CN214535442U - Portable scalable tripod - Google Patents

Portable scalable tripod Download PDF

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Publication number
CN214535442U
CN214535442U CN202120329967.XU CN202120329967U CN214535442U CN 214535442 U CN214535442 U CN 214535442U CN 202120329967 U CN202120329967 U CN 202120329967U CN 214535442 U CN214535442 U CN 214535442U
Authority
CN
China
Prior art keywords
locking
mobile jib
lantern ring
groove
sleeve ring
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN202120329967.XU
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Chinese (zh)
Inventor
张书杰
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Changzhou Nelson Electronics Co ltd
Original Assignee
Changzhou Nelson Electronics Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Changzhou Nelson Electronics Co ltd filed Critical Changzhou Nelson Electronics Co ltd
Priority to CN202120329967.XU priority Critical patent/CN214535442U/en
Application granted granted Critical
Publication of CN214535442U publication Critical patent/CN214535442U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model relates to a portable scalable tripod, belong to the field of shooting the support, it includes the mobile jib, leg assembly, the adapter sleeve ring and the locking collar, the adapter sleeve ring cover is established on the mobile jib, leg assembly is provided with three groups at least, each leg assembly includes bracing piece and connecting rod, the one end adapter sleeve ring of bracing piece is articulated, the one end of connecting rod is articulated with the one end of mobile jib, the other end is articulated with the middle part of bracing piece, the locking through-hole has been seted up to the inside of the locking collar, the locking collar is established on the adapter sleeve ring through locking through-hole cover, the locking collar and adapter sleeve ring threaded connection, the adapter sleeve ring is made by elastic material, a plurality of deformation breachs have been seted up on the outer wall that the adapter sleeve ring is connected with the locking collar, a plurality of deformation breach is arranged along the circumference of adapter sleeve ring. This application has the landing leg subassembly that makes the tripod support open the adjustment of angle and fixed convenient simple effect more.

