CN220495231U - Lower hanging balance arm and dental comprehensive treatment machine - Google Patents
Lower hanging balance arm and dental comprehensive treatment machine Download PDFInfo
- Publication number
- CN220495231U CN220495231U CN202321741002.7U CN202321741002U CN220495231U CN 220495231 U CN220495231 U CN 220495231U CN 202321741002 U CN202321741002 U CN 202321741002U CN 220495231 U CN220495231 U CN 220495231U
- Authority
- CN
- China
- Prior art keywords
- rod
- limiting
- lower hanging
- bracket
- balance arm
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 230000008878 coupling Effects 0.000 claims abstract description 3
- 238000010168 coupling process Methods 0.000 claims abstract description 3
- 238000005859 coupling reaction Methods 0.000 claims abstract description 3
- 230000005540 biological transmission Effects 0.000 claims description 22
- 230000006835 compression Effects 0.000 claims description 7
- 238000007906 compression Methods 0.000 claims description 7
- 230000001225 therapeutic effect Effects 0.000 claims description 7
- 238000007789 sealing Methods 0.000 claims description 6
- 230000007246 mechanism Effects 0.000 description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 238000006073 displacement reaction Methods 0.000 description 3
- 230000002159 abnormal effect Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 210000002445 nipple Anatomy 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Landscapes
- Manipulator (AREA)
Abstract
The utility model provides a lower hanging type balance arm and a dental comprehensive treatment machine, wherein the lower hanging type balance arm comprises a lower hanging shaft, a connecting shell, a connecting rod, a bracket, a spring adjusting rod, a limiting component and an air lock component; the two ends of the connecting shell are hinged between the lower hanging shaft and the bracket, the connecting rod is positioned in the connecting shell, the connecting rod is hinged between the lower hanging shaft and the bracket, and the lower hanging shaft, the connecting shell, the connecting rod and the bracket are connected through the hinging points of the connecting rod and the bracket to form a parallelogram structure; the limiting component is arranged in the connecting rod, a reserved cavity is formed at one end of the limiting component opposite to the lower hanging shaft, and one end of the spring adjusting rod is arranged in the reserved cavity; the other end of the spring adjusting rod is fixedly connected with the limiting component; the airlock assembly is located spacing subassembly top, and this airlock assembly is fixed in on the coupling housing, and this under-hanging balance arm through reasonable increase balance arm's inner space, the effectual solution balance arm has the limited, inconvenient technical problem of regulation angle when using.
Description
Technical Field
The utility model relates to the technical field of medical equipment, in particular to a lower hanging type balance arm and a dental comprehensive treatment machine.
Background
The dental therapeutic machine comprises a base and a chair frame, wherein a cushion and a backrest are arranged on the chair frame, a headrest is arranged at the upper end part of the backrest, a water tank is arranged on the chair frame, a spittoon with flushing and water supply functions is arranged on the water tank, a rotating arm which is rotationally connected with the water tank is arranged on the water tank, an instrument disc balance arm which is rotationally connected with the rotating arm is arranged on the rotating arm, and an instrument disc which is rotationally connected with the instrument disc balance arm is arranged at the other end of the instrument disc balance arm; the common balance arm in the market at present gives out abnormal sound or rocks the problem when the up-and-down motion, and the atress is uneven, influences the use experience. In addition, in the use process, the instrument panel is difficult to level in one step, and the use experience is poor.
In order to overcome the defects, the utility model patent with the Chinese publication number of CN216061197U discloses a balance arm which comprises a first joint, a connecting mechanism, a limiting mechanism, an adjusting mechanism and a second joint, wherein the first joint and the second joint are vertically arranged, the middle part of the first joint and the middle part of the second joint are respectively hinged with two ends of the connecting mechanism, the upper end part of the first joint is connected with the connecting mechanism through the limiting mechanism, and the upper end part of the second joint is connected with the connecting mechanism through the adjusting mechanism. The distance between the first pin shaft and the second pin shaft is adjusted along with the rotation of the first transmission rod, so that the included angle between the second joint and the connecting mechanism is adjusted, the first pin shaft and the second pin shaft move in opposite directions or in opposite directions at the same time, the second joint and the first joint are vertically and parallelly arranged, one-step rapid adjustment is realized, the stress of the whole equipment is uniform, and the service life is prolonged.
