CN110749073A - Suspension type mounting structure and air conditioner - Google Patents
Suspension type mounting structure and air conditioner Download PDFInfo
- Publication number
- CN110749073A CN110749073A CN201911024371.2A CN201911024371A CN110749073A CN 110749073 A CN110749073 A CN 110749073A CN 201911024371 A CN201911024371 A CN 201911024371A CN 110749073 A CN110749073 A CN 110749073A
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- 239000000725 suspension Substances 0.000 title claims abstract description 26
- 230000001154 acute effect Effects 0.000 claims description 8
- 230000009471 action Effects 0.000 abstract description 6
- 230000005484 gravity Effects 0.000 abstract description 6
- 238000013461 design Methods 0.000 abstract description 5
- 238000012545 processing Methods 0.000 abstract description 4
- 238000000034 method Methods 0.000 description 12
- 238000009434 installation Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 238000005299 abrasion Methods 0.000 description 3
- 238000013016 damping Methods 0.000 description 3
- 230000002159 abnormal effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000013013 elastic material Substances 0.000 description 2
- 230000008020 evaporation Effects 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/89—Arrangement or mounting of control or safety devices
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Other Air-Conditioning Systems (AREA)
Abstract
The invention provides a suspension type mounting structure and an air conditioner. The suspension type mounting structure provided by the invention has the advantages that the guide pillar is arranged on the box body, the guide groove is formed in the mounting frame, the box body is connected with the mounting frame through the matching and connecting relation of the guide pillar and the guide groove, the structure is simple, and the processing is convenient. In addition, the gravity action of the box body enables the box body to be borne by the mounting frame, and when the box body is required to be detached from the mounting frame, the box body is only required to be moved to enable the guide pillar to slide out of the guide groove. The quick assembly and disassembly of the box body and the mounting frame are realized by using a simple connection mode, the operation is convenient, the realization is easy, and the humanized and industrialized design is met.
Description
Technical Field
The invention belongs to the technical field of air conditioners, and particularly relates to a suspension type mounting structure and an air conditioner.
Background
The electrical box is a common component in many large-sized electrical appliances, and some important electrical components can be assembled and placed in the electrical box or used for being connected with other parts needing electrical connection.
The box-type components (here, the electrical box is taken as an example) are mounted on relatively fixed or firm racks by fastening with fasteners, and the fixation is relatively conventional and is an option which most designers easily think of or prefer.
However, the above conventional fixing method still has inconvenience in disassembly, assembly, maintenance and repair, and requires the use of tools; the disassembly, the overhaul, the use of tools and the like in a limited space are inconvenient to operate, and the integral disassembly and assembly of the electrical box are realized.
Disclosure of Invention
The invention aims to provide a suspension type mounting structure and an air conditioner, and aims to solve the problem that box-type parts in the prior art are inconvenient to disassemble and assemble.
In order to achieve the purpose, the invention adopts the technical scheme that: the utility model provides a suspension type mounting structure, including the mounting bracket and with the box of being connected can be dismantled to the mounting bracket, be provided with the guide pillar on the box, offer on the mounting bracket and be used for supplying the guide slot that the guide pillar slided, perhaps be provided with the guide pillar on the mounting bracket, offer on the box and be used for supplying the guide slot that the guide pillar slided.
Further, the mounting bracket is fixed in the vertical direction the box, the guide slot is seted up the side of mounting bracket, the guide slot includes the section of sliding and spacing section, the blind end of spacing section is less than in the horizontal direction the entry of the section of sliding.
Furthermore, the sliding section and the limiting section are both arranged along a straight line, the limiting section is arranged along the vertical direction, and the included angle between the sliding section and the limiting section is within 90 degrees.
Furthermore, the sliding section and the limiting section are both arranged along a straight line, the limiting section is arranged along the vertical direction, and an included angle between the sliding section and the limiting section is an obtuse angle.
Furthermore, the sliding section and the limiting section are both arranged along a straight line, and an included angle is formed between the arranging direction of the limiting section and the vertical direction and is an acute angle.
Further, the guide groove is formed in the top of the mounting frame.
Further, the mounting bracket comprises a vertical plate, a bottom plate connected with the vertical plate, and two side plates arranged on the fixing plate, wherein the top or the side of each side plate is provided with the guide groove.
Furthermore, one surface of the vertical plate facing the box body is a matching surface, and an elastic part is arranged on the matching surface.
Further, the elastic component is a sponge.
Another object of the present invention is to provide an air conditioner including the above suspension type mounting structure.
