can be clamped on the outer wall of the installation shaft in a relative rotating mode.

Further, the lifting driving source comprises a first bidirectional rotating power source and a rotating rod, the first bidirectional rotating power source is arranged on the bottom surface of the mounting plate through a support, the rotating rod can be rotatably arranged on the bottom surface of the mounting plate through a support, the rotating rod is arranged along the length direction of the heating box body and is connected with a power output shaft of the first bidirectional rotating power source, the lifting appliance is a lifting rope, the lifting rope is connected to the rotating rod, and when the rotating rod rotates, the lifting rope can be wound on the rotating rod.

Further, the hoisting device further comprises a plurality of winders, the winders are arranged at intervals along the rotating rods, each lifting rope is connected with the rotating rod through the winders, the winders are used for winding the lifting rope, and the winders can control the pulled-out length of the lifting rope.

Further, the winder comprises a shell, a rotating shaft, a plate spring and a limiting block, wherein the inner cavity of the shell is hollow and is coaxially arranged in the rotating rod, the rotating shaft is positioned in the inner cavity of the shell, two ends of the rotating shaft are fixed on the side wall of the shell, the plate spring is sleeved with the rotating shaft, one end of the plate spring is fixedly connected with the rotating shaft, a through hole communicated with the inner cavity of the shell is formed in the side wall of the shell, the through hole is parallel to the rotating shaft, and the lifting rope penetrates through the through hole and is connected with the other end of the plate spring;

the T-shaped second sliding chute is arranged on the shell, the small end of the T-shaped second sliding chute is communicated with the outside, the large end of the T-shaped second sliding chute is communicated with the inner cavity of the shell, the interface between the small end and the large end is a first inclined surface, the limiting block comprises a sliding part and a clamping part, the sliding part is positioned in the small end and extends out of the shell, a baffle is arranged at the end part, far away from the clamping part, of the sliding part, and is abutted against the end face of the shell, the clamping part is positioned in the large end and extends into the inner cavity of the shell until being abutted against the lifting rope, and the clamping part is obliquely arranged at the interface of the sliding part and is adapted to the first inclined surface.

Further, the heating box further comprises a third sliding block, a plurality of third sliding grooves which are communicated with each other are formed in the inner top surface of the heating box body, the third sliding block can be slidably clamped in the third sliding grooves, and the mounting plate is rotatably connected with the third sliding block.

The invention has the beneficial effects that:

when the special warm box for the neonate is used, the positioning rod is slid to be right above one side of the neonate body, then the positioning rod is rotated until the bottom end of the positioning rod is pressed on a mattress on one side of the neonate, which needs to be turned over, for example, on a bed sheet on one side of the neonate waist and shoulder, then, the lifting hook of the lifting device is hung with the lifting hook on the bed sheet on the other side of the neonate, the lifting driving source is started, the lifting hook slowly lifts one side of the bed sheet, and the bed sheet on the side rotates by taking a connecting line formed by a plurality of positioning rods and bed sheet pressing points as a rotating shaft, so that the neonate can slowly rotate towards one side of the positioning rod until the infant is turned over and pressed on the positioning rod.

The special warm box for the neonate can not only be abutted against the neonate, but also prevent the neonate from moving to one side of the neonate in the overturning process, and the positioning rod is in pressing contact with the bed sheet in the overturning process; simultaneously, compress tightly the sheet and can prevent that the sheet from taking place to remove and influence the effect of standing up, in addition, because the sheet carries out flexible, large tracts of land contact mode with the infant, can reach the needs of standing up in place, can also effectually reduce the unexpected injured risk of infant at the in-process of standing up simultaneously.

Drawings

In order to more clearly illustrate the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described. Throughout the drawings, the elements or portions are not necessarily drawn to actual scale.