The utility model with the Chinese publication number of CN216061197U can solve the problems that abnormal sound or shaking is generated during exercise, uneven stress is caused, and the use experience is affected; however, the inner space of the balance arm is too narrow, so that the adjustment of the pretightening force of the elastic structure in the balance arm is inconvenient, and the balance arm has the technical problems of limited adjusting angle and inconvenient adjustment during rotation adjustment.
Disclosure of Invention
Therefore, the utility model aims to avoid the defects in the prior art and provide the lower hanging type balance arm, and the technical problems of limited adjusting angle and inconvenient adjustment of the balance arm during rotation adjustment are effectively solved by reasonably increasing the inner space of the balance arm.
In order to achieve the above purpose, the lower hanging type balance arm comprises a lower hanging shaft, a connecting shell, a connecting rod, a bracket, a spring adjusting rod, a limiting component and an air lock component; the two ends of the connecting shell are respectively hinged to the lower hanging shaft and the bracket, the hinging points are respectively positioned at the upper parts of the matching parts of the lower hanging shaft and the connecting shell and the matching parts of the bracket and the connecting shell, the connecting rod is positioned in the connecting shell, the two ends of the connecting rod are respectively hinged to the lower hanging shaft and the bracket, and the hinging points are respectively positioned at the lower parts of the matching parts of the lower hanging shaft and the connecting shell and the matching parts of the bracket and the connecting shell; the lower hanging shaft, the connecting shell, the connecting rod and the bracket are connected through the hinging points of the lower hanging shaft, the connecting shell, the connecting rod and the bracket to form a parallelogram structure; the limiting assembly is arranged in the connecting rod, a reserved cavity is formed in one end of the limiting assembly, opposite to the lower hanging shaft, of the limiting assembly, one end of the spring adjusting rod is arranged in the reserved cavity, and the spring adjusting rod freely slides along the reserved cavity; the other end of the spring adjusting rod is fixedly connected with the limiting component, and one end of the limiting component, which is far away from the spring adjusting rod, is hinged with the bracket; the air lock component is fixed on the connecting shell and acts with the limiting component.
Further, the airlock assembly comprises an airlock valve body, a movable compression bar, a baffle and a pressing plate; the air lock valve is characterized in that an air inlet connector is arranged at one end of the air lock valve body, the baffle is arranged at the lower end of the air valve body, one end of the movable pressing rod is arranged inside the air lock valve body, the other end of the movable pressing rod penetrates through the baffle to extend outwards and is fixedly connected with the pressing plate, and the lower surface of the pressing plate is correspondingly arranged on the peripheral wall of the transmission rod.
Further, the limiting assembly comprises a limiting connecting rod, a transmission rod and an elastic assembly; one end of the limiting connecting rod is hinged with the transmission rod, the other end of the limiting connecting rod is hinged with the bracket through a first rotating shaft, and one end of the transmission rod, which is far away from the limiting connecting rod, is fixedly connected with the elastic component.
Further, one end of the connecting shell is hinged with the upper part of the bracket through an upper limiting rod, one end of the connecting rod is hinged with the lower part of the bracket through a lower limiting rod, and the upper limiting rod and the lower limiting rod are both positioned in the connecting shell; and the limiting connecting rod is positioned between the upper limiting rod and the lower limiting rod.
Further, the periphery of the transmission rod is also sleeved with a first limiting block, the transmission rod is positioned in the first limiting block and slides left and right, and the upper end of the first limiting block is fixedly connected with the connecting shell.
Further, the elastic assembly comprises a spring, a first mounting block and a second mounting block; the first mounting block and the second mounting block are fixed at two ends of the spring, and the first mounting block is fixedly connected with the transmission rod; the second mounting block is arranged opposite to the lower hanging shaft.
Further, one end of the spring adjusting rod far away from the lower hanging shaft is in threaded connection with the second mounting block, the spring adjusting rod is located in the reserved cavity and slides left and right, a second limiting block is further sleeved on the periphery of the spring adjusting rod, and the upper end of the second limiting block is fixedly connected with the connecting shell
Further, one end of the connecting shell is hinged with the upper part of the lower hanging shaft through a second rotating shaft, one end of the connecting rod is hinged with the lower part of the lower hanging shaft through a third rotating shaft, and a supporting rod is further arranged on the third rotating shaft; one end of the supporting rod is connected with the third rotating shaft, and the other end of the supporting rod is hinged with the lower hanging shaft through a fourth rotating shaft.