The suspension type mounting structure provided by the invention has the beneficial effects that: compared with the prior art, the connecting structure has the advantages that the guide pillar is arranged on the box body, the guide groove is formed in the mounting frame, the box body is connected with the mounting frame through the matching and connecting relation of the guide pillar and the guide groove, the structure is simple, and the processing is convenient. In addition, the gravity action of the box body enables the box body to be borne by the mounting frame, and when the box body is required to be detached from the mounting frame, the box body is only required to be moved to enable the guide pillar to slide out of the guide groove. The quick assembly and disassembly of the box body and the mounting frame are realized by using a simple connection mode, the operation is convenient, the realization is easy, and the humanized and industrialized design is met.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.
Fig. 1 is a schematic diagram of an exploded view of a suspended mounting structure provided by an embodiment of the invention, with portions of the structure not shown;
FIG. 2 is a schematic view of a mounting structure of a suspended mounting structure provided by an embodiment of the invention, with portions of the structure not shown;
fig. 3 is a schematic view of a disassembled structure of a suspension type mounting structure provided by the embodiment of the invention, and a part of the structure is not shown;
fig. 4 is a schematic bottom view of a suspension mounting structure according to an embodiment of the present invention;
fig. 5 is a partial cross-sectional structural schematic view of a suspension mounting structure provided in accordance with an embodiment of the present invention;
fig. 6 is a schematic partial structure diagram of an air conditioner according to an embodiment of the present invention.
Wherein, in the drawings, the reference numerals are mainly as follows:
1. a mounting frame; 11. a vertical plate; 12. a base plate; 13. a side plate;
2. a box body; 3. a guide post;
4. a guide groove; 41. a slipping section; 42. a limiting section;
5. an elastic member; 6. an evaporation chamber; 7. an evaporator.
Detailed Description
In order to make the technical problems, technical solutions and advantageous effects to be solved by the present invention more clearly apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Referring to fig. 1 to 4 together, a suspension type mounting structure according to an embodiment of the present invention will be described. Suspension type mounting structure, including mounting bracket 1 and box 2, mounting bracket 1 and box 2 can dismantle the connection. Specifically, according to the first method, the guide pillar 3 is arranged on the box body 2, the guide groove 4 is formed in the mounting frame 1, the box body 2 is hung on the mounting frame 1 after the guide pillar 3 and the guide groove 4 are connected and fixed in a sliding mode, and the box body 2 is stably connected with the mounting frame 1 under the action of gravity. When the box body 2 needs to be detached from the mounting frame 1, only the box body 2 needs to be moved to enable the guide post 3 to slide out of the guide groove 4. In the second method, the box body 2 can be provided with the guide groove 4, and the mounting frame 1 is provided with the guide post 3, and the principle and the first method are the same. The two methods have the same effect, a more appropriate mode can be selected according to actual conditions and requirements, generally, the volume of the mounting frame 1 is much smaller than that of the box body 2, here, the first method is selected, which is described in detail below, and the second method is not described again.
Compared with the prior art, the suspension type mounting structure provided by the invention has the advantages that the guide pillar 3 is arranged on the box body 2, the guide groove 4 is formed in the mounting frame 1, the box body 2 is connected with the mounting frame 1 through the matching and connecting relation of the guide pillar 3 and the guide groove 4, the structure is simple, and the processing is convenient. In addition, rely on the action of gravity of box 2 to make box 2 born by mounting bracket 1, when needs are dismantled box 2 from mounting bracket 1, only need to remove box 2 make guide pillar 3 slide out from guide slot 4 can. The quick assembly and disassembly of the box body 2 and the mounting frame 1 are realized by utilizing a simple connection mode, the operation is convenient, the realization is easy, and the humanized and industrialized design is met.
Further, referring to fig. 1 to 4 together, as an embodiment of the suspension type mounting structure provided by the present invention, the mounting frame 1 fixes the box body 2 in a vertical direction, and the guide groove 4 is opened at a side surface of the mounting frame 1, so that during mounting or dismounting, a related operation is performed at the side surface of the mounting frame 1. Wherein, the guide slot 4 includes the section of sliding 41 and spacing section 42, use the process of installation as an example, pack into guide pillar 3 from the section of sliding 41, treat after guide pillar 3 slides into spacing section 42 completely, guide pillar 3 gets into spacing section 42, guide pillar 3 slides into spacing section 42 after and is connected stably with spacing section 42 and has realized the fixed mounting of box 2 and mounting bracket 1 promptly, of course, except the section of sliding 41 and spacing section 42, can also set up some other linkage segments, in order to prevent guide pillar 3 from spacing section 42 or the section of sliding 41 roll-off, make guide pillar 3 connected ground more stable. Wherein, in the horizontal direction, the blind end of spacing section 42 will be less than the entry of the section of sliding 41 for the state after box 2 is fixed by mounting bracket 1 is more stable, prevents that guide pillar 3 from droing from spacing section 42, makes box 2 fall down from mounting bracket 1.
