CN217676724U

CN217676724U - Vertical prestress tensioning universal base

Info

Publication number: CN217676724U
Application number: CN202220041365.9U
Authority: CN
Inventors: 袁齐虎; 徐旭东; 王叶斌; 安刚建; 袁正璞; 王尹; 富巨烨; 王竹香
Original assignee: China Tiesiju Civil Engineering Group Co Ltd CTCE Group; Fourth Engineering Co Ltd of CTCE Group
Current assignee: China Tiesiju Civil Engineering Group Co Ltd CTCE Group; Fourth Engineering Co Ltd of CTCE Group
Priority date: 2022-01-06
Filing date: 2022-01-06
Publication date: 2022-10-28
Anticipated expiration: 2032-01-06

Abstract

The utility model discloses a vertical prestressing force tensioning general base, including jack fixing base, support panel and a plurality of supporting mechanism, it is a plurality of the supporting mechanism is the same, all include the supporting component and with go up the damping subassembly that the supporting component is connected, it is a plurality of go up the supporting component respectively with the jack fixing base rotates to be connected, it is provided with a plurality of connecting blocks, a plurality of to slide on the support panel damping subassembly is with a plurality of the connecting block one-to-one rotates to be connected, the jack fixing base with the last groove of wearing has been seted up respectively of support panel. The utility model discloses can fix the jack when vertical stretch-draw, the problem of reducible stretch-draw in-process prestressing loss simultaneously.

Description

Vertical prestress tensioning universal base

Technical Field

The utility model relates to a prestressing force engineering technical field, specifically speaking relate to a vertical prestressing force tensioning universal base.

Background

The application of the prestressed concrete technology in bridge engineering in China is more and more extensive, and tension control is one of key technologies for ensuring the production quality of prestressed concrete bridges, which is directly related to the use safety of the bridges, so that the related problems of the prestressed technology still need to be researched. Before the engineering structural member bears external load, pretension stress is applied to the steel strands in the tension module, the bending resistance and rigidity of the member are improved, the occurrence time of cracks is delayed, and the durability of the member is improved. In the mechanical structure, the stress is generated in advance, and the advantages of the mechanical structure are that the rigidity of the structure can be improved, the vibration and the elastic deformation are reduced, the elastic strength of the tension module can be obviously improved, and the original resistance is stronger.

At present, in the construction process of prestressed concrete, tensioning is the most critical construction process, and is the heaviest in the construction of prestressed concrete, in the vertical tensioning process, a jack is required to be used, and in the vertical tensioning process, the jack needs to be fixed for normal construction.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that a vertical prestressing force tensioning general base that can fix the jack is provided.

In order to solve the technical problem, the utility model adopts the following technical scheme: the utility model provides a vertical prestressing force tensioning general base, includes jack fixing base, support panel and a plurality of supporting mechanism, and is a plurality of the supporting mechanism is the same, all include the supporting component and with the damping subassembly that last supporting component is connected, and is a plurality of go up the supporting component respectively with the jack fixing base rotates to be connected, it is provided with a plurality of connecting blocks, a plurality of to slide on the support panel damping subassembly is with a plurality of the connecting block one-to-one rotates to be connected, the jack fixing base with the last penetration groove of having seted up respectively of support panel.

Further, go up the supporting component and include lead screw, sleeve and operating ring, the one end of lead screw with jack fixing base rotates to be connected, the other end stretches into in the sleeve, the operating ring include the screw ring and with the go-between that the screw ring screw thread is connected, the go-between rotates to be connected the sleeve is corresponding the one end that the lead screw stretches into, the screw ring with lead screw threaded connection.

Furthermore, the damping assembly comprises a cylinder, a piston rod, a piston and a spring, one end of the piston rod is connected with the upper support assembly, the other end of the piston rod extends into the cylinder, the piston is slidably arranged in the cylinder and connected with the piston rod, more than one penetrating hole is further formed in the piston, the spring is arranged in the cylinder, two ends of the spring are respectively connected to the cylinder and the piston, and the cylinder is rotatably connected with the corresponding connecting block.