Description

Portable scalable tripod
Technical Field
The application relates to the field of shooting supports, in particular to a portable telescopic tripod.
Background
A tripod is generally a support with three legs for holding measuring instruments or cameras and the like, which is generally made of metal, wood or plastic. The tripod has the function which is not neglected by both amateur users and professional users, and the main function of the tripod is to stabilize the camera so as to achieve certain photographic effects.
Chinese utility model patent with CN201475612U discloses a tripod comprising a base, legs and a support. This base is installed in proper order on support fastening seat by first support, second support, third support, check ring and nut and is formed, and second support and third support wherein can carry out the rotation on the horizontal direction for support fastening seat to the landing leg of installing on second support and third support is driven and is carried out the horizontal rotation, consequently can be according to the needs of shooting the environment and change the mounted position and the shooting angle of tripod in a flexible way.
In view of the above-mentioned related technologies, the inventor believes that when the opening angle of each leg is adjusted, the opening angle of each leg needs to be adjusted and fixed separately in turn, so that the opening angle of the legs of the tripod is inconvenient to adjust, and the angles of the legs are difficult to keep the same, thereby affecting the support stability of the tripod.
SUMMERY OF THE UTILITY MODEL
In order to improve the inconvenient problem of the landing leg angle adjustment of tripod support, this application provides a portable scalable tripod support.
The application provides a portable scalable tripod adopts following technical scheme:
a portable telescopic tripod comprises a main rod, a leg assembly, a connecting sleeve ring and a locking sleeve ring, wherein the connecting sleeve ring is sleeved on the main rod and is in sliding connection with the main rod, the leg assembly is positioned on one side of the main rod in the axial direction, at least three groups of leg assemblies are arranged on each leg assembly, each leg assembly comprises a support rod and a connecting rod, one end of each support rod is hinged with the connecting sleeve ring, the connecting rod is positioned on one side of the support rod close to the main rod, one end of each connecting rod is hinged with one end of the main rod, the other end of each connecting rod is hinged with the middle part of the corresponding support rod, a locking through hole is formed in each locking sleeve ring, the locking sleeve ring is sleeved on the connecting sleeve ring through the locking through hole, the locking sleeve ring is in threaded connection with the connecting sleeve ring, the connecting sleeve ring is made of an elastic material, a plurality of deformation notches are formed in the outer wall of the connecting sleeve ring and the locking sleeve ring, the deformation notches are arranged along the circumferential direction of the connecting sleeve ring, the locking through holes are tapered holes, and the aperture of each locking through hole is gradually reduced towards the direction far away from the connecting sleeve ring.
Through adopting above-mentioned technical scheme, when the staff opened each landing leg subassembly of tripod support, earlier the locking lantern ring of unscrewing for connect the lantern ring and can slide on the mobile jib. Subsequently, the worker pushes the link collar toward the direction close to the leg assembly, so that the support rods are gradually opened by the hinge support of the link rods. When each bracing piece opens the angle that needs, the staff screws the locking lantern ring, because the connecting sleeve ring is made by elastic material, the locking through-hole of the locking lantern ring is the bell mouth, the connecting sleeve ring is under the shrink locking effect of the locking lantern ring, elastic deformation takes place for the corresponding shrink of the connecting sleeve ring, thereby the connecting sleeve ring is held the mobile jib tightly, make the connecting sleeve ring fixed with the mobile jib, then each landing leg assembly's bracing piece and mobile jib relatively fixed, thereby make the landing leg assembly of tripod support open the adjustment of angle and fix more convenient simple.
Optionally, the two sides of the axis of the locking lantern ring are symmetrically and fixedly provided with the elastic plates.
Through adopting above-mentioned technical scheme, the staff pulls the locking lantern ring through the elasticity board for the locking lantern ring rotates, and the convenience is to the locking lantern ring and connect the tight or the pine of screwing between the lantern ring.
Optionally, the fixed cover of the one end of bracing piece far away from the connection lantern ring is equipped with anti-skidding cover.