Further, referring to fig. 1 to 4, as a specific embodiment of the suspension type mounting structure provided by the present invention, the sliding section 41 and the limiting section 42 are both linear, the limiting section 42 is formed along the vertical direction, and the included angle between the sliding section 41 and the limiting section 42 is an acute angle or a right angle. When the included angle between the sliding section 41 and the limiting section 42 is an acute angle, the height of the movable box body 2 is lower, when the box body 2 is installed on the installation frame 1, the guide pillar 3 is aligned to the inlet of the sliding section 41, then the guide pillar 3 continuously rises along the sliding section 41, then the guide pillar 3 falls into the limiting section 42, and the box body 2 is fixed on the installation frame 1 by virtue of gravity; the detaching process is opposite to the loading process, and is not described in detail. When the included angle between the sliding section 41 and the limiting section 42 is a right angle, the height of the movable box body 2 needs to be higher than that of the case when the included angle is an acute angle, but the route of the guide post 3 when the guide post slides along the sliding section 41 is relatively stable. The specific installation mode can be selected according to actual conditions and requirements or can be accurate to a certain specific angle, and the like.
Further, please refer to fig. 1 to 4 together, as a specific embodiment of the suspension type mounting structure provided by the present invention, the sliding section 41 and the limiting section 42 are still linear, the limiting section 42 is opened along the vertical direction, and the included angle between the sliding section 41 and the limiting section 42 is an obtuse angle, under such a situation, the height of the box body 2 to be moved is higher than the acute angle and the right angle when the box body 2 is loaded into the mounting frame 1, the guide pillar 3 is aligned with the inlet of the sliding section 41, then the guide pillar 3 descends along the sliding section 41 continuously, then the guide pillar 3 falls into the limiting section 42, and the box body 2 is fixed on the mounting frame 1 by gravity; the detaching process is opposite to the loading process, and is not described in detail. In combination with the above mentioned acute and right angles, each of which is advantageous, the manner may be selected according to the actual situation, need or preference.
In addition, the sliding section 41 and the limiting section 42 mentioned above are all selected to be linear, and actually, the user can also design the sliding section 41 and the limiting section 42 to be arc-shaped, bent-shaped, and the like, and theoretically can design any shape. In addition, smooth transition treatment can be carried out at the joint of the sliding section 41 and the limiting section 42 so as to reduce the friction between the guide post 3 and the sliding section 41 and the limiting section 42 and reduce the abrasion between the guide post 3 and the sliding section 41 and the limiting section 42. In addition, the guide pillar 3, the sliding section 41 and the limiting section 42 can be designed to be in rolling connection, and the guide pillar 3 rolls along the sliding section 41 and the limiting section 42, so that the box body 2 and the mounting frame 1 are more labor-saving to disassemble and assemble.
Further, referring to fig. 1 to 4, as a specific embodiment of the suspension type mounting structure provided by the present invention, the sliding section 41 and the limiting section 42 are both linear, and the opening direction of the limiting section 42 forms an included angle with the vertical direction, which is an acute angle. After the guide pillar 3 is stably connected with the limiting section 42, the mounting frame 1 can be decomposed under the pressure action of the box body 2, that is, the stress direction of the mounting frame 1 is not consistent with the extending direction of the limiting section 42. The stress of the contact part of the guide pillar 3 and the limiting section 42 is not completely vertical, so that the stress is dispersed, the abrasion of the guide pillar 3 and the limiting section 42 caused by the contact is correspondingly reduced, and the service life of the guide pillar 3 and the limiting section 42 is prolonged.
In addition, the guide grooves 4 mentioned above are all opened on the side of the mounting frame 1, the number of the guide posts 3 can be an even number, usually two or four, and correspondingly, the number of the guide grooves 4 should be the same as the number of the guide posts 3. Of course, the number of guide posts 3 and guide slots 4 can also be selected according to the actual situation and requirements. The number of the guide posts 3 is generally even and distributed on two sides of the box body 2, and the guide grooves 4 are correspondingly arranged on two sides of the mounting rack 1 and are uniformly distributed.
