CN109357245B - Height-adjustable lamp bracket and test lamp - Google Patents
Height-adjustable lamp bracket and test lamp Download PDFInfo
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- CN109357245B CN109357245B CN201811199260.0A CN201811199260A CN109357245B CN 109357245 B CN109357245 B CN 109357245B CN 201811199260 A CN201811199260 A CN 201811199260A CN 109357245 B CN109357245 B CN 109357245B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V21/00—Supporting, suspending, or attaching arrangements for lighting devices; Hand grips
- F21V21/36—Hoisting or lowering devices, e.g. for maintenance
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
- Testing Resistance To Weather, Investigating Materials By Mechanical Methods (AREA)
Abstract
A height-adjustable lamp bracket and a test lamp are provided, wherein the height-adjustable lamp bracket comprises a supporting frame, a constant force hinge, a lamp body bracket, a driving assembly and a plurality of connecting sheets; the constant force hinge is connected with the supporting frame and comprises a plurality of hinge connecting pieces and a plurality of hinge connecting shafts, and the uppermost hinge connecting piece is connected with the supporting frame; each connecting sheet is correspondingly connected with each hinge connecting shaft one by one, and the connecting sheet is provided with a through hole; the lamp body bracket is connected with the hinge connecting sheet at the lowest part; the driving assembly comprises a motor, a winding drum and a traction wire, one end of the traction wire is wound on the winding drum, the other end of the traction wire sequentially penetrates through the penetrating holes formed in the winding connection piece, and the traction wire is used for driving the constant force hinge to be integrally opened or contracted to adjust the height of the lamp body support under the rotation of the winding drum. In the height-adjustable lamp holder, the traction wire is used for driving the constant force hinge to be wholly opened or contracted under the rotation of the winding drum so as to adjust the height of the lamp body support.
Description
Technical Field
The invention relates to the technical field of lamp holders, in particular to a height-adjustable lamp holder and a test lamp.
Background
In the prior art, when a rail train collision test is carried out, the train in a rail needs to be illuminated. Wherein the light generally adopts the lighting fixture fixed, makes the direction of illumination of light shine towards the train during installation.
However, the position of the existing lamp holder is relatively fixed, the lighting height cannot be adjusted, and the test requirements of trains with different heights cannot be met.
Disclosure of Invention
Based on this, it is necessary to provide height-adjustable lamp holders and test lamps that can adjust the lighting height and can meet the test requirements of trains of different heights.
A height adjustable lighting fixture, comprising: the lamp body bracket comprises a supporting frame, a constant force hinge, a lamp body bracket, a driving assembly and a plurality of connecting sheets;
the constant force hinge is connected with the supporting frame and comprises a plurality of hinge connecting pieces and a plurality of hinge connecting shafts, mounting holes are formed in the middle of the hinge connecting pieces, the hinge connecting pieces are hinged in a mutually crossed mode through the hinge connecting shafts, and the hinge connecting shafts are mounted in the mounting holes of the two hinge connecting pieces which are hinged in a mutually crossed mode; the end parts of two adjacent hinge connecting sheets are hinged; the hinge connecting piece positioned on one end face of the constant force hinge is connected with the supporting frame;
each connecting sheet is connected with each hinge connecting shaft in a one-to-one correspondence manner, and each connecting sheet is provided with a through hole;
the lamp body bracket is connected with the hinge connecting piece positioned at the other end of the constant force hinge;
the driving assembly comprises a motor, a bobbin and a traction wire, the motor is fixed on the supporting frame, the bobbin is connected with a rotating shaft of the motor, the rotating shaft of the motor drives the bobbin to rotate, one end of the traction wire is wound on the bobbin, the other end of the traction wire sequentially penetrates through and is wound on the connecting piece, the penetrating hole is formed in the connecting piece, and the traction wire is used for driving the constant force hinge to be integrally opened or contracted to adjust the height of the lamp body support under the rotation of the bobbin.
In one embodiment, the motor is a servo motor.
In one embodiment, the rotating shaft of the motor is connected with the winding reel through a speed reducer.
In one embodiment, the pull wire is a steel wire.
In one embodiment, the maximum open length of the constant force hinge is 12 meters.
In one embodiment, the through-going bore has a circular cross-section.
In one embodiment, the through-going hole has a rectangular cross-section.