Through adopting above-mentioned technical scheme for the bracing piece is when supporting, and difficult slipping has improved the support stability of landing leg subassembly.
Optionally, the mobile jib has seted up a plurality of guide slots on self length direction, the fixed gib block that is provided with each guide slot looks adaptation on the inner wall of the connection lantern ring, the gib block is located the guide slot.
Through adopting above-mentioned technical scheme, the setting of first guide way and first gib block plays the guide effect to connecting the lantern ring and sliding on the mobile jib, has both made the removal of connecting the lantern ring more steady, simultaneously, also makes the landing leg subassembly more stable.
Optionally, the one end that landing leg subassembly was kept away from to the mobile jib is arranged and is provided with a plurality of telescopic tube, each telescopic tube and mobile jib coaxial line, each telescopic tube all with mobile jib sliding connection, and adjacent two sliding connection between the telescopic tube all is provided with between two adjacent telescopic tube and the mobile jib and is pulled between the telescopic tube that is close to the mobile jib and detain, it is used for locking fixed telescopic tube to pull the knot.
Through adopting above-mentioned technical scheme, effectively improve the height of tripod to make the height of tripod adjust the shrink as required, improve the practicality and the portability of tripod.
Optionally, be located the most distal of mobile jib axial telescopic tube's one end is fixed with articulated seat, the one end that telescopic tube was kept away from to articulated seat rotates and is connected with the mount pad, be provided with fixed knot between mount pad and the articulated seat and construct, through fixed knot structure relatively fixed between mount pad and the articulated seat.
Through adopting above-mentioned technical scheme, the mount pad can be used for installing relevant camera device or measuring instrument etc. and rotate between mount pad and the articulated seat and be connected to relatively fixed through fixed knot structure, and then conveniently adjust shooting or measurement angle.
It is optional, articulated seat elastic material makes, articulated seat includes bottom plate and two mounting panels of vertical fixation on the bottom plate, two the relative parallel arrangement of mounting panel, two be formed with the spread groove between the mounting panel, the mounting panel is close to the fixed connecting block that is provided with spread groove looks adaptation of the one end of articulated seat, the connecting block is located the spread groove, laminate mutually between connecting block and two mounting panels, fixed knot constructs including the connecting bolt and fixes the knob in connecting bolt one end, the connecting bolt is worn to establish in each mounting panel and connecting block, the connecting block all rotates with the connecting bolt with the mounting panel that is close to the knob to be connected, keeps away from the mounting panel and the connecting bolt threaded connection of knob.
Through adopting above-mentioned technical scheme, the staff loosens the connecting bolt through the knob soon for can rotate relatively between connecting block and the connecting bolt, then can adjust the angle of mount pad. After the angle of needs is adjusted to the mount pad, the staff screws the connecting bolt through the knob, the one end and one of them mounting panel threaded connection of connecting bolt, the one end and another mounting panel butt of knob, and the mounting panel is elastic material for the mounting panel pressurized takes place elastic deformation, then the mounting panel presss from both sides the connecting block that is located between two mounting panels tightly, then makes relatively fixed between mount pad and the articulated seat, thereby conveniently adjusts and fixes the installation angle of mount pad.
Optionally, a circular groove is formed in one side wall of the connecting block, the groove and the connecting bolt are coaxial, a plurality of clamping strips are fixedly arranged in the groove and evenly distributed along the circumferential direction of the groove, clamping grooves are formed between every two adjacent clamping strips, and a plurality of clamping blocks matched with the clamping grooves are fixedly arranged on the inner wall, close to the connecting groove, of the mounting plate.
By adopting the technical scheme, on one hand, when the mounting seat and the hinge seat are relatively fixed, the clamping blocks and the clamping grooves are embedded and connected, so that the connection stability between the mounting seat and the hinge seat is improved; on the other hand, when the angle of the mounting seat is adjusted, the connecting blocks and the connecting grooves jump and shift, so that the angle of the mounting seat can be quantitatively adjusted conveniently, and the convenience of angle adjustment is improved.
In summary, the present application includes at least one of the following beneficial technical effects:
