CN111719423A - Protection device for municipal bridge - Google Patents
Protection device for municipal bridge Download PDFInfo
- Publication number
- CN111719423A CN111719423A CN202010508209.4A CN202010508209A CN111719423A CN 111719423 A CN111719423 A CN 111719423A CN 202010508209 A CN202010508209 A CN 202010508209A CN 111719423 A CN111719423 A CN 111719423A
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- Prior art keywords
- sleeve
- buffer
- rod
- support
- pad
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/10—Railings; Protectors against smoke or gases, e.g. of locomotives; Maintenance travellers; Fastening of pipes or cables to bridges
- E01D19/103—Parapets, railings ; Guard barriers or road-bridges
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
- F16F15/04—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means
- F16F15/08—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means with rubber springs ; with springs made of rubber and metal
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Aviation & Aerospace Engineering (AREA)
- Mechanical Engineering (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Vibration Dampers (AREA)
Abstract
The invention discloses a protective device for a municipal bridge, which comprises a mounting pier arranged on a bridge floor, wherein a pair of protective rods are arranged on the mounting pier, a plurality of buffer devices are arranged between the pair of protective rods, each buffer device comprises a pressure rod, a sleeve, a fixed shaft, a first spring and a buffer piece, and the pressure rod is connected with the protective rod positioned on the outer side; the pressing rod is in sliding fit with the sleeve, one end of an annular blocking platform positioned on the periphery of the sleeve is pressed against the inner side surface of the connecting column, and the other end of the annular blocking platform is pressed against a guide rod positioned on the inner side of the protective rod; the fixed shaft is arranged on the protective rod positioned on the inner side, and the sleeve is in sliding fit with the fixed shaft; the first spring is arranged between one end of the sleeve and the protective rod positioned on the inner side, and the first spring is sleeved on the fixed shaft; the buffer piece is arranged between the pressing rod and the fixed shaft. By adopting the structure, the buffering device has good buffering effect, not only protects the personal safety of drivers and passengers, but also prolongs the service life of the buffering device.
Description
Technical Field
The invention relates to the technical field of bridges, in particular to a protection device for a municipal bridge.
Background
The bridge protection device is a device arranged on a bridge, and aims to prevent an out-of-control vehicle from crossing the bridge and have the functions of preventing the vehicle from breaking through, passing down, turning over the bridge and beautifying the bridge building.
Chinese patent CN201721567794.5 discloses a rail guard for municipal bridge, and relates to the technical field of bridge. This rail guard for municipal administration bridge, including the bridge floor, the top fixed mounting of bridge floor has the installation mound. This rail guard for municipal bridge, through the fender rod, the buffer layer, buffer, the sleeve, atress pole and buffer spring's cooperation, when the rail guard receives the striking, the buffer layer can cushion some impact force, then conduct the impact force to the fender rod on right side, can make buffer spring take place elastic deformation after the atress pole atress, elastic deformation that buffer spring produced can continue to cut down the impact force, through the fixed block, the cooperation of vaulting pole and dead lever, the vaulting pole can conduct the impact force that the fender rod received to the bridge floor on.
The buffering device in the above patent document only has a spring for buffering, and when the impact force of the vehicle on the guard rail is too large, the spring is deformed irreversibly, so that the spring loses the buffering function, the service life of the guard rail is shortened, and the personal safety of drivers and passengers cannot be ensured.
Disclosure of Invention
In view of the above, the invention provides the protection device for the municipal bridge, which has the advantages of good buffering effect and long service life.