In one embodiment, the mounting hole has a circular cross-section.
A test lamp comprising a height adjustable fixture as described in any one of the embodiments above.
In one embodiment, the test lamp further comprises a lamp holder disposed on the lamp body support and a high-pressure mercury lamp mounted on the lamp holder.
The height-adjustable lamp bracket and the lamp body bracket are used for installing a lighting lamp, such as a high-pressure mercury lamp. Through setting up constant force hinge and drive assembly, the pull wire is used for driving under the rotation of bobbin the height that the lamp body support was adjusted to the whole opening or the shrink of constant force hinge to can adjust the illumination height, can satisfy the test needs of the train of co-altitude not. In addition, through controlling the motor, can reach the effect of the height of control lamp body support, it is comparatively convenient to control.
Drawings
FIG. 1 is a schematic structural view of a height adjustable lamp holder according to an embodiment of the present invention;
FIG. 2 is an enlarged view of the height adjustable lamp holder shown in FIG. 1 at A;
fig. 3 is an enlarged view of fig. 2 at B.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, and in order to provide a better understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete. This invention can be embodied in many different forms than those herein described and many modifications may be made by those skilled in the art without departing from the spirit of the invention. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise. In the description of the present invention, "a plurality" means at least one, e.g., one, two, etc., unless specifically limited otherwise. It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
For example, a height adjustable lighting fixture, comprising: the lamp body bracket comprises a supporting frame, a constant force hinge, a lamp body bracket, a driving assembly and a plurality of connecting sheets; the constant force hinge is connected with the supporting frame and comprises a plurality of hinge connecting pieces and a plurality of hinge connecting shafts, mounting holes are formed in the middle of the hinge connecting pieces, the hinge connecting pieces are hinged in a mutually crossed mode through the hinge connecting shafts, and the hinge connecting shafts are mounted in the mounting holes of the two hinge connecting pieces which are hinged in a mutually crossed mode; the end parts of two adjacent hinge connecting sheets are hinged; the hinge connecting piece positioned at one end of the constant force hinge is connected with the supporting frame; each connecting sheet is connected with each hinge connecting shaft in a one-to-one correspondence manner, and each connecting sheet is provided with a through hole; the lamp body bracket is connected with the hinge connecting sheet at one end of the constant force hinge; the driving assembly comprises a motor, a bobbin and a traction wire, the motor is fixed on the supporting frame, the bobbin is connected with a rotating shaft of the motor, the rotating shaft of the motor drives the bobbin to rotate, one end of the traction wire is wound on the bobbin, the other end of the traction wire sequentially penetrates through and is wound on the connecting piece, the penetrating hole is formed in the connecting piece, and the traction wire is used for driving the constant force hinge to be integrally opened or contracted to adjust the height of the lamp body support under the rotation of the bobbin. As another example, the pull wire is used for driving the constant force hinge to wholly open or contract under the rotation of the winding reel to adjust the height of the lamp body support, and specifically comprises: the traction wire is used for driving the constant force hinge to be wholly opened or contracted under the rotation of the winding reel and the gravity action of the lamp body support to adjust the height of the lamp body support. It should be noted that, when the pull wire is not used, the constant force hinge is in an open state as a whole under the action of the self-gravity of the lamp body support. And when the pull wire is tightened, the gravity of the lamp body bracket can be eliminated or larger than that of the pull wire, so that the constant force hinge is integrally in a contraction state. Of course, it is not limited thereto.
To further illustrate the height adjustable lamp stand, referring to fig. 1, another example of the height adjustable lamp stand includes a support frame 210, a constant force hinge 220, a lamp body support 230, a driving assembly 240 and a plurality of connecting pieces 250. The supporting frame is used for integrally mounting the height-adjustable lamp holder on an external wall or a guide rail, and the supporting frame plays a role in integral supporting and mounting. The constant force hinge is connected with the supporting frame and used for adjusting the height. The lamp body support is connected with the constant force hinge, and the lamp body support is used for installing a lamp body, such as a high-pressure mercury lamp and the like, and plays a role in illumination. The driving assembly is respectively connected with the supporting frame and the constant force hinge and used for driving the constant force hinge to adjust the height.
