CN118141650B

CN118141650B - Dental diagnosis and treatment bed

Info

Publication number: CN118141650B
Application number: CN202410128677.7A
Authority: CN
Inventors: 冯国海; 吕振河; 杨蓉; 余洪
Original assignee: Foshan Safety Medical Equipment Co ltd
Current assignee: Foshan Safety Medical Equipment Co ltd
Priority date: 2024-01-30
Filing date: 2024-01-30
Publication date: 2024-08-30
Anticipated expiration: 2044-01-30
Also published as: CN118141650A

Abstract

The application relates to the technical field of dentists chairs, in particular to a dental diagnosis and treatment bed. The dental diagnosis and treatment bed comprises: the big bed is used for lying a person, and comprises a big bed backrest and a big bed cushion; the small bed is used for lying the child and comprises a small bed backrest, a small bed cushion, a small bed backrest supporting structure and a small bed backrest locking mechanism, and the small bed is arranged above the large bed; the small bed backrest supporting structure is used for supporting the inclination angle of the small bed backrest; when the weight of the child pressed on the small bed cushion does not exceed a preset weight value, the small bed backrest supporting structure can enable the maximum inclination angle of the small bed backrest to be larger than the inclination angle of the large bed backrest; when the weight of the child pressed on the small bed cushion exceeds a preset weight value, the small bed back support structure is locked by the small bed back locking mechanism, so that the maximum inclination angle of the small bed back can only be smaller than or equal to the inclination angle of the large bed back. The application provides a dental diagnosis and treatment bed which can balance the comfort requirements of children and adults.

Description

Dental diagnosis and treatment bed

Technical Field

The application relates to the technical field of dentists chairs, in particular to a dental diagnosis and treatment bed.

Background

In traditional dental treatment, particularly for children, it is often necessary for the patient to remain in a relatively fixed posture for a period of time. For adult patients, comfortable dental beds can help them relax and alleviate discomfort from prolonged fixed posture.

However, pediatric patients face different challenges. Since children often feel fear or uneasiness during dental treatment, it is an unfeasible task to require them to stay quiet or not feel fear on the dentist's bed alone. Therefore, in the prior art, when a child is treated in dentistry, a parent is usually required to lie on a dental bed to hold the child so that the head of the child can incline, and the dentist can conveniently treat the child. In this process, the dentist needs the probe to observe the child in the parents' hands, and the parents need to hold the child all the time so that the child keeps an inclined state, so that the dentist and the parents feel tired, and the child may feel uncomfortable.

Chinese patent CN210844064U proposes a pediatric dedicated auxiliary chair for diagnosis and treatment, which is the closest prior art. Provides a device which is convenient for adults to hold children for joint diagnosis and treatment. The diagnosis and treatment chair is provided with an independent child cushion for allowing a child to sit on. However, such a chair still requires that the child leave the adult and sit separately, and the parent needs to actively lean against the child's back to provide a hug sensation. In addition, in the context of dental diagnosis and treatment, it is necessary that a child is kept in a lying state so that the head is kept inclined, and when the child is lying down with inclination, the center of gravity shift may press the chest and abdomen of a adult, resulting in discomfort. Therefore, it still fails to adequately balance and meet the comfort needs of children and adults.

Disclosure of Invention

In order to solve the technical problems described above or at least partially solve the technical problems described above, the present application provides a dental diagnostic bed which is able to balance and meet the comfort requirements of children and adults.

In a first aspect, the present application provides a dental treatment couch, comprising:

The large bed is used for lying a person, and comprises a large bed backrest and a large bed cushion;

the small bed is used for lying the child and comprises a small bed backrest, a small bed cushion, a small bed backrest supporting structure and a small bed backrest locking mechanism, and the small bed is arranged above the large bed;

The small bed backrest supporting structure is used for supporting the inclination angle of the small bed backrest;

when the weight of the child pressed on the small bed cushion does not exceed a preset weight value, the small bed backrest supporting structure can enable the maximum inclination angle of the small bed backrest to be larger than the inclination angle of the large bed backrest;

When the weight of the child pressed on the small bed cushion exceeds a preset weight value, the small bed back support structure is locked by the small bed back locking mechanism, so that the maximum inclination angle of the small bed back can only be smaller than or equal to the inclination angle of the large bed back.