In order to achieve the purpose, the invention provides the following technical scheme:
the utility model provides a protector for municipal administration bridge, is including setting up the installation mound on the bridge floor, be equipped with a pair of fender rod on the installation mound, link to each other through the diaphragm between a pair of fender rod, the diaphragm with be equipped with a connecting post between the installation mound, the outer end of the fender rod that is located the outside is equipped with the blotter, is equipped with a plurality of buffer between a pair of fender rod, wherein, buffer includes:
the pressure lever is connected with the protective rod positioned on the outer side;
the pressure rod is in sliding fit with the sleeve, one end of an annular blocking platform positioned on the periphery of the sleeve is pressed against the inner side surface of the connecting column, and the other end of the annular blocking platform is pressed against a guide rod positioned on the inner side of the protective rod;
the fixed shaft is arranged on the protective rod positioned on the inner side, and the sleeve is in sliding fit with the fixed shaft;
the first spring is arranged between one end of the sleeve and the protective rod positioned on the inner side, and the first spring is sleeved on the fixed shaft;
the buffer piece is arranged between the pressing rod and the fixed shaft and is located in the sleeve.
Further, the bolster includes consecutive first foundation, second foundation and cushion column, the one end of first foundation support press on the fixed axle, the one end of cushion column is equipped with the buffering protrudingly, the protruding top surface of buffering supports and leans on the fender rod.
Furthermore, a supporting piece is embedded in the buffer piece and provided with a supporting cylinder, one end of the supporting cylinder is provided with a hemispherical shell, the hemispherical shell is positioned in the buffering protrusion, the periphery of the supporting cylinder is provided with a plurality of supporting columns which are vertical to the supporting cylinder, and the supporting columns extend to the periphery of the buffering column.
Furthermore, buffer still includes a pair of second spring, the second spring setting is in the annular keeps off between the inner of platform and the sleeve pipe that is located inboard guard bar, just the second spring cover is established on the guide bar that corresponds, guide bar and the sleeve pipe sliding fit that corresponds, just be equipped with the third spring between guide bar and the sleeve pipe that corresponds.
Furthermore, the sleeve further comprises a first outer sleeve, an inner sleeve and a second outer sleeve, the inner sleeve is arranged on the inner wall of the outer portion of the first outer sleeve, the second outer sleeve is arranged on the outer wall of the outer portion of the inner sleeve, the annular blocking table is arranged on the periphery of the first outer sleeve, the pressing rod is in sliding fit with the inner sleeve, and one end of the second bottom column is abutted against the inner end of the inner sleeve.
Furthermore, the outer end of the second outer sleeve is provided with a pair of U-shaped rubber pieces, the pair of U-shaped rubber pieces are respectively positioned on the upper side and the lower side of the pressing rod, one side arm of each U-shaped rubber piece is connected with the second outer sleeve, the other side arm of each U-shaped rubber piece is provided with a rubber block, the rubber blocks are pressed on the outer end of the connecting column, and the bottom of each U-shaped rubber piece is pressed on the longitudinal pressing rod of the pressing rod.
Furthermore, the buffer pad comprises a bottom pad, a middle pad and an outer pad which are sequentially connected, and the side surface of the buffer pad is a wavy surface after the bottom pad, the middle pad and the outer pad are connected.
Furthermore, the embedded supporter that is equipped with of blotter, the supporter is including being located base ball, the setting of blotter center department are in main tributary vaulting pole and the setting on the base ball are in a plurality of collateral branch vaulting pole on the base ball, the main tributary vaulting pole to the outer end of blotter extends, the collateral branch vaulting pole to the side of blotter extends, be equipped with first support ball on the main tributary vaulting pole, be equipped with the second support ball on the collateral branch vaulting pole.
The technical scheme can show that the invention has the advantages that:
1. because the first spring, the second spring, the third spring, the buffer part and the U-shaped rubber part are arranged in the buffer device, the buffer performance of the buffer device is improved, the personal safety of drivers and passengers is ensured, and the service life of the buffer device is prolonged;
2. because the supporting piece is embedded in the buffer piece, and the supporting body is embedded in the buffer pad, the rigidity of the buffer piece and the buffer pad is increased, the buffer piece and the buffer pad can be prevented from being excessively deformed, the service lives of the buffer piece and the buffer pad are prolonged, and the service life of the buffer device is further prolonged.