Further, as a specific embodiment of the suspension type mounting structure provided by the present invention, the guide groove 4 is opened at the top of the mounting bracket 1, and at this time, the guide post 3 only needs to be put in from the entrance of the guide groove 4 until the guide post 3 reaches the bottom end of the guide groove 4. In this case, the guiding groove 4 may be a single segment, or may be divided into the sliding segment 41 and the limiting segment 42 or more segments as mentioned above, as long as the requirement is met.
Further, referring to fig. 1 to 3 together, as a specific embodiment of the suspension type mounting structure provided by the present invention, the mounting bracket 1 includes a vertical plate 11, a bottom plate 12 and two side plates 13, the bottom plate 12 is connected to the bottom of the vertical plate 11, the two side plates 13 are respectively fixedly connected to two sides of the vertical plate 11, and the vertical plate 11, the bottom plate 12 and the two side plates 13 form a structure with four closed sides and two open sides. The guide groove 4 is opened at the top or bottom of the two side plates 13 in conformity with the above-mentioned. After the guide pillar 3 and the guide groove 4 are matched, the mounting rack 1 forms a semi-surrounding state for the box body 2. The occupied space after the box body 2 and the mounting rack 1 are combined together is saved.
Further, referring to fig. 1 to 4 together, as a specific embodiment of the suspension type mounting structure provided by the present invention, one surface of the vertical plate 11 facing the box body 2 is a matching surface of the mounting frame 1 and the box body 2, the matching surface is provided with an elastic component 5 to play a role of damping the contact between the vertical plate 11 and the box body 2, the elastic component 5 is preferably a sponge, the sponge has good damping and anti-vibration effects, the sponge plays a role of damping, and the generated pretightening force can effectively reduce the abrasion between the guide pillar 3 and the guide groove 4 and the abnormal sound generated in the movement of the mounting frame 1 and the box body 2. In addition, the sponge also has the advantages of good heat preservation effect, convenient processing, low cost and the like. Of course, the elastic member 5 may be made of other elastic materials such as rubber, polyurethane, etc.
Further, as an embodiment of the suspension type mounting structure provided by the present invention, the bottom plate 12 is further provided with a fixing device for fixing the bottom plate 12 and the box body 2, which is considered that the box body 2 may be used in some occasions with relatively large vibration, and the box body 2 may have vibration or a tendency to generate vibration. Adopt fixing device to fix bottom plate 12 and box 2, then improved the stability of box 2 on mounting bracket 1. The fixing device can be replaced by a fastening element, such as a bolt or a screw, so that the fixing effect can be achieved, and the influence on quick assembly and disassembly is relatively small. Of course, a lock catch or the like may be used instead.
Referring to fig. 6, the present invention further provides an air conditioner, which includes the above-mentioned suspension type mounting structure, and further includes an evaporator 7, wherein in the air conditioner, most of the box body 2 is an electrical box or an electrical box component. The bottom of electrical apparatus box part still is provided with electrical connector, when the dismouting, need not with the help of using for example spanner, wind and criticize like appurtenance, pulls out electrical connector earlier, only needs up jack-up from the bottom with the hand electrical apparatus box part and treats guide pillar 3 and 4 horizontal direction exports at the same level and ordinary times with the guide slot, and toward pushing away, can accomplish the dismantlement of electrical apparatus box part. In addition, the force required for detaching the electric appliance box component can be accurately controlled by controlling the compressible amount of the sponge, the gap amount between the guide groove 4 and the guide post 3 and the like, and when the electric appliance box component is in a very severe working condition, a fastening bolt can be additionally arranged at the bottom of the electric appliance box component to ensure that the electric appliance box component is reliably installed under the severe working condition, so that the electric appliance box component is also in the mode mentioned above and is convenient to detach.
Further, referring to fig. 6, as a specific embodiment of the air conditioner provided by the present invention, the mounting bracket 1 and the evaporation chamber 6 are connected together by welding, the guide post 3 on the electrical box component is fixed in the guide groove 4, and the electrical box component is flexibly fixed on the mounting bracket 1 under the combined action of the stress of the guide post 3 and the elastic force of the elastic material on the assembly of the mounting bracket 1. The problem that a traditional structure needs a large space is avoided by the aid of the installation mode, the installation and the disassembly are convenient, and abnormal sound generated by moving of parts of the electric appliance box can be prevented.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. Suspension type mounting structure, including the mounting bracket and with the box of connection, its characterized in that can be dismantled to the mounting bracket: the box body is provided with a guide pillar, the mounting rack is provided with a guide groove for the guide pillar to slide, or the mounting rack is provided with the guide pillar, and the box body is provided with a guide groove for the guide pillar to slide.