Optionally, the small bed back support structure comprises a first air plug rod, a first air plug rod base, a first air cylinder and a first air channel, wherein the first air cylinder is fixed on the large bed back, one end of the first air plug rod is matched in the first air cylinder, the other end of the first air plug rod is fixed on the first air plug rod base, and the first air plug rod base is fixed on the small bed back;

The small bed backrest locking mechanism comprises a cushion supporting structure for supporting a small bed cushion, an air blocking rod and an exhaust pipe, wherein an exhaust port communicated with the outside is formed in the exhaust pipe, one end of a first ventilation pipeline is communicated with the first air cylinder, and the other end of the first ventilation pipeline is communicated to the exhaust pipe so as to be communicated with the outside through the exhaust port of the exhaust pipe;

One end of the air blocking rod is fixed on the cushion supporting structure, the other end of the air blocking rod is matched in the exhaust pipe, when the small bed cushion is subjected to pressure above a preset weight value, the small bed cushion compresses the cushion supporting structure to enable the other end of the air blocking rod to block an exhaust port of the exhaust pipe, so that the first air blocking rod cannot enter the first air cylinder, and the maximum inclination angle of the small bed backrest can only be smaller than or equal to that of the large bed backrest.

Optionally, the small bed back support structure further comprises a first spring sleeved on the first air plug rod to drive the first air plug rod to extend outwards.

Optionally, the first air plug rod base is provided with a sliding groove, the small bed backrest is provided with a connecting rod, and the small bed backrest is slidably fixed on the sliding groove on the first air plug rod base through the connecting rod;

When back bearing structure and little bed cushion are not pressed, the connecting rod is located the one end of sliding tray, and the other end of sliding tray extends to the cushion direction to when making little bed cushion subside, little bed cushion drives little bed back and moves down, drives the connecting rod and moves to little bed cushion direction along the sliding tray, thereby makes the contained angle between little bed back and the little bed cushion diminish.

Optionally, the cushion supporting structure comprises a cushion supporting upper base, a spring rod and a cushion supporting lower base, wherein the cushion supporting upper base is fixed with the small bed cushion, the cushion supporting lower base is fixed with the large bed cushion, one end of the spring rod is fixed with the cushion supporting upper base, and the other end of the spring rod is fixed with the cushion supporting lower base;

one end of the air blocking rod is fixed on the cushion support upper base, and the cushion support lower base is provided with an air passage serving as an exhaust pipe;

The elastic force of the spring rod and the arrangement position of the exhaust port enable the air blocking rod to block the exhaust port of the exhaust pipe when the small bed cushion is subjected to pressure above a preset weight value.

Optionally, the first inflator is provided with a first rotating shaft, the big bed backrest is fixed with a small bed backrest base, the small bed backrest base is provided with a first rotating groove matched with the first rotating shaft, and the first inflator is matched with the first rotating groove of the small bed backrest base through the first rotating shaft to realize the rotation fixation of the first inflator and the big bed backrest;

The cushion supports the lower base and is equipped with the second axis of rotation, big bed cushion is fixed with little bed cushion base, little bed cushion base be equipped with second axis of rotation complex second rotation groove, the cushion supports the lower base and realizes through the cooperation of second axis of rotation and little bed cushion base's second rotation groove that the cushion supported the lower base and little bed cushion base rotatory fixedly.

Optionally, the small bed backrest supporting structure further comprises a second air cylinder, a second air plug rod, a second spring and a second air channel, wherein one end of the second air cylinder is communicated with the first air cylinder, the other end of the second air cylinder is communicated with the spring rod through the second air channel, and the second spring is fixed on one side, close to the first air cylinder, of the second air plug rod;

the initial positions of the second air plug rod and the second spring are positioned in the second air cylinder, so that when the spring rod is compressed, air in the spring rod flows to the second air cylinder through the second air passage, the second air plug rod moves towards the first air cylinder, and the second spring is driven to extend out of the second air cylinder into the first air cylinder.