Referring to fig. 1 to 3, the constant force hinge 220 is connected to the support frame 210, the constant force hinge 220 includes a plurality of hinge connection pieces 221 and a plurality of hinge connection shafts 222, a mounting hole 221a is formed in the middle of each hinge connection piece 221, the hinge connection pieces 221 are hinged to each other in a crossing manner through the hinge connection shafts 222, and the hinge connection shafts 222 are mounted in the mounting holes 221 of the two crossed hinge connection pieces 221; alternatively, the two intersecting hinge connecting pieces 221 are connected by the hinge connecting shaft 222. The ends of two adjacent hinge connecting pieces 221 are hinged, that is, the end of one hinge connecting piece is hinged to the end of the adjacent hinge connecting piece, or the adjacent end is hinged. The hinge connection piece 221 at one end of the constant force hinge is connected to the support frame 210, and specifically, referring to fig. 1, the uppermost hinge connection piece 221 is connected to the support frame 210. The lamp body support 230 is connected to the hinge connection piece 221 at one end of the constant force hinge; specifically, referring to fig. 1, the lamp body bracket 230 is connected to the lowermost hinge connection piece 221; the lamp body support is used for installing a lamp body, such as a high-pressure mercury lamp and the like, and plays a role in illumination.
Referring to fig. 1 and 3, each connecting piece 250 is connected to each hinge connecting shaft 222 in a one-to-one correspondence manner, and the connecting piece 250 is provided with a through hole 251.
Referring to fig. 1, the driving assembly 240 includes a motor 241, a bobbin 222, and a pulling wire (not shown), the motor 241 is fixed on the supporting frame 210, the bobbin 222 is connected to a rotating shaft of the motor 241, the rotating shaft of the motor 241 drives the bobbin 222 to rotate, one end of the pulling wire is wound on the bobbin 222, the other end of the pulling wire sequentially penetrates and is wound on the penetrating hole 251 of the connecting piece 250, the pulling wire is used for driving the constant force hinge 220 to be integrally opened or contracted under the rotation of the bobbin 222 to adjust the height of the lamp body support, or the pulling wire is used for driving the lamp body support 230 to move towards or away from the supporting frame 210 through the constant force hinge 220 under the rotation of the bobbin 222. So, through setting up constant force hinge and drive assembly, the pull wire is used for driving under the rotation of bobbin the height that the lamp body support was adjusted to the whole expansion or the shrink of constant force hinge to can adjust the illumination height, can satisfy the test needs of the train of co-altitude not. In addition, through controlling the motor, can reach the effect of the height of control lamp body support, it is comparatively convenient to control. As another example, the motor is a servo motor. For another example, the rotating shaft of the motor is connected to the bobbin through a speed reducer. Thus, the controllability is good. For another example, the pulling wire is a steel wire, so that the structure of the pulling wire is firmer. As another example, the maximum open length of the constant force hinge is 12 meters. As another example, the through-holes have a circular cross-section or a rectangular cross-section. As another example, the mounting hole has a circular cross-section. Thus, the hinge connecting shaft is convenient to install.
In one embodiment, the traction wire is further provided with a tensioning device, and as another example, the height-adjustable lamp holder further comprises a tensioning device, the tensioning device is arranged on the supporting frame, and the traction wire sequentially penetrates through the penetrating holes in the connecting piece through the rear end of the tensioning device and is wound around the penetrating holes. Thus, the tension device can keep a certain buffer force of the traction wire. If the height-adjustable lamp holder further comprises a guide pulley, the guide pulley is arranged on the supporting frame, one end of the traction wire is connected with and wound on the winding drum, and the other end of the traction wire is sequentially connected with the tensioning device, the guide pulley and the constant-force hinge, so that a better guiding effect can be achieved by arranging the guide pulley.
The height-adjustable lamp bracket and the lamp body bracket are used for installing a lighting lamp, such as a high-pressure mercury lamp. Through setting up constant force hinge and drive assembly, the pull wire is used for driving under the rotation of bobbin the height that the lamp body support was adjusted to the whole opening or the shrink of constant force hinge to can adjust the illumination height, can satisfy the test needs of the train of co-altitude not. In addition, through controlling the motor, can reach the effect of the height of control lamp body support, it is comparatively convenient to control.