Further, the damping assembly further comprises a damping medium filled in the cylinder barrel.

Furthermore, the upper support assembly further comprises a first connecting plate arranged at the bottom of the sleeve, the damping assembly further comprises a second connecting plate connected to the piston rod, and the first connecting plate is connected with the second connecting plate through a plurality of bolts.

Further, the jack fixing seat comprises a bottom plate, a circle of flange vertically arranged on the bottom plate, two symmetrical threaded rods connected to the flange, clamping blocks rotatably connected to one ends of the two threaded rods respectively, and operation blocks respectively arranged at the other ends of the two threaded rods, wherein the penetrating grooves are formed in the bottom plate.

Furthermore, soft rubber gaskets are respectively arranged on the two clamping blocks.

The beneficial effects of the utility model are embodied in:

the utility model discloses vertical prestressing force general base of tensioning is provided with the jack fixing base, supporting panel and a plurality of supporting mechanism, supporting panel's the ground tackle that pierces through the groove and aim at steel strand wires during the use, the accessible bolt is fixed supporting panel around the ground tackle, keep the stability of whole vertical prestressing force general base of tensioning, the jack fixing base of setting is used for fixed jack, keep the stability of jack, it is parallel and coaxial with supporting panel's the groove that pierces through on the jack fixing base, make things convenient for the stretch-draw of jack, a plurality of supporting mechanism of setting include support piece and damping component, damping component can guarantee that the jack is not at jack fixing base atress when using, but pass the instrument anchor of biography power to jack bottom and then pass power to the work anchor, reduce the loss of prestressing force.

Drawings

FIG. 1 is a schematic structural view of the vertical prestress tensioning universal base of the present invention in a use state;

FIG. 2 is a schematic structural view of the vertical prestress tensioning universal base of the present invention;

fig. 3 is a top view of the jack fixing base of the present invention;

fig. 4 is a structural sectional view of the support mechanism of the present invention;

fig. 5 is an enlarged view of a portion a of fig. 4.

The components in the drawings are labeled as follows: 1. a jack fixing seat; 101. a base plate; 102. a flange; 103. a threaded rod; 104. a clamping block; 105. an operation block; 106. a soft rubber gasket; 2. a support panel; 201. penetrating the groove; 202. a chute; 3. a support mechanism; 301. an upper support assembly; 3011. a screw rod; 3012. a sleeve; 3013. an operating ring; 3014. a threaded ring; 3015. a connecting ring; 3016. a first connecting plate; 302. a damping assembly; 3021. a cylinder barrel; 3022. a piston rod; 3023. a piston; 3024. a spring; 3025. a damping medium; 3026. a second connecting plate; 3027. a through hole; 4. connecting blocks; 5. a bolt; 6. and a baffle plate.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. The embodiments and features of the embodiments in the present application may be combined with each other without conflict. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without making creative efforts belong to the protection scope of the present invention.

It should be noted that, if directional indications such as upper, lower, left, right, front, rear \8230; \8230areprovided in the embodiment of the present invention, the directional indications are only used to explain the relative positional relationship, motion conditions, etc. between the components in a specific posture as shown in the drawings, and if the specific posture is changed, the directional indications are changed accordingly.

In addition, if there is a description relating to "first", "second", etc. in the embodiments of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is 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 addition, the meaning of "and/or" appearing throughout includes three juxtapositions, exemplified by "A and/or B" including either A or B or both A and B. In addition, "a plurality" means two or more. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory to each other or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.

See fig. 1-5.

The utility model discloses vertical prestressing force stretch-draw universal base, including jack fixing base 1, support panel 2 and a plurality of supporting mechanism 3, it is a plurality of supporting mechanism 3 is the same, all include supporting component 301 and with go up the damping subassembly 302 that supporting component 301 is connected, it is a plurality of go up supporting component 301 respectively with jack fixing base 1 rotates to be connected, it is provided with a plurality of connecting blocks 4, a plurality of to slide on the support panel 2 damping subassembly 302 is with a plurality of connecting block 4 one-to-one rotates to be connected, jack fixing base 1 with penetrating groove 201 has been seted up on the support panel 2 respectively.