1. the adjusting and fixing of the opening angle of the leg assembly of the tripod are more convenient and simpler by connecting the lantern ring and the locking lantern ring;
2. the guide groove and the guide strip are arranged, so that the connecting sleeve ring can move on the main rod in a limiting and guiding manner, and the supporting leg assembly is more stable;
3. through setting up articulated seat and fixed knot to construct for the installation angle of mount pad can be adjusted, and the installation of the mount pad of also being convenient for simultaneously is fixed.
Drawings
Fig. 1 is a schematic view of the overall structure of a portable telescopic tripod according to an embodiment of the present application.
Fig. 2 is an exploded view of the structure between the mount and the hinge mount in the embodiment of the present application.
Fig. 3 is a schematic view of the overall structure of the mount in the embodiment of the present application.
Fig. 4 is a partial structural schematic view of a portable retractable tripod according to an embodiment of the present application.
Fig. 5 is an exploded view of the structure between the adapter collar and the locking collar in the embodiment of the present application.
Description of reference numerals: 1. a mounting seat; 11. connecting blocks; 111. a groove; 112. clamping the strip; 113. a card slot; 2. a hinged seat; 21. a base plate; 22. mounting a plate; 221. a clamping block; 23. connecting grooves; 24. a connecting bolt; 25. a knob; 3. a telescoping assembly; 31. a telescopic sleeve; 32. pulling and buckling; 4. a main rod; 41. a connecting lantern ring; 411. deforming the notch; 42. a locking collar; 421. a tension plate; 422. a guide strip; 423. a guide groove; 424. locking the through hole; 5. a leg assembly; 51. a support bar; 511. an anti-slip sleeve; 52. a connecting rod.
Detailed Description
The present application is described in further detail below with reference to figures 1-5.
The embodiment of the application discloses portable scalable tripod. Referring to fig. 1, a portable telescopic tripod comprises a mounting seat 1, a hinged seat 2, a telescopic assembly 3 and a main rod 4 which are arranged in sequence from top to bottom. Mount pad 1 can be used for installing relevant camera device or measuring device, and mount pad 1 rotates with articulated seat 2 to be connected, and is provided with fixed knot between mount pad 1 and the articulated seat 2 and constructs, relatively fixed through fixed knot between mount pad 1 and the articulated seat 2. Articulated seat 2 and the one end fixed connection of flexible subassembly 3, flexible subassembly 3 keeps away from the one end of articulated seat 2 and is connected with mobile jib 4, and flexible subassembly 3 is used for adjusting the holistic height of tripod support. The 4 axial outsides of mobile jib are provided with three landing leg assemblies 5 of group, and three landing leg assemblies 5 of group are evenly arranged along the circumference of mobile jib 4, and landing leg assembly 5 is connected with mobile jib 4, and landing leg assembly 5 supports for providing of tripod support.
Referring to fig. 2, the hinge base 2 is made of PE plastic, the hinge base 2 includes a bottom plate 21 fixedly connected to the telescopic assembly 3 and two mounting plates 22 vertically disposed on the bottom plate 21, the two mounting plates 22 are disposed in parallel, and the two mounting plates 22 and the bottom plate 21 are integrally formed. A connecting groove 23 is formed between the two mounting plates 22, and a connecting block 11 matched with the connecting groove 23 is integrally formed at one end of the mounting base 1 close to the hinge base 2.
Referring to fig. 2, the fixing structure includes a connection bolt 24 and a knob 25 fixed to one axial end of the connection bolt 24. When mount pad 1 and articulated seat 2 are connected, connecting block 11 is located spread groove 23, and connecting block 11 and mounting panel 22 laminate mutually, and connecting bolt 24 wears to establish in connecting block 11 and each mounting panel 22. The connecting block 11 and the mounting plate 22 relatively close to the knob 25 are rotatably connected with the connecting bolt 24, and the mounting plate 22 relatively far from the knob 25 is in threaded connection with the connecting bolt 24. The connecting bolt 24 is screwed by the knob 25, so that the mounting plates 22 are elastically deformed under pressure, and then the mounting plates 22 clamp the connecting block 11 between the two mounting plates 22, so that the mounting base 1 and the hinge base 2 are relatively fixed.