In addition to the objects, features and advantages described above, other objects, features and advantages of the present invention are also provided. The present invention will be described in further detail below with reference to the drawings.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts. In the drawings:
fig. 1 is a schematic structural view of the present invention.
Fig. 2 is an enlarged view at I in fig. 1.
Fig. 3 is a sectional view of a cushion member in the cushion device of the present invention.
FIG. 4 is a cross-sectional view of the cushion of the present invention.
Labeled as: the mounting pier 10, the guard bar 101, the transverse plate 102, the connecting column 103, the through hole 1031, the cushion 20, the bottom pad 201, the middle pad 202, the outer pad 203, the third spring 30, the U-shaped rubber 40, the rubber block 50, the supporting body 60, the base ball 601, the main supporting rod 602, the side supporting rod 603, the first supporting ball 604, the second supporting ball 605, the compression bar 1, the longitudinal compression bar 11, the sleeve 2, the annular baffle table 21, the first outer sleeve 22, the inner sleeve 23, the second outer sleeve 24, the guide bar 3, the fixed shaft 4, the first spring 5, the buffer 6, the first bottom column 61, the second bottom column 62, the buffer column 63, the buffer protrusion 64, the supporting member 7, the supporting cylinder 71, the hemispherical shell 72, the second spring 8, the sleeve 9 and the counter bore 91.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1 to 4, the protecting device for the municipal bridge shown in fig. 1 and 2 comprises a mounting pier 10 arranged on a bridge floor, a pair of protection rods 101 are arranged on the mounting pier 10, the pair of protection rods 101 are connected through a transverse plate 102, a connecting column 103 is arranged between the transverse plate 102 and the mounting pier 10, a cushion pad 20 is arranged at the outer end of the protection rod 101 positioned at the outer side, and a plurality of buffer devices are arranged between the pair of protection rods 101, wherein the buffer devices comprise a pressing rod 1, a sleeve 2, a fixed shaft 4, a first spring 5 and a buffer part 6, the pressing rod 1 is connected with the protection rod 101 positioned at the outer side, the pressing rod 1 is in sliding fit with the sleeve 2, the sleeve 2 is in sliding fit with a corresponding through hole 1031 on the connecting column 103, and one end of an annular blocking platform 21 positioned at the periphery of the sleeve 2 is pressed against the inner side surface of the connecting column 103, the other end that the annular kept off platform 21 supports and presses on the guide bar 3 that is located inboard fender rod 101, fixed axle 4 sets up on being located inboard fender rod 101, sleeve 2 with 4 sliding fit of fixed axle, first spring 5 sets up sleeve 2's one end and being located between the inboard fender rod 101, just 5 covers of first spring are established on fixed axle 4, bolster 6 sets up depression bar 1 with between the fixed axle 4, just bolster 6 is located in sleeve 2.
As shown in fig. 2, the buffering device further comprises a pair of second springs 8, the second springs 8 are arranged between the inner ends of the annular blocking platforms 21 and the sleeves 9 on the inner side protection rods 101, the second springs 8 are sleeved on the corresponding guide rods 3, the guide rods 3 are in sliding fit with the corresponding sleeves 9, third springs 30 are arranged between the guide rods 3 and the corresponding sleeves 9, and the third springs 30 are located in the counter bores 91 in the corresponding sleeves 9.
As shown in fig. 3, the buffer member 6 includes a first bottom pillar 61, a second bottom pillar 62 and a buffer pillar 63 connected in sequence, one end of the first bottom pillar 61 is pressed against the fixed shaft 4, one end of the buffer pillar 63 is provided with a buffer protrusion 64, a top surface of the buffer protrusion 64 is pressed against the guard bar 101, a support member 7 is embedded in the buffer member 6, rigidity of the buffer member 6 is increased, excessive deformation of the buffer member 6 can be prevented, service life of the buffer member 6 is prolonged, service life of the buffer device is further prolonged, the support member 7 has a support cylinder 71, one end of the support cylinder 71 is provided with a hemispherical shell 72, the hemispherical shell 72 is located in the buffer protrusion 64, a plurality of support pillars 73 perpendicular to the support cylinder 71 are arranged on the periphery of the support cylinder 71, and the support pillars 73 extend to the periphery of the buffer pillar 63, since the hemispherical shell 72 supports the surface of the buffer protrusions 64 and the support pillars 73 support the lateral surfaces of the buffer pillars 63, the buffer member 6 is prevented from being excessively deformed.