A test lamp comprising a height adjustable fixture as described in any one of the embodiments above. In one embodiment, the test lamp further comprises a lamp holder disposed on the lamp body support and a high-pressure mercury lamp mounted on the lamp holder. In one embodiment, a plurality of lamp holders and a plurality of high-pressure mercury lamps are arranged, the lamp holders are arranged on the lamp body support, and the high-pressure mercury lamps are arranged on the lamp holders in a one-to-one correspondence mode. Therefore, a better lighting effect can be achieved. In another example, the light output side of the high-pressure mercury lamp faces a train. For another example, a test lamp includes a lamp socket disposed on the lamp body bracket, a high-pressure mercury lamp mounted on the lamp socket, and the height adjustable lamp as described in any of the above embodiments. In another example, the test lamp further includes a controller, the controller is disposed on the lamp body bracket, and the controller is electrically connected to the high-pressure mercury lamp. For another example, the controller is electrically connected to the high-pressure mercury lamp and the motor, respectively. As another example, the controller is electrically connected to the high-pressure mercury lamp through a lamp socket.
In order to further improve the adjustability of the test lamp, in an embodiment, two opposite sides of the bottom of the lamp body support are respectively connected with the two guide rails, that is, one side of the bottom of the lamp body support is connected with one of the guide rails, and the other side of the bottom of the lamp body support is connected with the other guide rail. For another example, two sides of the lamp body support are respectively slidably connected to the two guide rails, that is, one side of the bottom of the lamp body support is slidably connected to one of the guide rails, and the other side of the bottom of the lamp body support is slidably connected to the other guide rail. Therefore, the lamp body support can slide along the two guide rails, the adjustability of the test lamp is further improved, and the position of the lamp body support can be adjusted according to needs, so that the position of the high-pressure mercury lamp is adjusted.
It can be understood that the high-pressure mercury lamp is high in power and high in temperature when emitting light. In order to improve the heat dissipation effect of the high-pressure mercury lamp, in an embodiment, the test lamp further comprises a heat dissipation device, the heat dissipation device comprises a heat dissipation ring piece, a plurality of heat dissipation fins and a refrigerant pipe, the heat dissipation ring piece is connected with the lamp holder, the heat dissipation ring piece is located outside the high-pressure mercury lamp, or the heat dissipation ring piece is sleeved outside the high-pressure mercury lamp, the heat dissipation fins are arranged on the outer side wall of the heat dissipation ring piece, the refrigerant pipe is sequentially connected with the heat dissipation fins, the heat dissipation fins are far away from one side of the heat dissipation ring piece, if the heat dissipation fins are far away from one side of the heat dissipation ring piece, the refrigerant pipe is connected with the inlet and the inlet, and a refrigerant flows through the refrigerant pipe. As another example, the refrigerant tube is a copper tube. The refrigerant in the refrigerant pipe is used for taking away heat on the radiating fins, so that the radiating effect of the high-pressure mercury lamp can be better improved. As another example, the refrigerants include, but are not limited to, cold water, R134a, and R-22. Preferably, the refrigerant is R134a or R-22, so that the refrigerating effect is good, substances such as scale and the like are not easy to form, and the long-term use is convenient. If the heat dissipation ring piece is a circular ring, the heat dissipation ring piece is provided with a plurality of heat dissipation fins, and the heat dissipation fins are arranged on the outer side wall of the heat dissipation ring piece at intervals. In order to further improve the heat dissipation effect of the high-pressure mercury lamp, in an embodiment, a heat dissipation embedding hole is formed in one side of the heat dissipation fins, which is away from the heat dissipation ring piece, the refrigerant pipe is sequentially embedded in the heat dissipation embedding hole of the heat dissipation fins, and if the heat dissipation embedding hole is formed in the middle of one side of the heat dissipation fins, which is away from the heat dissipation ring piece, the heat dissipation effect of the high-pressure mercury lamp can be further improved. For another example, a heat dissipation circular ring portion extends from the position of the side wall of the heat dissipation embedding hole on the heat dissipation fin, and the inner side wall of the heat dissipation circular ring portion is connected with the outer side wall of the refrigerant pipe. Therefore, the contact area between the radiating fins and the refrigerant pipe can be increased, and the radiating effect is further improved. For another example, the heat dissipation circular rings extend from two opposite sides of the heat dissipation fins, and for another example, the heat dissipation circular rings on the same side of the adjacent heat dissipation fins are connected. For another example, the refrigerant line has an inlet for flowing refrigerant and an outlet for flowing refrigerant.