Further, the device also comprises a sealing shell and a bottom shell, wherein the sealing shell is arranged at the lower part of the connecting shell; the bottom shell is arranged on the upper surface of the connecting shell and is opposite to the reserved cavity.
The utility model also provides a dental unit comprising a therapeutic unit body and the lower hanging type balance arm, wherein the lower hanging type balance arm is fixed on the therapeutic unit body.
Compared with the prior art, the utility model has the following beneficial effects:
(1) The lower hanging type balance arm provided by the utility model is characterized in that the structural design of the lower hanging shaft, the connecting shell, the connecting rod and the bracket is reasonably improved; the lower hanging shaft, the connecting shell, the connecting rod and the bracket are connected through the hinging points to form a parallelogram structure, and the upper and lower displacement of the lower hanging type balance arm is realized by utilizing the characteristic of the parallelogram in a mode of rotating the parallelogram, so that the lower hanging type balance arm is simple and convenient; the spring adjusting rod is provided with a limiting component, a lower hanging shaft is arranged on the lower hanging shaft, a spring adjusting rod is arranged on the lower hanging shaft, and the spring adjusting rod is arranged on the lower hanging shaft; not only can adjust the spring regulation pole alone, realize the convenient adjustment to inside elastic construction pretightning force, but also can make the balance arm when rotating the regulation, the spring regulation pole freely slides along the reservation chamber, the effectual balance arm of solving has the regulation angle limited, adjusts inconvenient technical problem when rotating the regulation.
(2) According to the lower hanging type balance arm, through the arrangement of the air lock assembly, the opening and closing of the air lock assembly can be controlled through air pressure, so that the limiting assembly can be effectively locked, the fixation between the bracket and the connecting shell is realized, and the rotation angle between the bracket and the connecting shell is ensured to be locked; and the control is convenient and the operation is simple.
Drawings
The utility model will be further described with reference to the accompanying drawings, in which embodiments do not constitute any limitation of the utility model, and other drawings can be obtained by one of ordinary skill in the art without inventive effort from the following drawings.
Fig. 1 is a perspective view of a down-hanging balance arm in the present utility model.
Fig. 2 is an exploded view of the lower hanger type balance arm of the present utility model.
Fig. 3 is a cross-sectional view of a down-hanging balance arm in the present utility model.
Fig. 4 is a schematic structural view of a part of a lower hanging type balance arm in the present utility model.
Fig. 5 is a perspective view of an airlock assembly of this utility model.
Fig. 6 is a front view of an airlock assembly of this utility model.
Fig. 7 is a schematic view of the adjusting of different angles of the underhung balance arm in the utility model.
The figure comprises the following components:
a lower hanging shaft 1;
a connecting shell 2, an upper limit rod 21 and a second rotating shaft 22;
a connecting rod 3, a lower limit rod 31 and a third rotating shaft 32;
a bracket 4;
a spring adjusting rod 5 and a second limiting block 51;
the limiting assembly 6, the limiting connecting rod 61, the first rotating shaft 611, the transmission rod 62, the elastic assembly 63, the spring 631, the first mounting block 632, the second mounting block 633 and the first limiting block 64;
the air lock assembly 7, the air lock valve body 71, the movable compression bar 72, the baffle 73, the pressing plate 74 and the air inlet connector 75;
a reserved cavity 8;
a support rod 9, a fourth rotation shaft 91;
a seal case 10;
a bottom case 11.
Detailed Description
The utility model will be further described with reference to the following examples.
The following detailed description of the utility model is provided in connection with the accompanying drawings to facilitate understanding and grasping of the technical scheme of the utility model.
In this embodiment, it should be understood that the terms "middle," "upper," "lower," "top," "right," "end," "front," "back," "middle," "upper," "lower," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, and are merely for convenience in describing the utility model, and do not indicate or imply that the devices or elements being referred to must have a particular orientation, be configured and operated in a particular orientation, and thus should not be construed as limiting the utility model.
In this embodiment, if not specifically described, the members may be connected or fixed by bolts, pins, or the like, which are commonly used in the prior art, and therefore, the details thereof will not be described in this embodiment.