Optionally, the air blocking rod is a telescopic rod, and a notch is arranged on one side of the air blocking rod, which is close to the air outlet;

The cushion support upper base is fixed with a first guide rod, and the cushion support lower base is provided with a first guide pipeline matched with the first guide rod;

a double-head wedge block is arranged between the first guide pipeline and the exhaust pipe in a penetrating way, the tail end of the double-head wedge block is provided with a guide surface and a blocking surface, the guide surface is arranged towards the direction of the small bed cushion, and the blocking surface is arranged on the other side of the guide surface;

The double-end wedge block is sleeved with a third spring, and one end of the double-end wedge block extends into the first guide pipeline through the third spring;

The telescopic length of the air blocking rod and the length of the first guide rod enable the first guide rod to press the other end of the double-head wedge-shaped block to extend into the exhaust pipe to be clamped into the notch of the air blocking rod when the air blocking rod blocks the exhaust port when the small bed cushion moves downwards;

When the small bed cushion moves upwards, the air blocking rod can be lengthened, the first guide rod leaves the double-head wedge block first, and therefore one end of the double-head wedge block driven by the third spring stretches into the first guide pipeline to release the locking of the double-head wedge block to the air blocking rod.

Compared with the prior art, the technical scheme provided by the application has the following advantages:

The application provides a dental diagnosis and treatment bed which can identify and adapt to the demands of children and adults in different age groups.

When a child is light, indicating that its younger emotion control ability is limited, the maximum angle of inclination of the small bed back of the present application may be greater than the angle of inclination of the large bed back, thereby allowing the child to lie directly on the adult, which tight physical contact is effective in pacifying the child. The child is able to clearly feel the heart sounds of the adult, which sensation is particularly important in a medical setting, as it provides additional sense of security and comfort, helping to alleviate anxiety and anxiety that the child may feel during dental treatment.

At the same time, the weight gain of children indicates the age increase and the emotion control ability is correspondingly improved. Under the condition that the weight of the child pressed on the small bed cushion exceeds a preset weight value, the maximum inclination angle of the small bed backrest can only be parallel to the small bed, so that the child can be completely supported by the small bed, and the chest of a adult is prevented from being pressed for a long time.

Therefore, under the condition of meeting the physical and psychological demands of children in different ages, the application avoids dyspnea or other discomfort possibly caused by long-time lying on the chest of the adult, and improves the comfort of the adult.

The dental diagnosis and treatment bed provided by the application can balance and meet the comfort requirements of children and adults.

Drawings

Fig. 1 is a schematic structural view of a dental treatment bed according to an embodiment of the present application;

FIG. 2 is a second schematic diagram of a dental treatment table according to an embodiment of the present application;

FIG. 3 is one of the cross-sectional views of a dental treatment couch according to an embodiment of the present application;

FIG. 4 is a third schematic view of a dental treatment table according to an embodiment of the present application;

fig. 5 is a second cross-sectional view of a dental treatment couch according to an embodiment of the present application.

Wherein, 1, big bed; 11. large bed back rest; 12. a large bed cushion;

2. a small bed; 21. a small bed back rest; 211. a connecting rod; 22. a small bed cushion;

23. A small bed back support structure; 231. a first air plug rod; 232. a first stopper rod base; 2321. a sliding groove; 233. a first air cylinder; 234. a first ventilation duct; 235. a first spring; 236. a second air cylinder; 237. a second gas plug rod; 238. a second spring; 239. a second vent conduit;

24. a small bed back locking mechanism; 241. a cushion support structure; 2411. the cushion supports the upper base; 2412. a spring rod; 2413. the cushion supports the lower base;

242. a blocking rod; 2421. grooving; 243. an exhaust pipe; 2431. an exhaust port;

25. a first guide bar; 26. a first guide duct; 27. a double-ended wedge; 28 a third spring.

Detailed Description

The technical scheme of the application will be described below with reference to the accompanying drawings.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application, but the present application may be practiced otherwise than as described herein; it will be apparent that the embodiments in the specification are only some, but not all, embodiments of the application. It should be noted that, without conflict, the embodiments of the present application and features in the embodiments may be combined with each other.