In order to further improve the heat dissipation effect on the high-pressure mercury lamp, in an embodiment, the heat dissipation device further includes a refrigeration device and a refrigeration pump, the refrigeration device is disposed on the lamp body support, the refrigeration pump is disposed on the lamp body support, a refrigerant outlet of the refrigeration device is communicated with an inlet of the refrigerant pipe through the refrigeration pump, and a refrigerant inlet of the refrigeration device is communicated with an outlet of the refrigerant pipe. Therefore, the refrigeration equipment is used for converting the refrigerant into a low-temperature state, and the refrigeration pump is used for controlling the flow rate of the refrigerant, so that the flow rate of the refrigerant can be adjusted according to the requirement to meet the heat dissipation requirement under the non-use environment. For another example, the refrigeration equipment and the refrigeration pump are both electrically connected with the controller. The refrigeration equipment and the refrigeration pump are controlled by the controller. In order to further improve the heat dissipation effect of the high-pressure mercury lamp, in an embodiment, the heat dissipation apparatus further includes a temperature sensor, the temperature sensor is disposed on the lamp holder, and the temperature sensor is disposed adjacent to the high-pressure mercury lamp. The temperature sensor is electrically connected with the controller. And the temperature sensor is positioned between the high-pressure mercury lamp and the radiating ring pieces, the temperature sensor is used for detecting the temperature of the area between the high-pressure mercury lamp and the radiating ring pieces and sending the temperature of the area between the high-pressure mercury lamp and the radiating ring pieces to the controller, and the controller is used for controlling the refrigeration equipment and the refrigeration pump according to the temperature of the area between the high-pressure mercury lamp and the radiating ring pieces. In this way, the circulation speed of the refrigerant is adjusted according to the temperature of the area between the high-pressure mercury lamp and the radiating ring plate, so that the radiating effect is better.
When the high-pressure mercury lamp is operated, current flows through the high-pressure mercury vapor to ionize and excite the high-pressure mercury vapor, thereby causing collisions between electrons, atoms, and ions in the discharge tube to emit light. However, the mercury vapor is a toxic gas, and the leakage is not safe to surrounding personnel, especially in the process of train experiment, if the bulb of the high-pressure mercury lamp is broken, the mercury vapor in the bulb will overflow out of the bulb, which will cause great danger and toxicity to the testers in the experiment. In order to improve the safety of the test lamp, in an embodiment, an explosion-proof transparent glass cover covers the outer side of the heat dissipation device, the high-pressure mercury lamp is arranged in the explosion-proof transparent glass cover, the explosion-proof transparent glass cover is connected with the lamp holder, the explosion-proof transparent glass cover and the lamp holder form a closed space together, and the heat dissipation device and the high-pressure mercury lamp are both located in the closed space. The anti-explosion light-transmitting glass cover is provided with a first mounting hole and a second mounting hole in the area close to the lamp holder, the inlet end of the refrigerant pipe is embedded in the first mounting hole, the outlet end of the refrigerant pipe is embedded in the second mounting hole, high-temperature-resistant sealant is sealed at the connecting position of the inlet end of the refrigerant pipe and the first mounting hole, and high-temperature-resistant sealant is sealed at the connecting position of the outlet end of the refrigerant pipe and the second mounting hole. In addition, the explosion-proof transparent glass cover can reduce the danger caused by the explosion of the high-pressure mercury lamp to a certain extent.