Example 1
As shown in fig. 1 to 7, the present embodiment provides a lower hanging type balance arm, which comprises a lower hanging shaft 1, a connecting shell 2, a connecting rod 3, a bracket 4, a spring adjusting rod 5, a limiting component 6 and an air lock component 7; the two ends of the connecting shell 2 are respectively hinged to the lower hanging shaft 1 and the bracket 4, the hinging point is positioned at the lower part of the matching position of the lower hanging shaft 1 and the connecting shell 2 and the matching position of the bracket 4 and the connecting shell 2, the connecting rod 3 is positioned inside the connecting shell 2, the two ends of the connecting rod 3 are respectively hinged to the lower hanging shaft 1 and the bracket 4, and the hinging point is positioned at the upper part of the matching position of the lower hanging shaft 1 and the connecting shell 2 and the matching position of the bracket 4 and the connecting shell 2; the lower hanging shaft 1, the connecting shell 2, the connecting rod 3 and the bracket 4 are connected through the hinging points of the lower hanging shaft, the connecting shell and the bracket to form a parallelogram structure; the limiting assembly 6 is arranged in the connecting rod 3, a reserved cavity 8 is formed in one end of the limiting assembly 6 opposite to the lower hanging shaft 1, one end of the spring adjusting rod 5 is arranged in the reserved cavity 8, and the spring adjusting rod 5 freely slides along the reserved cavity 8; the other end of the spring adjusting rod 5 is fixedly connected with the limiting component 6, and one end, away from the spring adjusting rod 5, of the limiting component 6 is hinged with the bracket 4; the airlock assembly 7 is fixed to the connection housing 2 and interacts with the limit assembly 6.
The lower hanging type balance arm provided by the utility model is characterized in that the structural design of the lower hanging shaft 1, the connecting shell 2, the connecting rod 3 and the bracket 4 is reasonably improved; the lower hanging shaft 1, the connecting shell 2, the connecting rod 3 and the bracket 4 are connected through the hinging points to form a parallelogram structure, and the upper and lower displacement of the lower hanging type balance arm is realized by utilizing the characteristic of the parallelogram in a mode of rotating the parallelogram, so that the lower hanging type balance arm is simple and convenient; the reservation cavity 8 arranged between the limit component 6 and the lower hanging shaft 1 is matched, so that the reasonable increase of the internal space of the balance arm can be realized, and meanwhile, the spring adjusting rod 5 and the lower hanging shaft 1 are mutually spaced; not only can adjust spring regulation pole 5 alone, realize the convenient adjustment to inside elastic construction pretightning force, but also can make the balance arm when rotating the regulation, spring regulation pole 5 freely slides along reserving chamber 8, the effectual balance arm of solution exists the limited, inconvenient technical problem of regulation of angle of regulation when rotating the regulation.
According to the lower hanging type balance arm, through the arrangement of the air lock assembly 7, the opening and closing of the air lock assembly 7 can be controlled through air pressure, the limiting assembly 6 can be effectively locked, the fixation between the bracket 4 and the connecting shell 2 is realized, and the rotation angle between the bracket 4 and the connecting shell 2 is guaranteed to be locked; and the control is convenient and the operation is simple.
In the preferred embodiment, the airlock assembly 7 comprises an airlock valve body 71, a movable compression bar 72, a baffle 73 and a pressure plate 74; an air inlet nozzle 75 is arranged at one end of the air lock valve body 71, the baffle 73 is arranged at the lower end of the air valve body, one end of the movable pressing rod 72 is arranged inside the air lock valve body 71, the other end of the movable pressing rod penetrates through the baffle 73 to extend outwards and is fixedly connected with the pressing plate 74, and the lower surface of the pressing plate 74 is arranged corresponding to the peripheral wall of the transmission rod 62; through the cooperation of airlock valve body 71, movable depression bar 72, baffle 73 and clamp plate 74, realize the spacing of clamp plate 74 to transfer line 62, specifically, through ventilating to air inlet nipple 75, the inside atmospheric pressure of airlock valve body 71 increases, promotes movable depression bar 72 and clamp plate 74 and moves down to press down fixedly to transfer line 62 through clamp plate 74, realize locking spacing subassembly 6, guarantee that the angle that coupling shell 2 and bracket 4 are connected is restricted firmly.