FIG. 1 is a schematic diagram of a warm box special for a newborn according to an embodiment of the present invention;

FIG. 2 is a schematic view of the incubator of FIG. 1 in a turned-over state;

FIG. 3 is a partial schematic view of FIG. 2 at A;

FIG. 4 is a schematic view of the first gear and the second gear in the neonatal warm box shown in FIG. 1 in a disengaged state;

FIG. 5 is a schematic view of a lifting device in the neonatal incubator of FIG. 1;

FIG. 6 is a schematic view of the first gear and the second gear in the neonatal warm box shown in FIG. 1 in a disengaged state;

FIG. 7 is a schematic view of a retractor in the neonatal incubator of FIG. 1;

FIG. 8 is a schematic view of a stopper of a retractor in the neonatal incubator of FIG. 1;

reference numerals:

1. an infant;

100. a warm box body; 110. an inner top surface; 120. a second chute;

200. a mounting plate; 210. a first chute;

300. bed sheets; 310. hanging buckle;

400. a positioning rod; 410. a first slider; 420. a brace rod; 430. an angle limiting assembly; 431. a mounting block; 432. a first gear; 433. a mounting shaft; 434. an elastic support member; 435. a second gear; 436. a U-shaped card; 437. a mounting bin; 438. a vertical groove;

500. a lifting device; 510. hoisting a driving source; 511. a first bi-directional rotary power source; 512. a rotating rod; 520. a lifting appliance; 530. a lifting hook; 540. a winder; 541. a housing; 542. a rotating shaft; 543. a leaf spring; 544. a limiting block; 5441. a sliding part; 5442. a clamping part; 5443. a baffle;

600. third slide block

Detailed Description

Embodiments of the technical scheme of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are only for more clearly illustrating the technical aspects of the present invention, and thus are merely examples, and are not intended to limit the scope of the present invention.

Referring to fig. 1 to 8, the present invention provides a special warming box for a newborn, which comprises a warming box body 100, a mounting plate 200, a bed sheet 300, a positioning rod 400 and a lifting device 500.

Specifically, the mounting plate 200 is disposed on the interior top surface 110 of the warm box 100. The sheet 300 is laid on the mattress of the warm case 100, and a plurality of hanging buttons 310 are provided on the sheet 300 at intervals. The first chute 210 is formed in the bottom surface of the mounting plate 200 along the length direction of the heating box body 100, a plurality of positioning rods 400 are arranged, the top ends of the positioning rods 400 can be rotatably connected with the first chute 210, and the bottom ends of the positioning rods 400 can be tightly pressed on a mattress of the heating box. In particular implementations, the rods 400 are at least two.

The lifting device 500 includes a lifting drive source 510, a lifting appliance 520, and a lifting hook 530. The lifting driving source 510 is arranged on the mounting plate 200, the lifting tool 520 is arranged on the lifting driving source 510, the lifting driving source 510 can drive the lifting tool 520 to lift, the lifting hook 530 is arranged at the end part of the lifting tool 520, and the lifting hook 530 can be buckled with the hanging buckle 310.

When the positioning rod 400 is used, the positioning rod 400 is slid to the position right above one side of the body of the neonate 1, then the positioning rod 400 is rotated until the bottom end of the positioning rod 400 is pressed on a mattress on one side of the neonate 1, which needs to be turned over, for example, the mattress 300 on one side of the waist and the shoulder of the neonate 1, then the lifting hook 530 of the lifting device 500 is hung with the lifting hook 530 on the mattress 300 on the other side of the neonate 1, the lifting driving source 510 is started, the lifting hook 530 slowly lifts one side of the mattress 300, and the mattress 300 on the side rotates by taking a connecting line formed by a plurality of pressing points of the positioning rods 400 and the mattress 300 as a rotating shaft 542, so that the neonate 1 can be slowly rotated towards the side of the positioning rod 400 until an infant is turned over and pressed on the positioning rod 400.

The special warm box for the neonate can not only be abutted against the neonate, but also prevent the neonate from moving to one side of the neonate in the overturning process because the positioning rod 400 is in compression contact with the bed sheet 300 in the overturning process; meanwhile, the bedsheet 300 is pressed tightly, so that the bedsheet 300 is prevented from moving to influence the turning effect, and in addition, due to the fact that the bedsheet 300 is in flexible and large-area contact with an infant, the need of turning in place can be met, and meanwhile the risk of accidental injury of the infant in the turning process can be effectively reduced.