The height-adjustable lamp bracket is adopted by the test lamp, and the lamp body bracket is used for mounting an illuminating lamp, such as a high-pressure mercury lamp. Through setting up constant force hinge and drive assembly, the pull wire is used for driving under the rotation of bobbin the height that the lamp body support was adjusted to the whole opening or the shrink of constant force hinge to can adjust the illumination height, can satisfy the test needs of the train of co-altitude not. In addition, through controlling the motor, can reach the effect of the height of control lamp body support, it is comparatively convenient to control.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features. It should be noted that "in one embodiment," "for example," "as another example," and the like, are intended to illustrate the application and are not intended to limit the application. The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (10)
1. A height adjustable lighting fixture, comprising:
a support frame for supporting the frame,
the constant-force hinge is connected with the supporting frame and comprises a plurality of hinge connecting pieces and a plurality of hinge connecting shafts, mounting holes are formed in the middle of the hinge connecting pieces, the hinge connecting pieces are hinged in a mutually crossed mode through the hinge connecting shafts, and the hinge connecting shafts are mounted in the mounting holes of the two hinge connecting pieces which are hinged in a mutually crossed mode; the end parts of two adjacent hinge connecting sheets are hinged; the hinge connecting piece positioned at one end of the constant force hinge is connected with the supporting frame;
the lamp body bracket is connected with the hinge connecting sheet positioned at the other end of the constant force hinge;
its characterized in that, this lighting fixture still includes:
the hinge connecting shafts are correspondingly connected with the connecting pieces in a one-to-one mode, and the connecting pieces are provided with penetrating holes;
drive assembly, drive assembly includes motor, bobbin and pull wire, the motor is fixed in on the braced frame, the bobbin is connected the rotation axis of motor, the rotation axis of motor drives the bobbin rotates, the one end winding of pull wire is in on the bobbin, the other end of pull wire is worn to establish and is twined in proper order the connection piece wear to establish the hole, the pull wire is used for driving under the rotation of bobbin the height that the lamp body support was adjusted to the whole opening of constant force hinge or shrink.
2. The height adjustable lamp fixture of claim 1, wherein the motor is a servo motor.
3. The height adjustable lamp stand according to claim 1, wherein a rotation shaft of the motor is connected to the bobbin through a speed reducer.
4. The height adjustable lamp holder according to claim 1, wherein the pull wire is a steel wire.
5. The height adjustable light fixture of claim 1 wherein the maximum open length of the constant force hinge is 12 meters.
6. The height adjustable lamp holder according to claim 1, wherein the through hole has a circular cross section.
7. The height adjustable lamp holder according to claim 1, wherein the through hole has a rectangular cross section.
8. The height adjustable lamp holder according to claim 1, wherein the mounting hole has a circular cross section.
9. A test lamp comprising a height adjustable fixture according to any one of claims 1 to 8.
10. The test lamp of claim 9, further comprising a lamp holder provided on the lamp body holder and a high-pressure mercury lamp mounted on the lamp holder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811199260.0A CN109357245B (en) | 2018-10-15 | 2018-10-15 | Height-adjustable lamp bracket and test lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811199260.0A CN109357245B (en) | 2018-10-15 | 2018-10-15 | Height-adjustable lamp bracket and test lamp |
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| Publication Number | Publication Date |
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| CN109357245A CN109357245A (en) | 2019-02-19 |
| CN109357245B true CN109357245B (en) | 2020-02-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201811199260.0A Active CN109357245B (en) | 2018-10-15 | 2018-10-15 | Height-adjustable lamp bracket and test lamp |
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| CN207856124U (en) * | 2017-12-01 | 2018-09-14 | 周军 | A kind of tunnel fire-fighting equipment pusher gear |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103148422A (en) * | 2013-02-06 | 2013-06-12 | 上海市闵行第二中学 | Retractable droplight |
| CN106319901A (en) * | 2016-11-21 | 2017-01-11 | 广西大学 | Hinge-type liftable clothes hanger |
| CN106702695A (en) * | 2016-11-21 | 2017-05-24 | 广西大学 | Lifting clothes hanger with stretchable rod |
| CN207745196U (en) * | 2017-04-13 | 2018-08-21 | 王启莲 | A kind of obstetrics and gynecology department operation auxiliary device |
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| CN207243356U (en) * | 2017-08-10 | 2018-04-17 | 天津市鼎圣饲料有限公司 | A kind of lifting gear for Feed Manufacturing transport |
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| Publication number | Publication date |
|---|---|
| CN109357245A (en) | 2019-02-19 |
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Effective date of registration: 20220617 Address after: No. 435, Qingyin Road, Luyuan District, Changchun City, Jilin Province Patentee after: CRRC CHANGCHUN RAILWAY VEHICLES Co.,Ltd. Patentee after: Changchun CRRC Rail Vehicle Technology Development Co., Ltd Address before: 130062 Jilin province Changchun city green yam Road No. 435 Patentee before: CRRC CHANGCHUN RAILWAY VEHICLES Co.,Ltd. |