In a first aspect, as shown in fig. 1-3, the present application provides a dental treatment couch, comprising:

a big bed 1 for lying a person, the big bed 1 comprising a big bed backrest 11 and a big bed cushion 12;

A cot 2 for lying a child, the cot 2 comprising a cot back 21, a cot cushion 22, a cot back support structure 23, and a cot back locking mechanism 24, the cot 2 being disposed above the big cot 1;

The small bed back support structure 23 is used for supporting the inclination angle of the small bed back 21;

the small bed back support structure 23 is capable of making the maximum tilting angle of the small bed back 21 larger than the tilting angle of the large bed back 11 when the weight of the child pressed against the small bed cushion 22 does not exceed a preset weight value;

when the weight of the child pressing on the small bed cushion 22 exceeds a preset weight value, the small bed back support structure 23 is locked by the small bed back locking mechanism 24 so that the maximum inclination angle of the small bed back 21 can be only smaller than or equal to the inclination angle of the large bed back 11.

Specifically, the small bed back support structure 23 includes a first air plug rod 231, a first air plug rod base 232, a first air cylinder 233 and a first air duct 234, wherein the first air cylinder 233 is fixed on the large bed back 11, one end of the first air plug rod 231 is matched in the first air cylinder 233, the other end of the first air plug rod 231 is fixed on the first air plug rod base 232, and the first air plug rod base 232 is fixed on the small bed back 21;

The small bed back locking mechanism 24 comprises a cushion supporting structure 241 for supporting the small bed cushion 22, an air blocking rod 242 and an exhaust pipe 243, wherein the exhaust pipe 243 is provided with an exhaust port 2431 communicated with the outside, one end of the first air duct 234 is communicated with the first air cylinder 233, and the other end of the first air duct 234 is communicated with the exhaust pipe 243 so as to be communicated with the outside through the exhaust port 2431 of the exhaust pipe 243;

One end of the air blocking rod 242 is fixed on the cushion supporting structure 241, the other end of the air blocking rod 242 is matched in the exhaust pipe 243, when the small bed cushion 22 is subjected to pressure above a preset weight value, the small bed cushion 22 compresses the cushion supporting structure 241 so that the other end of the air blocking rod 242 blocks the exhaust port 2431 of the exhaust pipe 243, and the first air blocking rod 231 cannot enter the first air cylinder 233, so that the maximum inclination angle of the small bed back 21 can only be smaller than or equal to the inclination angle of the large bed back 11.

Specifically, the small bed back support structure 23 further includes a first spring 235, where the first spring 235 is sleeved on the first air plug rod 231 to drive the first air plug rod 231 to extend outwards.

Specifically, the cushion support structure 241 includes a cushion support upper base 2411, a spring rod 2412, and a cushion support lower base 2413, where the cushion support upper base 2411 is fixed to the small bed cushion 22, the cushion support lower base 2413 is fixed to the large bed cushion 12, one end of the spring rod 2412 is fixed to the cushion support upper base 2411, and the other end of the spring rod 2412 is fixed to the cushion support lower base 2413;

One end of the air blocking rod 242 is fixed on the cushion support upper base 2411, and the cushion support lower base 2413 is provided with an air channel as an exhaust pipe 243;

the spring force of the spring rod 2412 and the arrangement position of the exhaust port 2431 are such that the air blocking rod 242 blocks the exhaust port 2431 of the exhaust pipe 243 when the small-bed cushion 22 is subjected to a pressure above a preset weight value.

The embodiment of the application can distinguish two cases to explain the specific working principle.

The dental diagnosis and treatment bed provided by the embodiment of the application is used in the method that after a adult lies on the big bed 1, the adult can walk to the small bed cushion 22 by himself or by a worker and sit stably, and then the back of the child leans against the small bed backrest 21, so that the head of the child is inclined, and the dental doctor can diagnose the teeth of the child conveniently.

After the child sits steady, when the weight of the child pressing on the small bed cushion 22 does not exceed the preset weight value:

At this time, the pressure on the small bed cushion 22 is insufficient to overcome the elastic force generated by the spring rod 2412 when the cushion support upper base 2411 drives the blocking rod 242 to move downward to the displacement of the exhaust port 2431 of the exhaust pipe 243. At this time, the exhaust pipe 243 communicates with the outside through the exhaust port 2431.

When the child leans the back against the bunk backrest 21, the pressure applied by the child's back to the bunk backrest 21 causes the first air plug lever base 232 to drive the first air plug lever 231 to move into the first air cylinder 233 against the elastic force of the first spring 235. At this time, the gas in the first cylinder 233 can enter the exhaust pipe 243 through the first vent pipe 234 and be discharged to the outside through the exhaust port 2431. In this case, the first air plug lever 231 and the first air cylinder 233 are in a state of being relatively movable.