In the present embodiment, the first bottom pillar 61 is in a horn shape, and the small end of the first bottom pillar 61 is connected to the fixed shaft 4, and the large end of the first bottom pillar 61 is connected to the second bottom pillar 62.
As shown in fig. 2, the sleeve 2 further includes a first outer sleeve 22, an inner sleeve 23 and a second outer sleeve 24, the inner sleeve 23 is disposed on an inner wall of an outer portion of the first outer sleeve 22, the second outer sleeve 24 is disposed on an outer wall of an outer portion of the inner sleeve 23, the annular stopper 21 is disposed on an outer periphery of the first outer sleeve 22, the press rod 1 is in sliding fit with the inner sleeve 23, one end of the second bottom pillar 62 abuts against an inner end of the inner sleeve 23, an outer end of the second outer sleeve 24 is provided with a pair of U-shaped rubber members 40, the pair of U-shaped rubber members 40 are respectively disposed on an upper side and a lower side of the press rod 1, one side arm of the U-shaped rubber member 40 is connected with the second outer sleeve 24, the other side arm of the U-shaped rubber member 40 is provided with a rubber block 50, the rubber block 50 abuts against an outer end of the connecting column 103, the bottom of the U-shaped rubber piece 40 is pressed against the longitudinal compression bar 11 of the compression bar 1, and the U-shaped rubber piece 40 is arranged, so that the buffering performance of the buffering device is further improved.
In this embodiment, the two side arms of the U-shaped rubber member 40 are not equal in length, the short arm is connected to the second outer sleeve 24, and the long arm is provided with the rubber block 50.
As shown in fig. 4, the cushion 20 includes a base pad 201, a middle pad 202 and an outer pad 203 which are connected in sequence, after the base pad 201, the middle pad 202 and the outer pad 203 are connected, the side surface of the cushion 20 is made to be a wavy surface, a support body 60 is embedded in the cushion 20, the rigidity of the cushion 20 is increased, the cushion 20 can be prevented from being excessively deformed, and the service life of the cushion 20 is prolonged, the support body 60 includes a base ball 601 located at the center of the cushion 20, a main support rod 602 arranged on the base ball 601, and a plurality of side support rods 603 arranged on the base ball 601, the main support rod 602 extends towards the outer end of the cushion 20, the side support rods 603 extend towards the side surface of the cushion 20, a first support ball 604 is arranged on the main support rod 602, a second support ball 605 is arranged on the side support rod 603, and the first support ball 604 supports the end surface of the cushion 20, the second support balls 605 support the side of the cushion pad 20, thereby preventing the cushion pad 20 from being excessively deformed.