In this embodiment, the positioning rod 400 includes a first slider 410 and a stay 420. The first slider 410 is slidably engaged in the first chute 210, and the stay 420 is hinged to the first slider 410. In the normal state, the stay bar 420 is rotated to the top of the warm box 100, and when the body needs to be turned over, the stay bar 420 is rotated downward. By adopting the mode, the positioning rod 400 is convenient to store, and the child is prevented from being put into or held out. Of course, in other embodiments, the stay 420 may be a telescopic rod, or the positioning rod 400 may be stored.

The positioning rod 400 further includes a connection strap (not shown) having both ends detachably connected to both ends of the stay 420 as a preferred embodiment. In the normal state, the connecting band is separated from the stay bar 420, and when the stay bar 420 is supported on the sheet 300, both ends of the connecting band can be connected with both ends of the stay bar 420, so that the auxiliary support effect can be achieved for the patient after the child turns over. In particular, the connection strap and the stay 420 may be detachably bonded, fastened, tied, etc.

As a more preferred embodiment, the positioning rod 400 further includes an angle limiting assembly 430, the stay 420 is connected by the angle limiting assembly 430, and the angle limiting assembly 430 can control the rotation angle of the stay 420 relative to the first slider 410, so as to prevent the angular mode of the positioning rod 400 from being changed during the overturning process.

Specifically, the angle limiting assembly 430 includes a mounting block 431, a first gear 432, a mounting shaft 433, a resilient support 434, and a second gear 435. There are two mounting blocks 431, and two mounting blocks 431 can be oppositely arranged on the end surface of the first slider 410 facing the mattress. The installation blocks 431 are internally provided with installation bins 437, the two installation bins 437 are respectively provided with a first gear 432, and vertical grooves 438 communicated with the installation bins 437 are respectively formed in the opposite end surfaces of the two installation blocks 431. Both ends of the mounting shaft 433 are slidably extended through the vertical slots 438 into the same-side mounting chamber 437, respectively. The top of the stay 420 is fixedly connected with the mounting shaft 433, and two ends of the mounting shaft 433 are provided with a second gear 435. The elastic supporting piece 434 is located between the two mounting blocks 431, one end of the elastic supporting piece 434 is connected with the top of the first slider 410, the other end of the elastic supporting piece 434 is abutted against the outer wall of the mounting shaft 433, and under the compression effect of the elastic supporting piece 434, the second gear 435 is in a meshed state with the first gear 432.

In the normal state, the mounting shaft 433 is positioned near the bottom end of the mounting block 431 under the pressure of the elastic supporting member 434, and the first gear 432 is engaged with the second gear 435. When the stay 420 is required to rotate, the stay 420 is pulled to lift the mounting shaft 433 upward and rotate the stay 420, the mounting shaft 433 slides upward along the vertical groove 438, the stay 420 can be rotated after the first gear 432 is separated from the second gear 435, when the stay 420 rotates in place, the lifting force is released, the mounting shaft 433 slides downward along the vertical groove 438 under the restoring force of the elastic stay 434, and the first gear 432 and the second gear 435 are meshed again, so that the angle of the stay 420 can be locked.

In addition, the angle stop assembly 430 also includes a U-shaped card 436. A U-shaped clip 436 is provided at the end of the elastic stay 434 and rotatably attached to the outer wall of the mounting shaft 433. The slip-off between the elastic supporting piece 434 and the mounting shaft 433 is prevented by the U-shaped card 436.