This relatively movable state allows the maximum tilt angle of the small bed-rest 21 to be larger than the tilt angle of the large bed-rest 11.

When the child leaves the cot back 21, the first spring 235 urges the first air plug 231 to extend out of the first air cylinder 233, thereby returning the cot back 21 to the initial position.

Referring to fig. 4-5, after the child sits steady, the weight of the child pressing on the small bed cushion 22 exceeds a preset weight value:

At this time, the pressure on the small bed cushion 22 is sufficient to overcome the elastic force generated by the spring rod 2412 when the cushion support upper base 2411 drives the air blocking rod 242 to move downward to the displacement of the exhaust port 2431 of the exhaust pipe 243. At this time, the exhaust port 2431 of the exhaust pipe 243 is blocked by the blocking rod 242, and the inside of the exhaust pipe 243 cannot communicate with the outside.

When the back of the child leans against the small bed-rest 21, the pressure applied by the back of the child to the small bed-rest 21 can overcome the elastic force of the first spring 235 to drive the first air plug rod 231 to move in the first air cylinder 233. However, since the exhaust pipe 243 is not communicated with the outside, the gas in the first cylinder 233 cannot enter the exhaust pipe 243 through the first vent pipe 234. In this case, the first air plug lever 231 cannot move toward the inside of the first air cylinder 233.

This non-movable state results in the support structure of the first cylinder 233 and the first stopper rod 231 being changed from a flexible soft rod to a rigid rod that is not flexible. The distance between the large bed back 11 and the small bed back 21 cannot be reduced, and the maximum tilting angle of the small bed back 21 can be made smaller than or equal to the tilting angle of the large bed back 11 only by adjusting the lengths of the first air stopper rod 231 and the first spring 235.

The small bed back rest 21 has the beneficial effects that when the weight of the child is light, the age of the child is limited, and the maximum inclination angle of the small bed back rest 21 can be larger than that of the large bed back rest 11, so that the child is allowed to lie on the adult directly, and the child can be effectively calmed by the tight body contact. The child is able to clearly feel the heart sounds of the adult, which sensation is particularly important in a medical setting, as it provides additional sense of security and comfort, helping to alleviate anxiety and anxiety that the child may feel during dental treatment.

At the same time, the weight gain of children indicates the age increase and the emotion control ability is correspondingly improved. In the case that the weight of the child pressed against the small bed cushion 22 exceeds a preset weight value, the maximum inclination angle of the small bed back 21 of the present application can be parallel to the small bed 2 only, so that the child can be supported by the small bed 2 completely, avoiding pressing the chest of the adult for a long time.

Therefore, under the condition of meeting the physical and psychological demands of children in different ages, the application avoids dyspnea or other discomfort possibly caused by long-time lying on the chest of the adult, and improves the comfort of the adult. The dental diagnosis and treatment bed provided by the application can balance and meet the comfort requirements of children and adults.

Specifically, the first plug base 232 has a sliding groove 2321, the small bed back 21 has a connecting rod 211, and the small bed back 21 is slidably fixed on the sliding groove 2321 on the first plug base 232 through the connecting rod 211;

When the backrest supporting structure and the small bed cushion 22 are not pressed, the connecting rod 211 is located at one end of the sliding groove 2321, the other end of the sliding groove 2321 extends towards the cushion direction, so that when the small bed cushion 22 sinks, the small bed cushion 22 drives the small bed backrest 21 to move downwards, and drives the connecting rod 211 to move towards the small bed cushion 22 along the sliding groove 2321, and therefore an included angle between the small bed backrest 21 and the small bed cushion 22 is reduced.

The specific principle of operation is that when a child presses on the small bed cushion 22, the small bed cushion 22 will move in the direction of the large bed cushion 12. Since the small bed cushion 22 and the small bed backrest 21 are connected with each other, the small bed cushion 22 drives the connecting rod 211 of the small bed backrest 21 to move along the sliding groove 2321 on the first air plug rod base 232 toward the cushion direction, and the included angle between the small bed cushion 22 and the small bed backrest 21 is reduced.

The beneficial effects are that, because the density between the gas molecules is relatively small, for a child exceeding a preset weight value, when the back of the child presses against the small bed back 21, the gas lock still moves a small distance toward the first gas cylinder 233.