The utility model discloses vertical prestressing force stretch-draw general base is provided with jack fixing base 1, supporting panel 2 and a plurality of supporting mechanism 3, supporting panel 2's the ground tackle that pierces through groove 201 and aim at steel strand wires during the use, accessible bolt fixes supporting panel 2 around the ground tackle, keep the stability of whole vertical prestressing force stretch-draw general base, jack fixing base 1 of setting is used for fixed jack, keep the stability of jack, it parallels and is coaxial with supporting panel 2's the groove 201 that pierces through on the jack fixing base 1, make things convenient for the stretch-draw of jack, a plurality of supporting mechanism 3 of setting include supporting component 301 and damping component 302, damping component 302 can guarantee that the jack is not at jack fixing base 1 atress when using, but to the instrument anchor of jack bottom then pass power to the work anchor on, reduce prestressing force's loss.

In an embodiment, the upper supporting assembly 301 includes a screw 3011, a sleeve 3012, and an operating ring 3013, one end of the screw 3011 is rotatably connected to the jack fixing seat 1, and the other end of the screw extends into the sleeve 3012, the operating ring 3013 includes a threaded ring 3014 and a connecting ring 3015 in threaded connection with the threaded ring 3014, the connecting ring 3015 is rotatably connected to the sleeve 3012 corresponding to the end of the screw 3011 that extends into, and the threaded ring 3014 is in threaded connection with the screw 3011. Design like this, through threaded connection of screw ring 3014 and lead screw 3011, the accessible is rotatory screw ring 3014 and is adjusted the length of screw ring 3014, and then adjusts the distance between jack fixing base 1 and the ground tackle, conveniently adjusts the distance between jack and ground tackle promptly.

In one embodiment, the damping assembly 302 includes a cylinder 3021, a piston rod 3022, a piston 3023, and a spring 3024, one end of the piston rod 3022 is connected to the upper support assembly 301, the other end of the piston rod 3022 extends into the cylinder 3021, the piston 3023 is slidably disposed in the cylinder 3021 and connected to the piston rod 3022, the piston 3023 further has one or more through holes 3027, the spring 3024 is disposed in the cylinder 3021 and has two ends respectively connected to the cylinder 3021 and the piston 3023, and the cylinder 3021 is rotatably connected to the corresponding connecting block 4. Due to the design, the damping effect can be realized to a certain extent through the elastic action of the spring 3024, and the stability of the jack during construction is ensured.

In one embodiment, the damping assembly 302 further includes a damping medium 3025 filled in the cylinder bore 3021. By doing so, the shock absorbing effect of the damping assembly 302 can be enhanced to some extent by the damping medium 3025, in this embodiment, the damping medium 3025 is provided as air.

In one embodiment, the upper support assembly 301 further includes a first connecting plate 3016 disposed at the bottom of the sleeve 3012, and the damping assembly 302 further includes a second connecting plate 3026 connected to the piston rod 3022, and the first connecting plate 3016 and the second connecting plate 3026 are connected by a plurality of bolts 5. By the design, the upper supporting component 301 and the damping component 302 are connected through the bolt 5, so that the mounting and dismounting are convenient, the upper supporting component and the damping component are separated when not in use, and the carrying is convenient.

In an embodiment, the jack fixing base 1 includes a bottom plate 101, a circle of flanges 102 vertically disposed on the bottom plate 101, two symmetrical threaded rods 103 threadedly coupled to the flanges 102, clamping blocks 104 rotatably coupled to one ends of the two threaded rods 103, and an operating block 105 disposed at the other end of the two threaded rods 103, wherein the penetrating slot 201 is opened on the bottom plate 101. In this embodiment, the clamping block 104 is disposed at one end of the threaded rod 103 located at the inner side of the flange 102, the operating block 105 is disposed at one end of the threaded rod 103 located at the outer side of the flange 102, and the cross section of the operating block 105 is circular, so that the operating block 105 is rotated to drive the threaded rod 103 to rotate, and then the jack is telescopically clamped on the flange 102, thereby maintaining the stability of the jack.