In the structure, when this protector for municipal bridge receives the striking, blotter 20 can be first its impact force of buffering off a part, then conduct the impact force to the fender rod 101 on right side, again by the fender rod 101 on right side conduct to depression bar 1 on, depression bar 1 can compress U-shaped rubber 40, rubber block 50 and buffer 6, when depression bar 1 touches inner skleeve 23, can sleeve 2 remove this moment, and compress first spring 5 and second spring 8, and make guide bar 3 take place to remove, make third spring 30 compressed, progressively weaken the impact force that the vehicle produced, later make the impact force after weakening conduct to the bridge floor again.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. The utility model provides a protector for municipal bridge, is including setting up installation mound (10) on the bridge floor, be equipped with a pair of fender rod (101) on installation mound (10), link to each other through diaphragm (102) between a pair of fender rod (101), diaphragm (102) with be equipped with a connecting post (103) between installation mound (10), the outer end of fender rod (101) that is located the outside is equipped with blotter (20), is equipped with a plurality of buffer between a pair of fender rod (101), its characterized in that, buffer includes:
the pressure lever (1), the said pressure lever (1) couples to guard bar (101) located outside;
the pressing rod (1) is in sliding fit with the sleeve (2), one end of an annular blocking table (21) positioned on the periphery of the sleeve (2) is pressed against the inner side face of the connecting column (103), and the other end of the annular blocking table (21) is pressed against a guide rod (3) positioned on the inner side of the protective rod (101);
the fixed shaft (4), the fixed shaft (4) is arranged on the guard bar (101) positioned on the inner side, and the sleeve (2) is in sliding fit with the fixed shaft (4);
the first spring (5) is arranged between one end of the sleeve (2) and the guard rod (101) positioned on the inner side, and the first spring (5) is sleeved on the fixed shaft (4);
the buffer piece (6), the buffer piece (6) sets up the depression bar (1) with between fixed axle (4), just buffer piece (6) are located in sleeve (2).
2. The protection device for municipal bridge according to claim 1, wherein the buffer member (6) comprises a first bottom pillar (61), a second bottom pillar (62) and a buffer pillar (63) which are connected in sequence, one end of the first bottom pillar (61) abuts against the fixed shaft (4), one end of the buffer pillar (63) is provided with a buffer protrusion (64), and the top surface of the buffer protrusion (64) abuts against the protection rod (101).
3. The protection device for municipal bridge according to claim 2, characterized in that a support member (7) is embedded in the buffer member (6), the support member (7) has a support cylinder (71), one end of the support cylinder (71) is provided with a hemispherical shell (72), the hemispherical shell (72) is located in the buffer protrusion (64), the periphery of the support cylinder (71) is provided with a plurality of support columns (73) perpendicular to the support cylinder (71), and the support columns (73) extend to the periphery of the buffer column (63).
4. The protection device for the municipal bridge according to claim 3, characterized in that the buffer device further comprises a pair of second springs (8), the second springs (8) are arranged between the inner ends of the annular stop platforms (21) and sleeves (9) on the guard bars (101) located at the inner sides, the second springs (8) are sleeved on the corresponding guide bars (3), the guide bars (3) are in sliding fit with the corresponding sleeves (9), and third springs (30) are arranged between the guide bars (3) and the corresponding sleeves (9).
5. The device for protecting municipal bridge according to claim 4, wherein the sleeve (2) further comprises a first outer sleeve (22), an inner sleeve (23) and a second outer sleeve (24), the inner sleeve (23) is arranged on the inner wall of the outer part of the first outer sleeve (22), the second outer sleeve (24) is arranged on the outer wall of the outer part of the inner sleeve (23), the annular stop (21) is arranged on the periphery of the first outer sleeve (22), the pressure rod (1) is in sliding fit with the inner sleeve (23), and one end of the second bottom column (62) is pressed against the inner end of the inner sleeve (23).
6. The protection device for the municipal bridge according to claim 5, wherein a pair of U-shaped rubber members (40) are arranged at the outer end of the second outer sleeve (24), the pair of U-shaped rubber members (40) are respectively positioned at the upper side and the lower side of the compression bar (1), one side arm of each U-shaped rubber member (40) is connected with the second outer sleeve (24), the other side arm of each U-shaped rubber member (40) is provided with a rubber block (50), the rubber block (50) is pressed against the outer end of the connecting column (103), and the bottom of each U-shaped rubber member (40) is pressed against the longitudinal compression bar (11) of the compression bar (1).
7. The protection device for the municipal bridge according to claim 1, wherein the cushion pad (20) comprises a bottom pad (201), a middle pad (202) and an outer pad (203) which are connected in sequence, and the bottom pad (201), the middle pad (202) and the outer pad (203) are connected to form a wavy surface on the side of the cushion pad (20).