Through the design of sliding groove 2321, can make the child that surpasses the preset weight value drive the initial angle of little bed back 21 to the parallel journey length of rotation angle and the rotation angle of big bed back 11 of little bed back 21 to avoid the rotation angle of little bed back 21 to surpass the rotation angle of big bed back 11, lead to child to press in the chest of adult.

Specifically, the small bed back support structure 23 further includes a second air cylinder 236, a second air plug rod 237, a second spring 238 and a second air channel 239, one end of the second air cylinder 236 is communicated with the first air cylinder 233, the other end of the second air cylinder 236 is communicated with the spring rod 2412 through the second air channel 239, and the second spring 238 is fixed on one side of the second air plug rod 237 close to the first air cylinder 233;

The initial positions of the second air plug 237 and the second spring 238 are located in the second air cylinder 236, so that when the spring rod 2412 is compressed, the air in the spring rod 2412 flows to the second air cylinder 236 through the second air channel 239, and the second air plug 237 moves toward the first air cylinder 233, thereby driving the second spring 238 to extend from the second air cylinder 236 into the first air cylinder 233.

On the basis of the above embodiments, the embodiments of the present application will distinguish two cases to explain the specific working principle thereof.

After the child sits stably, when the weight of the child pressed against the small bed cushion 22 does not exceed the preset weight value, the first air stopper rod 231 and the first air cylinder 233 are in a relatively movable state:

the heavier the child on the small bed cushion 22, the greater the degree of compression of the spring rods 2412. The greater the degree of compression of the spring rod 2412, the greater the amount of gas flow within the spring rod 2412 through the second gas conduit 239 to the second gas cylinder 236. This causes the second air plug 237 to move more into the first air cylinder 233, thereby causing the second spring 238 to extend into the first air cylinder 233 by a longer length.

After the child sits stably, when the weight of the child pressed against the small bed cushion 22 exceeds a preset weight value, the state in which the gas in the first gas cylinder 233 cannot be discharged:

At this time, the second gas rod 237 cannot move into the first gas cylinder 233, and thus the gas in the spring rod 2412 cannot be discharged, and the spring rod 2412 is difficult to compress.

Therefore, even for a child with heavy weight, after the air blocking rod 242 blocks the air outlet 2431, the small bed back 21 cannot exceed the rotation angle of the large bed back 11, and the small bed cushion 22 gradually increases the air pressure in the spring rod 2412 after being lowered to a certain extent, so that the small bed cushion 22 is supported by the air pressure in the spring rod 2412, thereby sharing a part of the weight of the child.

The beneficial effects are that when the weight of the child does not exceed the preset weight value, the heavier the child is, the longer the second spring 238 extends into the first air cylinder 233 through the structure provided by the application. Thus, a child of medium weight needs to overcome a greater spring force to fully press against an adult than a child of lighter weight. The weight of the child pressed on the chest can be reduced as much as possible on the basis of ensuring that the child can cling to the chest.

When the weight of the child exceeds a preset weight value, the weight of the child pressed on the thighs can be reduced through the structure provided by the application, and uncomfortable feeling caused by the child pressing the thighs for a long time is reduced.

Specifically, the air blocking rod 242 is a telescopic rod, and a notch 2421 is formed on one side of the air blocking rod 242 close to the air outlet 2431;

The cushion support upper base 2411 is fixed with a first guide rod 25, and the cushion support lower base 2413 is provided with a first guide pipe 26 for cooperation with the first guide rod 25;

A double-end wedge-shaped block 27 is arranged between the first guide pipeline 26 and the exhaust pipe 243 in a penetrating way, the tail end of the double-end wedge-shaped block 27 is provided with a guide surface and a blocking surface, the guide surface is arranged towards the direction of the small bed cushion 22, and the blocking surface is arranged on the other side of the guide surface;

the double-end wedge block 27 is sleeved with a third spring 28, and one end of the double-end wedge block 27 extends into the first guide pipeline 26 through the third spring 28;

The telescopic length of the air blocking rod 242 and the length of the first guide rod 25 are such that when the air blocking rod 242 blocks the air outlet 2431 during downward movement of the small bed cushion 22, the first guide rod 25 presses the other end of the double-headed wedge 27 to extend into the air exhaust pipe 243 to be clamped into the notch 2421 of the air blocking rod 242;

When the small bed cushion 22 moves upwards, the air blocking rod 242 can be lengthened, so that the first guide rod 25 leaves the double-end wedge block 27 first, and one end of the double-end wedge block 27 driven by the third spring 28 extends into the first guide pipeline 26, so that the locking of the double-end wedge block 27 to the air blocking rod 242 is released.