Referring to fig. 2 and 3, a circular groove 111 is formed in one side wall of the connecting block 11, a plurality of clamping strips 112 are integrally formed on the connecting block 11, the clamping strips 112 are located in the groove 111, the clamping strips 112 are uniformly distributed along the circumferential direction of the groove 111, and a clamping groove 113 is formed between every two adjacent connecting clamping strips 112. A plurality of clamping blocks 221 matched with the clamping grooves 113 are integrally formed on the inner wall of each mounting plate 22 close to the connecting groove 23. When the hinge base 2 is connected with the mounting base 1, the groove 111 and the connecting bolt 24 are coaxial, and each clamping block 221 is located in the clamping groove 113.
Referring to fig. 1, the telescopic assembly 3 includes four telescopic tubes 31, the four telescopic tubes 31 and the main rod 4 are coaxial, the diameter of each telescopic tube 31 is gradually reduced from the direction far away from the main rod 4, the telescopic tube 31 with a relatively smaller diameter in the two adjacent telescopic tubes 31 is arranged in the telescopic tube 31 with a relatively larger diameter in a penetrating manner, and the two telescopic tubes are connected in a sliding manner. The telescopic tube 31 relatively close to the main rod 4 is arranged in the main rod 4 in a penetrating way and is connected with the main rod 4 in a sliding way. Wrenching buckles 32 are arranged between two adjacent telescopic pipes 31 and between the main rod 4 and the telescopic pipe 31 close to the main rod 4, and the wrenching buckles 32 are used for locking and fixing the telescopic pipes 31 so that the telescopic pipes 31 are not easy to freely slide.
Referring to fig. 4, the leg assembly 5 includes a support rod 51 and a connection rod 52, a connection sleeve ring 41 is slidably sleeved on the main rod 4, one end of each support rod 51 in the length direction is hinged to the connection sleeve ring 41, an anti-slip sleeve 511 is sleeved on the other end of each support rod 51 to improve the anti-slip performance of the leg assembly 5, and the anti-slip sleeve 511 and the support rods 51 are fixed through screw connection. The connecting rod 52 is located on one side of the supporting rod 51 close to the main rod 4, one end of the connecting rod 52 in the length direction is hinged to one end of the main rod 4 far away from the telescopic assembly 3, and the other end of the connecting rod 52 is hinged to the middle of the supporting rod 51.
Referring to fig. 4 and 5, the main rod 4 is provided with a locking collar 42, a locking through hole 424 is formed in the locking collar 42, the locking collar 42 is slidably sleeved on the main rod 4 through the locking through hole 424, the locking through hole 424 is a tapered hole, and the aperture of the locking through hole 424 is gradually reduced towards the direction away from the connecting collar 41. Connect the lantern ring 41 and adopt PE plastics to make, locking lantern ring 42 and the threaded connection of connecting the lantern ring 41, connect the outer wall that is connected with locking lantern ring 42 on the lantern ring 41 and seted up four deformation notches 411, four deformation notches 411 are arranged along the circumference of connecting the lantern ring 41. By screwing the locking collar 42, the corresponding contraction of the connecting collar 41 generates elastic deformation under the contraction locking action of the locking collar 42, so that the main rod 4 is tightly held by the connecting collar 41, and the connecting collar 41 and the main rod 4 are relatively fixed.
Referring to fig. 4 and 5, in order to facilitate the rotation of the locking collar 42, two elastic plates 421 are integrally formed on the locking collar 42, and the two elastic plates 421 are symmetrically arranged at two axial sides of the locking collar 42. In order to make the connection lantern ring 41 more stable along the mobile jib 4 axial displacement, the guide way 423 has been seted up along self axial to the outer wall of mobile jib 4, and is corresponding, integrated into one piece have in the connection lantern ring 41 with the gib block 422 of guide way 423 looks adaptation, gib block 422 is located the guide way 423, plays spacing guide's effect to the removal of connecting the lantern ring 41.
The implementation principle of the portable telescopic tripod provided by the embodiment of the application is as follows: when using the tripod of this application, the staff opens leg assembly 5 earlier, through the pine locking lantern ring 42 of unscrewing for connect the lantern ring 41 and can slide on mobile jib 4, the staff promotes to connect lantern ring 41 and moves towards being close to leg assembly 5 direction, thereby each bracing piece 51 opens gradually under the articulated supporting role of each connecting rod 52. When the support rods 51 are opened to a desired angle, the worker screws the locking collar 42, so that the connecting collar 41 is fixed to the main rod 4, and then the support rods 51 of the leg assemblies 5 are fixed to the main rod 4. Afterwards, the staff adjusts the holistic height of this tripod through flexible subassembly 3, and afterwards, the staff adjusts the relative angle between mount pad 1 and the articulated seat 2 through fixed knot structure.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims (8)