8. The protection device for the municipal bridge according to claim 7, wherein a support body (60) is embedded in the cushion pad (20), the support body (60) comprises a base ball (601) located at the center of the cushion pad (20), a main support rod (602) arranged on the base ball (601), and a plurality of side support rods (603) arranged on the base ball (601), the main support rod (602) extends towards the outer end of the cushion pad (20), the side support rods (603) extend towards the side of the cushion pad (20), a first support ball (604) is arranged on the main support rod (602), and a second support ball (605) is arranged on the side support rod (603).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010508209.4A CN111719423B (en) | 2020-06-05 | 2020-06-05 | Protection device for municipal bridge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010508209.4A CN111719423B (en) | 2020-06-05 | 2020-06-05 | Protection device for municipal bridge |
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| Publication Number | Publication Date |
|---|---|
| CN111719423A true CN111719423A (en) | 2020-09-29 |
| CN111719423B CN111719423B (en) | 2021-08-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010508209.4A Active CN111719423B (en) | 2020-06-05 | 2020-06-05 | Protection device for municipal bridge |
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| Country | Link |
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| CN (1) | CN111719423B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU713985A1 (en) * | 1978-04-12 | 1980-02-05 | Всесоюзный научно-исследовательский институт по креплению скважин и буровым растворам | Apparatus for running down casing sections |
| SU1148995A1 (en) * | 1983-04-11 | 1985-04-07 | Тюменское Специализированное Конструкторско-Технологическое Бюро Управления "Запсибнефтегеофизика" | Arrangement for centering deep-well instruments |
| CN207536430U (en) * | 2017-11-22 | 2018-06-26 | 武汉成华汽车饰件有限公司 | A kind of front windshield glass cover board |
| CN207974005U (en) * | 2017-11-22 | 2018-10-16 | 张瑞泉 | A kind of municipal administration bridge protective fence |
| CN208088196U (en) * | 2018-04-16 | 2018-11-13 | 赖素玲 | A kind of municipal administration bridge entrance security protective device |
| CN208997245U (en) * | 2018-08-21 | 2019-06-18 | 宁波恒元轴业有限公司 | A kind of piston rod buffer structure of automobile absorber |
| CN110983871A (en) * | 2019-12-18 | 2020-04-10 | 建湖金洋科技有限公司 | Rail damping device used in tunnel |
-
2020
- 2020-06-05 CN CN202010508209.4A patent/CN111719423B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU713985A1 (en) * | 1978-04-12 | 1980-02-05 | Всесоюзный научно-исследовательский институт по креплению скважин и буровым растворам | Apparatus for running down casing sections |
| SU1148995A1 (en) * | 1983-04-11 | 1985-04-07 | Тюменское Специализированное Конструкторско-Технологическое Бюро Управления "Запсибнефтегеофизика" | Arrangement for centering deep-well instruments |
| CN207536430U (en) * | 2017-11-22 | 2018-06-26 | 武汉成华汽车饰件有限公司 | A kind of front windshield glass cover board |
| CN207974005U (en) * | 2017-11-22 | 2018-10-16 | 张瑞泉 | A kind of municipal administration bridge protective fence |
| CN208088196U (en) * | 2018-04-16 | 2018-11-13 | 赖素玲 | A kind of municipal administration bridge entrance security protective device |
| CN208997245U (en) * | 2018-08-21 | 2019-06-18 | 宁波恒元轴业有限公司 | A kind of piston rod buffer structure of automobile absorber |
| CN110983871A (en) * | 2019-12-18 | 2020-04-10 | 建湖金洋科技有限公司 | Rail damping device used in tunnel |
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| CN111719423B (en) | 2021-08-06 |
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Effective date of registration: 20230119 Address after: 325000 No. 717 Fudong Road, Wenzhou City, Zhejiang Province Patentee after: ZHEJIANG INDUSTRY & TRADE VACATIONAL College Address before: 325000 No. 17, liming East Road, liming street, Lucheng District, Wenzhou City, Zhejiang Province Patentee before: Lv Changzheng |
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