In an embodiment, two of the clamping blocks 104 are further provided with a soft rubber gasket 106 respectively. By the design, the soft rubber gasket 106 ensures that the shell of the jack is not damaged when the jack is clamped.

In an embodiment, the connecting device further comprises a baffle 6 for preventing the connecting block 4 from sliding, a sliding groove 202 is formed in the supporting panel 2, one part of the baffle 6 extends into the sliding groove 202, and the other part of the baffle 6 is in plug-in fit with the supporting panel 2. Design like this, can guarantee that connecting block 4 slides, the unstable condition of structure when using is avoided appearing to the jack after the jack installation.

It should be understood that the examples and embodiments described herein are for illustrative purposes only and are not intended to limit the scope of the present disclosure, as various modifications or changes in light thereof will be suggested to persons skilled in the art and are to be included within the spirit and purview of this application.

Claims

1. The utility model provides a vertical prestressing force general base that stretches out, its characterized in that, is including jack fixing base (1), supporting panel (2) and a plurality of supporting mechanism (3), and is a plurality of supporting mechanism (3) are the same, all include supporting component (301) and with damping component (302) that last supporting component (301) are connected, and are a plurality of go up supporting component (301) respectively with jack fixing base (1) rotates to be connected, it is provided with a plurality of connecting blocks (4) to slide on supporting panel (2), and is a plurality of damping component (302) and a plurality of connecting block (4) one-to-one rotates to be connected, jack fixing base (1) with penetrating groove (201) has been seted up on supporting panel (2) respectively.

2. The vertical prestress tensioning universal base according to claim 1, wherein the upper support assembly (301) comprises a lead screw (3011), a sleeve (3012) and an operating ring (3013), one end of the lead screw (3011) is rotatably connected with the jack fixing seat (1), the other end of the lead screw extends into the sleeve (3012), the operating ring (3013) comprises a threaded ring (3014) and a connecting ring (3015) in threaded connection with the threaded ring (3014), the connecting ring (3015) is rotatably connected to one end of the sleeve (3012) corresponding to the lead screw (3011) in extending, and the threaded ring (3014) is in threaded connection with the lead screw (3011).

3. The vertically prestressed tensioning universal base according to claim 2, wherein the damping assembly (302) comprises a cylinder (3021), a piston rod (3022), a piston (3023) and a spring (3024), one end of the piston rod (3022) is connected to the upper support assembly (301), the other end of the piston rod (3022) extends into the cylinder (3021), the piston (3023) is slidably disposed in the cylinder (3021) and connected to the piston rod (3022), more than one through hole (3027) is further formed in the piston (3023), the spring (3024) is disposed in the cylinder (3021) and both ends of the spring are respectively connected to the cylinder (3021) and the piston (3023), and the cylinder (3021) is rotatably connected to the corresponding connecting block (4).

4. The vertically prestressed tensioning universal mount according to claim 3, characterized in that said damping assembly (302) further comprises a damping medium (3025) filled in said cylinder (3021).

5. The vertically prestressed tensioning universal mount according to claim 3, wherein the upper support assembly (301) further comprises a first connecting plate (3016) disposed at the bottom of the sleeve (3012), the damping assembly (302) further comprises a second connecting plate (3026) connected to the piston rod (3022), and the first connecting plate (3016) and the second connecting plate (3026) are connected through a plurality of bolts (5).

6. The vertically prestressed tensioning universal base according to claim 1, wherein said jack fixing base (1) comprises a bottom plate (101), a ring of flanges (102) vertically arranged on said bottom plate (101), two symmetrical threaded rods (103) screwed on said flanges (102), clamping blocks (104) rotatably connected to one ends of said two threaded rods (103), and operation blocks (105) respectively arranged at the other ends of said two threaded rods (103), said penetrating slot (201) being opened on said bottom plate (101).

7. The vertically prestressed tensioning universal base according to claim 6, wherein two said clamping blocks (104) are respectively provided with a soft rubber gasket (106).