2. The suspended mounting structure of claim 1, wherein: the mounting bracket is fixed in the vertical direction the box, the guide slot is seted up the side of mounting bracket, the guide slot is including the section of sliding and spacing section, the blind end of spacing section is less than in the horizontal direction the entry of the section of sliding.
3. The suspended mounting structure of claim 2, wherein: the sliding section and the limiting section are all arranged along a straight line, the limiting section is arranged along the vertical direction, and the included angle between the sliding section and the limiting section is within 90 degrees.
4. The suspended mounting structure of claim 2, wherein: the sliding section and the limiting section are all arranged along a straight line, the limiting section is arranged along the vertical direction, and the included angle between the sliding section and the limiting section is an obtuse angle.
5. The suspended mounting structure of claim 2, wherein: the sliding section and the limiting section are all arranged along a straight line, and an included angle is formed between the arranging direction of the limiting section and the vertical direction and is an acute angle.
6. The suspended mounting structure of claim 1, wherein: the guide groove is formed in the top of the mounting frame.
7. The suspended mounting structure of claim 1, wherein: the mounting bracket comprises a vertical plate, a bottom plate connected with the vertical plate, and two side plates arranged on the fixing plate, wherein the top or the side of each side plate is provided with the guide groove.
8. The suspended mounting structure of claim 7, wherein: the riser orientation the one side of box is the fitting surface, be provided with elastomeric element on the fitting surface.
9. The suspended mounting structure of claim 7, wherein: the bottom plate is also provided with a fixing device for fixing the box body.
10. An air conditioner, characterized in that: comprising a suspension mounting structure according to any of claims 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911024371.2A CN110749073A (en) | 2019-10-25 | 2019-10-25 | Suspension type mounting structure and air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911024371.2A CN110749073A (en) | 2019-10-25 | 2019-10-25 | Suspension type mounting structure and air conditioner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110749073A true CN110749073A (en) | 2020-02-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911024371.2A Pending CN110749073A (en) | 2019-10-25 | 2019-10-25 | Suspension type mounting structure and air conditioner |
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| Country | Link |
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| CN (1) | CN110749073A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2904574Y (en) * | 2006-03-17 | 2007-05-23 | 广州松下空调器有限公司 | Electrical device with remote controller |
| JP2014142082A (en) * | 2013-01-22 | 2014-08-07 | Mitsubishi Heavy Ind Ltd | Suspension metal fitting for ceiling suspended air conditioning unit |
| CN205401342U (en) * | 2016-02-29 | 2016-07-27 | 舒土石 | Bayonet lock draw bail and bed |
| CN205479824U (en) * | 2016-01-11 | 2016-08-17 | 山东恒丰制冷科技有限公司 | Split -type air conditioner connects fastener |
| CN206283455U (en) * | 2016-12-01 | 2017-06-27 | 广东保威新能源有限公司 | Adjustable angle main joist connector and single column support |
| CN207763984U (en) * | 2017-11-29 | 2018-08-24 | 中国科学院青藏高原研究所 | A kind of online collection device of the steam of hydrogen and oxygen stable isotope |
| CN209382766U (en) * | 2018-11-29 | 2019-09-13 | 内蒙古翁牛特牧原农牧有限公司 | A kind of detachable deceleration flow tube |
-
2019
- 2019-10-25 CN CN201911024371.2A patent/CN110749073A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2904574Y (en) * | 2006-03-17 | 2007-05-23 | 广州松下空调器有限公司 | Electrical device with remote controller |
| JP2014142082A (en) * | 2013-01-22 | 2014-08-07 | Mitsubishi Heavy Ind Ltd | Suspension metal fitting for ceiling suspended air conditioning unit |
| CN205479824U (en) * | 2016-01-11 | 2016-08-17 | 山东恒丰制冷科技有限公司 | Split -type air conditioner connects fastener |
| CN205401342U (en) * | 2016-02-29 | 2016-07-27 | 舒土石 | Bayonet lock draw bail and bed |
| CN206283455U (en) * | 2016-12-01 | 2017-06-27 | 广东保威新能源有限公司 | Adjustable angle main joist connector and single column support |
| CN207763984U (en) * | 2017-11-29 | 2018-08-24 | 中国科学院青藏高原研究所 | A kind of online collection device of the steam of hydrogen and oxygen stable isotope |
| CN209382766U (en) * | 2018-11-29 | 2019-09-13 | 内蒙古翁牛特牧原农牧有限公司 | A kind of detachable deceleration flow tube |
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Application publication date: 20200204 |
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