In the preferred embodiment, the limiting assembly 6 comprises a limiting connecting rod 61, a transmission rod 62 and an elastic assembly 63; one end of the limiting connecting rod 61 is hinged with the transmission rod 62, the other end of the limiting connecting rod 61 is hinged with the bracket 4 through a first rotating shaft 611, and one end of the transmission rod 62 away from the limiting connecting rod 61 is fixedly connected with the elastic component 63; wherein the control balance arm adjusts the stationary resistance force to the pretension force of the elastic assembly 63.
In a preferred embodiment, one end of the connecting shell 2 is hinged to the upper part of the bracket 4 through an upper limit rod 21, one end of the connecting rod 3 is hinged to the lower part of the bracket 4 through a lower limit rod 31, and the upper limit rod 21 and the lower limit rod 31 are both positioned in the connecting shell 2; and this spacing connecting rod 61 is located go up between gag lever post 21 and the lower gag lever post 31, wherein, go up gag lever post 21 and lower gag lever post 31 all are located connect inside the shell 2, avoid going up gag lever post 21 and lower gag lever post 31 to leak outward, improve the whole aesthetic property of hanging balance arm.
In the preferred embodiment, a first limiting block 64 is further sleeved on the outer periphery of the transmission rod 62, the transmission rod 62 is located in the first limiting block 64 and slides left and right, and the upper end of the first limiting block 64 is fixedly connected with the connection shell 2.
In a preferred embodiment, the elastic assembly 63 includes a spring 631, a first mounting block 632, and a second mounting block 633; the first mounting block 632 and the second mounting block 633 are fixed at two ends of the spring 631, and the first mounting block 632 is fixedly connected with the transmission rod 62; the second mounting block 633 is disposed opposite to the lower hanger 1.
In a preferred embodiment, one end of the spring adjusting rod 5, which is far away from the lower hanging shaft 1, is in threaded connection with the second mounting block 633, and the spring adjusting rod 5 is located in the reserved cavity 8 and slides left and right, a second limiting block 51 is further sleeved on the periphery of the spring adjusting rod 5, and the upper end of the second limiting block 51 is further fixedly connected with the connection shell 2.
In the preferred embodiment, one end of the connecting shell 2 is hinged to the upper part of the lower hanging shaft 1 through a second rotating shaft 22, one end of the connecting rod 3 is hinged to the lower part of the lower hanging shaft 1 through a third rotating shaft 32, and a supporting rod 9 is further arranged on the third rotating shaft 32; one end of the supporting rod 9 is connected with the third rotating shaft 32, and the other end is hinged with the lower hanging shaft 1 through a fourth rotating shaft 91; the second rotating shaft 22, the third rotating shaft 32 and the fourth rotating shaft 91 are located inside the connecting shell 2, so that the second rotating shaft 22, the third rotating shaft 32 and the fourth rotating shaft 91 are prevented from leaking outwards, and the overall attractiveness of the hanging balance arm is improved.
In the preferred embodiment, the device also comprises a sealing shell 10 and a bottom shell 11, wherein the sealing shell 10 is arranged at the lower part of the connecting shell 2; the bottom shell 11 is arranged on the upper surface of the connecting shell 2 and is opposite to the reserved cavity 8; due to the arrangement of the sealing shell 10, the adjustment of the spring adjusting rod 5 is convenient.
The working principle of the under-planting type balance arm provided by the embodiment is as follows:
two ends of the lower hanging shaft 1 are respectively and rotatably connected with one ends of the connecting shell 2 and the connecting rod 3 through a second rotating shaft 22 and a third rotating shaft 32; the two ends of the bracket 4 are respectively connected with the other ends of the connecting shell 2 and the connecting rod 3 in a rotating way through the lower limiting rod 31 and the upper limiting rod 21, so that a four-bar mechanism is formed, and the vertical displacement of the hanging balance arm is realized in a parallelogram rotating way by utilizing the characteristics of a parallelogram. Meanwhile, the limiting component 6 is fixed on the connecting shell, the extending end of the limiting component is connected with the bracket 4 through the limiting connecting rod 61, and the airlock component 7 is arranged on the bottom shell 11 and is opposite to the limiting component 6; when the lower hanging balance arm arranged in a parallelogram rotates, only the airlock assembly is required to be opened to rotate the bracket 4, and after the bracket 4 rotates to the rated position, the airlock assembly 7 is closed, so that the connection angle between the connection shell 2 and the bracket 4 is limited, and the fixation of the hanging balance arm is completed.