1. The utility model provides a portable scalable tripod which characterized in that: including mobile jib (4), landing leg subassembly (5), the adapter ring (41) and the locking collar (42), the adapter ring (41) cover is established on mobile jib (4), adapter ring (41) and mobile jib (4) sliding connection, landing leg subassembly (5) are located mobile jib (4) axial one side, landing leg subassembly (5) are provided with three groups at least, each landing leg subassembly (5) include bracing piece (51) and connecting rod (52), the one end adapter ring (41) of bracing piece (51) is articulated, connecting rod (52) are located one side that bracing piece (51) are close to mobile jib (4), the one end of connecting rod (52) is articulated with the one end of mobile jib (4), the other end of connecting rod (52) is articulated with the middle part of bracing piece (51), locking through-hole (424) has been seted up to the inside of the locking collar (42), the locking collar (42) is established on adapter ring (41) through locking through-hole (424), locking lantern ring (42) and connection lantern ring (41) threaded connection, connection lantern ring (41) are made by elastic material, connect lantern ring (41) and locking lantern ring (42) and be connected and seted up a plurality of breach of deformation (411) on the outer wall that is connected, it is a plurality of breach of deformation (411) are arranged along the circumference of connecting lantern ring (41), locking through-hole (424) are the bell mouth, the aperture orientation of locking through-hole (424) is kept away from the direction convergent setting of connecting lantern ring (41).
2. The portable telescopic tripod according to claim 1, wherein: the two sides of the axis of the locking lantern ring (42) are symmetrically and fixedly provided with elastic plates (421).
3. The portable telescopic tripod according to claim 1, wherein: and an anti-skidding sleeve (511) is fixedly sleeved at one end of the support rod (51) far away from the connecting lantern ring (41).
4. The portable telescopic tripod according to claim 1, wherein: the mobile phone is characterized in that the main rod (4) is provided with a plurality of guide grooves (423) along the length direction, guide strips (422) matched with the guide grooves (423) are fixedly arranged on the inner wall of the connecting sleeve ring (41), and the guide strips (422) are located in the guide grooves (423).
5. The portable telescopic tripod according to claim 1, wherein: the one end that landing leg subassembly (5) were kept away from in mobile jib (4) is arranged and is provided with a plurality of telescopic tube (31), each telescopic tube (31) and mobile jib (4) coaxial line, each telescopic tube (31) all with mobile jib (4) sliding connection, and adjacent two sliding connection between telescopic tube (31), between two adjacent telescopic tube (31) and mobile jib (4) and be close to between telescopic tube (31) of mobile jib (4) all be provided with between the spanner and detain (32), spanner detains (32) and is used for locking fixed telescopic tube (31).
6. The portable telescopic tripod according to claim 5, wherein: be located mobile jib (4) axial furthest the one end of telescopic tube (31) is fixed with articulated seat (2), the one end rotation of telescopic tube (31) is kept away from in articulated seat (2) is connected with mount pad (1), be provided with fixed knot between mount pad (1) and articulated seat (2) constructs, through fixed knot relatively fixed between mount pad (1) and articulated seat (2).
7. The portable telescopic tripod according to claim 6, wherein: articulated seat (2) elastic material makes, articulated seat (2) include two mounting panel (22) of bottom plate (21) and vertical fixation on bottom plate (21), two mounting panel (22) parallel arrangement relatively, two be formed with spread groove (23) between mounting panel (22), one end fixed being provided with of mounting panel (1) near articulated seat (2) is connected block (11) with spread groove (23) looks adaptation, connecting block (11) are located spread groove (23), laminate between connecting block (11) and two mounting panel (22), fixed knot constructs including connecting bolt (24) and knob (25) of fixing at connecting bolt (24) one end, connecting bolt (24) are worn to establish in each mounting panel (22) and connecting block (11), connecting block (11) and mounting panel (22) that are close to knob (25) all are connected with connecting bolt (24) rotation, the mounting plate (22) far away from the knob (25) is in threaded connection with the connecting bolt (24).
8. The portable telescopic tripod according to claim 7, wherein: the connecting block is characterized in that a circular groove (111) is formed in one side wall of the connecting block (11), the groove (111) and the connecting bolt (24) are coaxial, a plurality of clamping strips (112) are arranged in the groove (111) in an internal fixing mode, the clamping strips (112) are evenly distributed along the circumferential direction of the groove (111), clamping grooves (113) are formed between every two adjacent clamping strips (112), and each clamping block (221) matched with each clamping groove (113) is fixedly arranged on the inner wall, close to the connecting groove (23), of the mounting plate (22).
CN202120329967.XU 2021-02-04 2021-02-04 Portable scalable tripod Expired - Fee Related CN214535442U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202120329967.XU CN214535442U (en) 2021-02-04 2021-02-04 Portable scalable tripod

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202120329967.XU CN214535442U (en) 2021-02-04 2021-02-04 Portable scalable tripod

Publications (1)

Publication Number Publication Date
CN214535442U true CN214535442U (en) 2021-10-29

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN202120329967.XU Expired - Fee Related CN214535442U (en) 2021-02-04 2021-02-04 Portable scalable tripod

Country Status (1)

Country Link
CN (1) CN214535442U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114199615A (en) * 2021-11-01 2022-03-18 中铁第四勘察设计院集团有限公司 Piston type soil sampler

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114199615A (en) * 2021-11-01 2022-03-18 中铁第四勘察设计院集团有限公司 Piston type soil sampler

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Granted publication date: 20211029

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