In the present embodiment, the hoist driving source 510 includes a first bi-directional rotation power source 511 and a rotation lever 512. The first bi-directional rotation power source 511 is disposed on the bottom surface of the mounting plate 200 through a bracket, the rotation rod 512 is rotatably disposed on the bottom surface of the mounting plate 200 through a bracket, and the rotation rod 512 is disposed along the length direction of the heating case 100 and is connected to the power output shaft of the first bi-directional rotation power source 511. The hanger 520 is a hanging rope connected to the rotating rod 512, and when the rotating rod 512 rotates, the hanging rope can be wound around the rotating rod 512.

When the infant turns on one's side, only need to first connect the hook 530 with the hanging buckle 310, then rotate and start the first bi-directional rotation power source 511, the first bi-directional rotation power source 511 drives the rotating rod 512 to rotate clockwise, so that the hanging rope is wound around the rotating rod 512, and the sheet 300 is lifted up slowly to turn on one's side. In other embodiments, the rotation method may be a method of manually driving the rotation lever 512 to rotate.

As another preferred embodiment, the lifted driving source 510 further includes a plurality of winders 540, the winders 540 are arranged at intervals along the rotating rod 512, each lifting rope is connected with the rotating rod 512 through the winders 540, the winders 540 are used for winding the lifting rope, and the winders 540 can control the length of the lifting rope pulled out, so that the lifting hook 530 can be fixed at different positions, and the side turning effect is consistent. Such as: when the lifting rope is used, the pulling lengths of the two lifting ropes on one side of the waist and the shoulder are the same, the lifting rope on one side of the head is slightly shorter, and when the lifting rope is rotated by the rotating rod 512, the head, the waist and the shoulder can be turned over simultaneously.

Specifically, the retractor 540 includes a housing 541, a rotation shaft 542, a plate spring 543, and a stopper 544. The inner chamber of shell 541 is hollow to coaxial setting is at rotary rod 512, and pivot 542 is located the inner chamber of shell 541, and the both ends of pivot 542 are fixed on the lateral wall of shell 541, and pivot 542 is established to leaf spring 543 cover, and the one end and the pivot 542 fixed connection of leaf spring 543, offered the perforation with the inner chamber intercommunication of shell 541 at the lateral wall of shell 541, and perforation and pivot 542 parallel arrangement, and the lifting rope passes the perforation and then is connected with other one end of leaf spring 543.

The shell 541 is provided with a T-shaped second chute, the small end of the T-shaped second chute is communicated with the outside, the large end of the T-shaped second chute is communicated with the inner cavity of the shell 541, and the interface between the small end and the large end is a first inclined plane. The stopper 544 includes a sliding portion 5441 and a click portion 5442. The sliding portion 5441 is located in the small end and extends to the outside of the housing 541, a baffle 5443 is arranged at the end, away from the clamping portion 5442, of the sliding portion 5441, the baffle 5443 abuts against the end face of the housing 541, the clamping portion 5442 is located in the large end and extends into the inner cavity of the housing 541 until abutting against the lifting rope, and the interface between the clamping portion 5442 and the sliding portion 5441 is obliquely arranged and is matched with the first inclined plane.

Under the effect of leaf spring 543 at ordinary times, the lifting rope is rolled up in the coiler 540, and the tip of lifting hook 530 exposes, and the screens portion 5442 of stopper 544 is in the separation state with the lifting rope, during the use, outwards pulls the tip of lifting rope, and after the tip of lifting rope draws out length to reach the requirement, promotes baffle 5443 along T type spout, uses the tip of screens portion 5442 to firmly block on the lifting rope, then can carry out the screens with the lifting rope fixed, makes the length that the lifting rope pulled out remain unchanged.

As a more preferred embodiment, the present incubator further comprises a third slider 600. The inner top surface 110 of the warm case 100 is provided with a plurality of third sliding grooves 600 which are communicated with each other. The third sliding block 600 is slidably clamped in the third sliding groove 600, and the mounting plate 200 is rotatably connected with the third sliding block 600;

when the infant is required to be turned up to the inclined position in the supine position, the mounting plate 200 is rotated by 90 degrees, the third slider 600 is moved, the stay bar 420 is rotated to position the stay bar 420 on the left and right sides of the buttocks of the infant, the connecting belt is pressed on the abdomen of the patient, the two ends of the connecting belt are fixed on the stay bar 420, and finally the hanging hook 530 is hung on the hanging buckle 310, so that the infant can be turned up to the inclined position from the supine position.