The resistance for controlling the balance arm to adjust and fix is the pretension force of the elastic component 63, so that the balance arm may need to be adjusted according to different conditions of the lower hanging type balance arm, and only the left and right positions of the spring adjusting rod 5 in the reserved cavity 8 need to be adjusted, so that the balance arm is convenient to fix; and meanwhile, the positions of the lower limiting rod 31 and the upper limiting rod 21 are adjusted to one end of the bracket 4, and the upper limiting rod and the lower limiting rod are connected to the bracket 4, so that the upper limiting and the lower limiting of the whole balance arm can be realized, and the adjustment of the device of the spring adjusting rod 5 is not influenced.
Example 2
The embodiment provides a dental unit, which comprises a therapeutic unit body and the lower hanging type balance arm, wherein the lower hanging type balance arm is fixed on the therapeutic unit body.
Finally, it should be noted that the above embodiments are only for illustrating the technical solution of the present utility model, and not for limiting the scope of the present utility model, and although the present utility model has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions can be made to the technical solution of the present utility model without departing from the spirit and scope of the technical solution of the present utility model.
Claims (10)
1. A lower hanging balance arm which is characterized in that: the device comprises a lower hanging shaft, a connecting shell, a connecting rod, a bracket, a spring adjusting rod, a limiting assembly and an air lock assembly; the two ends of the connecting shell are respectively hinged to the lower hanging shaft and the bracket, the hinging points are respectively positioned at the upper parts of the matching parts of the lower hanging shaft and the connecting shell and the matching parts of the bracket and the connecting shell, the connecting rod is positioned in the connecting shell, the two ends of the connecting rod are respectively hinged to the lower hanging shaft and the bracket, and the hinging points are respectively positioned at the lower parts of the matching parts of the lower hanging shaft and the connecting shell and the matching parts of the bracket and the connecting shell; the lower hanging shaft, the connecting shell, the connecting rod and the bracket are connected through the hinging points of the lower hanging shaft, the connecting shell, the connecting rod and the bracket to form a parallelogram structure; the limiting assembly is arranged in the connecting rod, a reserved cavity is formed in one end of the limiting assembly, opposite to the lower hanging shaft, of the limiting assembly, one end of the spring adjusting rod is arranged in the reserved cavity, and the spring adjusting rod freely slides along the reserved cavity; the other end of the spring adjusting rod is fixedly connected with the limiting component, and one end of the limiting component, which is far away from the spring adjusting rod, is hinged with the bracket; the air lock component is fixed on the connecting shell and acts with the limiting component.
2. The underhung balance arm of claim 1, wherein: the air lock assembly comprises an air lock valve body, a movable compression bar, a baffle plate and a compression plate; one end of the air lock valve body is provided with an air inlet connector, the baffle plate is arranged at the lower end of the air lock valve body, one end of the movable compression bar is arranged inside the air lock valve body, and the other end of the movable compression bar penetrates through the baffle plate to extend outwards and is fixedly connected with the pressing plate.
3. A down-link balance arm as claimed in claim 1 or 2, wherein: the limiting assembly comprises a limiting connecting rod, a transmission rod and an elastic assembly; one end of the limiting connecting rod is hinged with the transmission rod, the other end of the limiting connecting rod is hinged with the bracket through a first rotating shaft, and one end of the transmission rod, which is far away from the limiting connecting rod, is fixedly connected with the elastic component.
4. A down-link balance arm as defined in claim 3, wherein: one end of the connecting shell is hinged with the upper part of the bracket through an upper limiting rod, one end of the connecting rod is hinged with the lower part of the bracket through a lower limiting rod, and the upper limiting rod and the lower limiting rod are both positioned in the connecting shell; and the limiting connecting rod is positioned between the upper limiting rod and the lower limiting rod.
5. The underhung balance arm of claim 4, wherein: the transmission rod periphery still overlaps and is equipped with first stopper, and should the transmission rod is located slide about in the first stopper, just should first stopper upper end with coupling shell fixed connection.