The locking device has the beneficial effects that the problem that the locking of the exhaust port 2431 is wrongly released by the air blocking rod 242 when the gravity center of a child leans back can be avoided.

Specifically, the first air cylinder 233 is provided with a first rotation shaft, the large bed back 11 is fixed with a small bed back 21 base, the small bed back 21 base is provided with a first rotation groove matched with the first rotation shaft, and the first air cylinder 233 is matched with the first rotation groove of the small bed back 21 base through the first rotation shaft to realize rotation fixation of the first air cylinder 233 and the large bed back 11;

The cushion support lower base 2413 is equipped with the second axis of rotation, big bed cushion 12 is fixed with little bed cushion 22 base, little bed cushion 22 base is equipped with and rotates the groove with second axis of rotation complex second, cushion support lower base 2413 realizes through the cooperation of the second axis of rotation and the second groove of rotation of little bed cushion 22 base that cushion support lower base 2413 and little bed cushion 22 base rotatory fixedly.

It will be appreciated by those skilled in the art that this is a hinged structure to effect the flip-over movement of the small bed 2 relative to the large bed 1. Other ways of turning the cot 2 relative to the cot 1 can be implemented by those skilled in the art on this basis, such as by means of hinged hinges.

It should be noted that in this document, relational terms such as "first" and "second" and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. In addition, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element. Moreover, in the description of the embodiments of the present application, unless otherwise indicated, "/" means or, for example, a/B may mean a or B; "and/or" herein is merely an association relationship describing an association object, and means that three relationships may exist, for example, a and/or B may mean: a exists alone, A and B exist together, and B exists alone. Also, in the description of the embodiments of the present application, "plurality" means two or more than two.

The foregoing is only a specific embodiment of the application to enable those skilled in the art to understand or practice the application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown and described herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. Dental treatment couch, its characterized in that, dental treatment couch includes:

2. The dental diagnostic bed of claim 1, wherein the small bed back support structure comprises a first air plug rod, a first air plug rod base, a first air cylinder and a first air channel, wherein the first air cylinder is fixed on the large bed back, one end of the first air plug rod is matched in the first air cylinder, the other end of the first air plug rod is fixed on the first air plug rod base, and the first air plug rod base is fixed on the small bed back;

3. The dental treatment couch of claim 2 wherein the cot back support structure further comprises a first spring sleeved over the first air plug rod to urge the first air plug rod to extend outwardly.

4. The dental diagnostic bed of claim 2, wherein the first stopper rod base has a sliding groove, the small bed back has a connecting rod, and the small bed back is slidably fixed on the sliding groove on the first stopper rod base through the connecting rod;

5. The dental diagnostic bed of claim 2, wherein the cushion support structure comprises a cushion support upper base, a spring rod and a cushion support lower base, the cushion support upper base is fixed with the small bed cushion, the cushion support lower base is fixed with the large bed cushion, one end of the spring rod is fixed with the cushion support upper base, and the other end of the spring rod is fixed with the cushion support lower base;

6. The dental diagnosis and treatment bed according to claim 5, wherein the first air cylinder is provided with a first rotating shaft, the big bed backrest is fixed with a small bed backrest base, the small bed backrest base is provided with a first rotating groove matched with the first rotating shaft, and the first air cylinder is matched with the first rotating groove of the small bed backrest base through the first rotating shaft to realize the rotating fixation of the first air cylinder and the big bed backrest;

7. The dental diagnostic bed of claim 5, wherein the small bed rest support structure further comprises a second air tube, a second air plug rod, a second spring and a second air channel, wherein one end of the second air tube is communicated with the first air tube, the other end of the second air tube is communicated with the spring rod through the second air channel, and the second spring is fixed on one side of the second air plug rod close to the first air tube;

8. The dental diagnostic bed of claim 5, wherein the air blocking rod is a telescopic rod, and a notch is arranged on one side of the air blocking rod, which is close to the air outlet;