The above embodiments are only for illustrating the technical solution of the present invention, and are not limiting; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the invention, and are intended to be included within the scope of the appended claims and description.

Claims

1. The utility model provides a special warm case of neonate, includes warm box, its characterized in that, includes:

2. The neonatal incubator of claim 1, wherein the positioning rod comprises a first slider and a stay rod, the first slider is slidably clamped in the first chute, and the stay rod is hinged to the first slider.

3. The neonatal incubator of claim 2, wherein the positioning rod further comprises a connecting strap, and two adjacent stay rods are detachably provided with one connecting strap.

4. The neonatal incubator of claim 2 or 3, wherein the positioning rod further comprises an angle limiting assembly, the stay rod is connected through the angle limiting assembly, and the angle limiting assembly can control the angle of rotation of the stay rod relative to the first slider.

5. The special warm box for newborns according to claim 4, wherein the angle limiting assembly comprises two mounting blocks, two first gears, a mounting shaft, elastic supporting members and a second gear, wherein the two mounting blocks can be oppositely arranged on the end face of the first sliding block facing the mattress, a mounting bin is arranged in each mounting block, one first gear is arranged in each mounting bin, vertical grooves communicated with each mounting bin are formed in the end faces of the two mounting blocks, two ends of the mounting shaft can respectively slide in the mounting bins which extend to the same side through the vertical grooves, the top of the supporting members are fixedly connected with the mounting shaft, one second gear is arranged at the two ends of the mounting shaft, the elastic supporting members are arranged between the two mounting blocks, one end of each elastic supporting member is connected with the top of the first sliding block, the other section of each elastic supporting member is in butt joint with the outer wall of the mounting shaft, and the two gears are meshed with the first gears under the action of the elastic supporting members.

6. The neonatal incubator of claim 5, wherein the angle limiting assembly further comprises a U-shaped clip disposed at an end of the elastic support member and rotatably secured to an outer wall of the mounting shaft.

7. The neonatal incubator according to claim 1, wherein the lifting driving source comprises a first bidirectional rotating power source and a rotating rod, the first bidirectional rotating power source is arranged on the bottom surface of the mounting plate through a bracket, the rotating rod is rotatably arranged on the bottom surface of the mounting plate through the bracket, the rotating rod is arranged along the length direction of the incubator body and is connected with a power output shaft of the first bidirectional rotating power source, the lifting appliance is a lifting rope, the lifting rope is connected to the rotating rod, and when the rotating rod rotates, the lifting rope can be wound on the rotating rod.

8. The neonatal incubator of claim 7, wherein the lifting device further comprises a plurality of winders, the winders are arranged at intervals along the rotating rods, each lifting rope is connected with the rotating rod through the winders, the winders are used for winding the lifting rope, and the winders can control the pulled-out length of the lifting rope.

9. The special neonatal incubator according to claim 8, wherein the winder comprises a housing, a rotating shaft, a plate spring and a limiting block, wherein an inner cavity of the housing is hollow and coaxially arranged in the rotating rod, the rotating shaft is positioned in the inner cavity of the housing, two ends of the rotating shaft are fixed on the side wall of the housing, the plate spring is sleeved with the rotating shaft, one end of the plate spring is fixedly connected with the rotating shaft, a through hole communicated with the inner cavity of the housing is formed in the side wall of the housing, the through hole is parallel to the rotating shaft, and the lifting rope is connected with the other end of the plate spring after passing through the through hole;

10. The special warm box for newborns according to claim 3, further comprising a third sliding block, wherein a plurality of third sliding grooves which are communicated with each other are formed in the inner top surface of the warm box body, the third sliding block can be slidably clamped in the third sliding grooves, and the mounting plate is rotatably connected with the third sliding block.