6. A down-link balance arm as defined in claim 3, wherein: the elastic component comprises a spring, a first mounting block and a second mounting block; the first mounting block and the second mounting block are fixed at two ends of the spring, and the first mounting block is fixedly connected with the transmission rod; the second mounting block is arranged opposite to the lower hanging shaft.
7. The underhung balance arm of claim 6, wherein: one end of the spring adjusting rod, which is far away from the lower hanging shaft, is in threaded connection with the second mounting block, the spring adjusting rod is located in the reserved cavity and slides left and right, a second limiting block is further sleeved on the periphery of the spring adjusting rod, and the upper end of the second limiting block is fixedly connected with the connecting shell.
8. The underhung balance arm of claim 6 or 7, wherein: one end of the connecting shell is hinged with the upper part of the lower hanging shaft through a second rotating shaft, one end of the connecting rod is hinged with the lower part of the lower hanging shaft through a third rotating shaft, and a supporting rod is further arranged on the third rotating shaft; one end of the supporting rod is connected with the third rotating shaft, and the other end of the supporting rod is hinged with the lower hanging shaft through a fourth rotating shaft.
9. The underhung balance arm of claim 8, wherein: the sealing shell is arranged at the lower part of the connecting shell; the bottom shell is arranged on the upper surface of the connecting shell and is opposite to the reserved cavity.
10. A dental unit comprising: comprising a therapeutic machine body and a lower hanging balance arm according to any one of claims 1-9, wherein the lower hanging balance arm is fixed on the therapeutic machine body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321741002.7U CN220495231U (en) | 2023-07-05 | 2023-07-05 | Lower hanging balance arm and dental comprehensive treatment machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321741002.7U CN220495231U (en) | 2023-07-05 | 2023-07-05 | Lower hanging balance arm and dental comprehensive treatment machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220495231U true CN220495231U (en) | 2024-02-20 |
Family
ID=89879151
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321741002.7U Active CN220495231U (en) | 2023-07-05 | 2023-07-05 | Lower hanging balance arm and dental comprehensive treatment machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220495231U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118356322A (en) * | 2024-06-18 | 2024-07-19 | 广州艾捷斯医疗器械有限公司 | Balance arm |
-
2023
- 2023-07-05 CN CN202321741002.7U patent/CN220495231U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118356322A (en) * | 2024-06-18 | 2024-07-19 | 广州艾捷斯医疗器械有限公司 | Balance arm |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN220495231U (en) | Lower hanging balance arm and dental comprehensive treatment machine | |
| JP2505458B2 (en) | Height-adjustable swivel chair with gas pressure spring | |
| JPH11503053A (en) | Dental chair equipment | |
| CA1250217A (en) | Tilting mechanism for a chair | |
| CN110812097A (en) | Sliding headrest | |
| CN212454929U (en) | Three-degree-of-freedom support for small fan | |
| CN210018579U (en) | Seat adjusting device capable of adjusting inclination angle | |
| CN215351996U (en) | Three-freedom-degree dynamic platform for cinema | |
| CN221060110U (en) | Backrest device and seat | |
| CN112908134A (en) | Medical orthodontic training device | |
| CN221179904U (en) | Headrest assembly and seat | |
| CN217510143U (en) | Single frame net seat pedal | |
| CN221865227U (en) | Novel leaning chair backrest pushing structure | |
| CN214858541U (en) | Supporting frame for postoperative patient with eye fundus disease | |
| CN211884472U (en) | Treatment chair that otolaryngology branch of academic or vocational study was used | |
| CN221044664U (en) | Bracket for artificial kidney model of fetus | |
| CN212815687U (en) | Water pipe fixing device of water pumping teapot | |
| CN217129224U (en) | Joint formula furniture hinge | |
| CN217723726U (en) | Self-adjusting doctor seat | |
| CN2410930Y (en) | Seat arm support structure | |
| CN219049433U (en) | Foot bath barrel with adjustable angle | |
| CN217695999U (en) | Cooking utensil | |
| CN219963401U (en) | Back massage instrument | |
| CN211550564U (en) | Butterfly valve opening and closing mechanism | |
| CN214129342U (en) | Acupuncture physiotherapy auxiliary device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |