CN218815407U - V-shaped external tensioning device - Google Patents
V-shaped external tensioning device Download PDFInfo
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- CN218815407U CN218815407U CN202222967373.9U CN202222967373U CN218815407U CN 218815407 U CN218815407 U CN 218815407U CN 202222967373 U CN202222967373 U CN 202222967373U CN 218815407 U CN218815407 U CN 218815407U
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Abstract
The utility model discloses an outer tensioning equipment of V type body belongs to carbon fiber plate stretch-draw technical field. One end of each of the two force arms is pivoted with each other, and the other end of each of the two force arms is movably connected with the counter-force block and the tensioning end anchor frame through bearings respectively; the jack is arranged between the two force arms and is respectively and fixedly connected with the two force arms through a bearing; the jack can drive the two force arms to rotate around the pivot shaft of the jack and the tension shaft, so that the jack can drive the anchor block to move in the tensioning end anchor frame through the counter-force block and the tensioning screw rod in sequence by means of the two force arms, and tensioning of the carbon fiber plate is completed. The utility model discloses an outer tensioning equipment of V type body through optimizing prestressing force carbon fiber plate stretch-draw system's overall structure, realizes the external stretch-draw of carbon fiber plate for prestressing force carbon fiber plate stretch-draw system's ground tackle size can not receive the influence of jack size, thereby can realize prestressing force carbon fiber plate stretch-draw system's frivolousization.
Description
Technical Field
The utility model belongs to the technical field of carbon fiber plate stretch-draw, more specifically says, relates to an outer tensioning equipment of V type body.
Background
The prestressed carbon fiber plate tensioning system is widely applied to structural reinforcement, and the main principle is that the strength of a carbon fiber material can be fully utilized by applying prestress on the carbon fiber plate, so that the bearing capacity of a member is improved, concrete cracks are sealed, and the stress state of concrete is improved. The specific system composition can refer to a prestressed carbon fiber tensioning device with the application number of CN201711174409.5 and the publication date of 2018, 02, 23 and 2018.
In a typical situation, the prestressed carbon fiber plate tensioning system adopts a jack to perform tensioning, two ends of the jack are respectively contacted with a tensioning end anchor frame and a tensioning end stop block, and the jack draws an anchor bolt to move by extruding the tensioning end stop block so as to achieve the purpose of tensioning the carbon fiber plate.
The prestressed carbon fiber plate tensioning system has the following defects: because the jack size is great, receives the jack size influence, the ground tackle size is also great, not only causes the waste of material and the inconvenience of site operation, still influences the popularization of prestressing force carbon fiber plate stretch-draw system.
Disclosure of Invention
1. Problems to be solved
The problem that the ground tackle size received jack size restriction among the prior art, the utility model provides a V type external tension device of body through the overall structure who optimizes prestressing force carbon fiber board stretch-draw system, realizes the external stretch-draw of carbon fiber board for prestressing force carbon fiber board stretch-draw system's ground tackle size can not receive the influence of jack size, thereby can realize prestressing force carbon fiber board stretch-draw system's frivolousization.
2. Technical scheme
In order to solve the above problems, the utility model adopts the following technical proposal.
The utility model provides an outer tensioning equipment of V type body is applied to prestressing force carbon fiber plate tensioning system, prestressing force carbon fiber plate tensioning system is including stretching out the end, stretch out the end including the counter-force piece, with counter-force piece parallel arrangement stretch out the end anchor frame, set up in stretch out the end anchor frame and can for stretch out the anchor block that the end anchor frame removed and stretch-draw screw rod, stretch-draw screw rod one end fixed connection anchor block, the other end pass stretch out and draw end anchor frame and stretch out and draw end dog fixed connection, external tensioning equipment includes:
one end of each of the two force arms is pivoted with each other, and the other end of each of the two force arms is movably connected with the counter-force block and the tensioning end anchor frame through bearings respectively;
the jack is arranged between the two force arms and is respectively and fixedly connected with the two force arms through bearings; the jack can drive two arms of force to rotate around the pivot shaft of the two, so that the jack can drive the anchor block to move in the tensioning end anchor frame sequentially through the counter-force block and the tensioning screw rod by means of the two arms of force, and tensioning of the carbon fiber plate is completed.
Preferably, at least one of the two force arms is provided with a hollow part or an installation part, and the connecting line direction between the hollow parts or the installation parts of the two force arms is parallel to the stretching direction of the carbon fiber plate.
Preferably, the in vitro tensioning device further comprises:
the core penetrating block is fixedly arranged at the hollow parts or the mounting parts of the two force arms, and the middle part of the core penetrating block is provided with a core penetrating hole;
the jack comprises a screw rod penetrating through the jack, and two ends of the screw rod penetrate through the penetrating hole to be connected with the two force arms through the penetrating block.
Preferably, the piercing block further comprises:
the clamping protrusions are arranged on two opposite side surfaces of the core penetrating block;
the hollow part or the installation part is provided with opposite positioning holes, and the penetrating block is fixedly connected with the force arm through a clamping protrusion embedded in the positioning holes.
Preferably, one of the two force arms is a wide force arm, and the other force arm is a narrow force arm.
3. Advantageous effects
Compared with the prior art, the beneficial effects of the utility model are that:
compare the tensioning equipment of current carbon fiber plate, the utility model discloses an optimize prestressing force carbon fiber plate tensioning system's overall structure, realize the external stretch-draw of carbon fiber plate for prestressing force carbon fiber plate tensioning system's ground tackle size can not receive the influence of jack size, thereby ground tackle size no longer receives jack size restriction, can realize prestressing force carbon fiber plate tensioning system's frivolousization.
Drawings
FIG. 1 is a schematic structural diagram of a conventional prestressed carbon fiber plate tensioning system;
FIG. 2 is a schematic structural view of a V-shaped external tensioning device according to an embodiment of the present disclosure;
FIG. 3 is a schematic diagram of a moment arm structure according to an embodiment of the present application;
FIG. 4 is a schematic view of another moment arm structure in an embodiment of the present application;
FIG. 5 is a schematic view of a feedthrough hole in one embodiment of the present application;
in the figure: 100. a counter-force block; 200. tensioning the end anchor frame; 300. stretching the screw; 400. a wide force arm; 410. a hollow-out section; 500. a narrow force arm; 510. an installation part; 600. a jack; 700. a screw rod; 800. a core piercing block; 810. a feed-through hole; 820. and clamping the protrusion.
Detailed Description
This section will describe in detail the embodiments of the present invention, preferred embodiments of the present invention are shown in the attached drawings, which are used to supplement the description of the text part of the specification with figures, so that one can intuitively and vividly understand each technical feature and the whole technical solution of the present invention, but they cannot be understood as the limitation of the protection scope of the present invention.
In the description of the present invention, it should be understood that the orientation or positional relationship indicated with respect to the orientation description, such as up, down, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, a plurality of meanings are one or more, a plurality of meanings are two or more, and the terms greater than, smaller than, exceeding, etc. are understood as excluding the number, and the terms greater than, lower than, within, etc. are understood as including the number.
In the description of the present invention, unless there is an explicit limitation, the words such as setting, installation, connection, etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in combination with the specific contents of the technical solution.
In the technical field of carbon fiber plate tensioning, a prestressed carbon fiber plate tensioning system is tensioned by adopting a jack more, and generally comprises a tensioning end and an anchoring end.
Referring to fig. 1, the stretching end includes a stretching end stopper, a stretching end anchor frame parallel to the reaction block, an anchor block disposed in the stretching end anchor frame and capable of moving relative to the stretching end anchor frame, a stretching screw, and a jack, one end of the stretching screw is fixedly connected to the anchor block, the other end of the stretching screw passes through the stretching end anchor frame and is fixedly connected to the stretching end stopper, the jack is generally a center-penetrating jack and is disposed between the stretching end stopper and the stretching end anchor frame, and an output end of the jack abuts against the stretching end stopper.
The anchoring end comprises an anchoring end anchor frame and an anchor block (not shown in the figure) fixed in the anchoring end anchor frame.
And two ends of the carbon fiber plate are respectively and fixedly connected with an anchor block at the side of the anchor frame of the tensioning end and an anchor block at the side of the anchor frame of the anchoring end.
During the use, stretch-draw end and anchor end are generally fixed to be set up in treating the surface of reinforcement member, through jack at stretch-draw end dog output effort, drive the anchor block through stretch-draw end dog, stretch-draw screw rod in proper order and remove in stretch-draw end anchor frame, accomplish the stretch-draw of carbon fiber plate.
The inventors have realized in a number of engineering practical applications that: because the general size of jack is great, receives the jack size influence, the ground tackle size is also great, not only causes the waste of material and the inconvenience of site operation, still influences the popularization of prestressing force carbon fiber plate stretch-draw system. Therefore, the inventor of the application provides an outer tensioning equipment of V type body, through optimizing prestressing force carbon fiber plate tensioning system's overall structure, realizes the external stretch-draw of carbon fiber plate for prestressing force carbon fiber plate tensioning system's ground tackle size can not receive the influence of jack size, thereby can realize prestressing force carbon fiber plate tensioning system's frivolousization.
The invention will be further described with reference to specific embodiments and drawings.
Example 1
As shown in fig. 2, this embodiment provides an outer tensioning device of V type body, is applied to prestressing force carbon fiber plate tensioning system, prestressing force carbon fiber plate tensioning system is including stretching the end, stretch out the end including counter-force piece 100, with counter-force piece 100 parallel arrangement's stretch out end anchor frame 200, set up in stretch out end anchor frame 200 and can for stretch out the anchor block that end anchor frame 200 removed and stretch-draw screw rod 300, stretch-draw screw rod 300 one end fixed connection anchor block, the other end pass stretch out and stretch out end anchor frame 200 and stretch out end dog fixed connection, external tensioning device includes:
one of the two force arms is a wide force arm 400, and the other force arm is a narrow force arm 500; one end of each of the two force arms is pivoted with each other, and the other end of each of the two force arms is movably connected with the counter-force block 100 and the tensioning end anchor frame 200 through bearings respectively;
the jack 600 is arranged between the two force arms and is respectively and fixedly connected with the two force arms through bearings; the jack 600 can drive two force arms to rotate around the pivot shaft of the jack and the tension shaft, so that the jack 600 can drive the anchor block to move in the tensioning end anchor frame 200 through the reaction block 100 and the tensioning screw 300 in sequence by means of the two force arms, and tensioning of the carbon fiber plate is completed.
In the optimized prestressed carbon fiber plate tensioning system, the position of the jack 600 is not limited to the tensioning end side any more, and the external tensioning of the carbon fiber plate can be realized as well, so that the size of the anchorage device of the prestressed carbon fiber plate tensioning system can not be influenced by the size of the jack 600, the size of the anchorage device is not limited by the size of the jack 600 any more, and the lightening and thinning of the prestressed carbon fiber plate tensioning system can be realized.
Example 2
Essentially the same as in example 1. The construction and connection of the arm, jack 600 are specifically described in this embodiment: referring to fig. 3 to 5, at least one of the two arms has a hollow portion or an installation portion, and more specifically, the wide arm 400 has a hollow portion 410, and the narrow arm 500 has an installation portion 510; the connecting line direction between the hollow part 410 of the wide-width force arm 400 and the mounting part 510 of the narrow-width force arm 500 is parallel to the tensioning direction of the carbon fiber plate, so that the force applying direction of the jack 600 after the jack 600 is mounted is parallel to the tensioning direction of the carbon fiber plate.
The in vitro tensioning device further comprises: the core penetrating block 800 is fixedly arranged at the hollow-out part or the mounting part of the two force arms, and the middle part of the core penetrating block is provided with a core penetrating hole 810; the jack 600 comprises a screw rod 700 penetrating the jack 600, and two ends of the screw rod 700 penetrate through the through hole 810 to be fixedly connected with the two force arms through the through block 800.
The piercing block 800 further comprises: clamping protrusions 820 arranged on two opposite side surfaces of the core penetrating block 800; the inner side wall of the hollow part or the installation part is provided with opposite positioning holes, and the penetrating block 800 is fixedly connected with the force arm through a clamping protrusion 820 embedded in the positioning holes. On one hand, the penetrating block 800 in this embodiment plays a role of fixing the jack 600, and can limit the jack 600 in a space between two force arms, thereby further reducing the volume and the lightness of the prestressed carbon fiber plate tensioning system structure as much as possible; on the other hand, the connection mode between the piercing block 800 and the two force arms and the jack 600 can ensure the stability of the structure of the jack 600 during operation as far as possible without additionally adding other structures.
The method for stretching by using the stretching device comprises the following steps:
when tensioning is carried out, the wide-width force arm and the narrow-width force arm are fixed with the tensioning end anchor frame and the counter-force block;
sequentially penetrating a screw rod through the penetrating block on one force arm, the jack and the penetrating block on the other force arm, and controlling the starting position of the jack by adjusting the distance between the anchor frame at the tensioning end and the counterforce block;
and starting the jack for tensioning, and extruding the counter-force block to pull the anchor bolt to move under the transmission action of the wide force arm and the narrow force arm so as to realize the tensioning work of the carbon fiber plate.
The utility model discloses the example is only right the preferred embodiment of the utility model describes, and is not right the utility model discloses think about and the scope is injectd, not deviating from the utility model discloses under the prerequisite of design thought, the field engineering technical personnel are right the utility model discloses a various deformation and improvement that technical scheme made all should fall into the protection scope of the utility model.
Claims (5)
1. The utility model provides an outer tensioning equipment of V type body is applied to prestressing force carbon fiber plate tensioning system, prestressing force carbon fiber plate tensioning system is including stretching out the end, stretch out the end including the counter-force piece, with counter-force piece parallel arrangement stretch out the end anchor frame, set up in stretch out the end anchor frame and can for stretch out the anchor block that the end anchor frame removed and stretch-draw screw rod, stretch-draw screw rod one end fixed connection anchor block, the other end pass stretch out and draw end anchor frame and stretch out and draw end dog fixed connection, its characterized in that: the in vitro tensioning device comprises:
one end of each of the two force arms is pivoted with each other, and the other end of each of the two force arms is movably connected with the counter-force block and the tensioning end anchor frame through bearings respectively;
the jack is arranged between the two force arms and is respectively and fixedly connected with the two force arms through bearings; the jack can drive two arms of force to rotate around the pivot shaft of the two, so that the jack can drive the anchor block to move in the tensioning end anchor frame sequentially through the counter-force block and the tensioning screw rod by means of the two arms of force, and tensioning of the carbon fiber plate is completed.
2. A V-type external tensioning device according to claim 1, wherein: at least one of the two force arms is provided with a hollow part or an installation part, and the connecting line direction between the hollow parts or the installation parts of the two force arms is parallel to the stretching direction of the carbon fiber plate.
3. A V-shaped body external tension device according to claim 2, wherein: the in vitro tensioning device further comprises:
the core penetrating block is fixedly arranged at the hollow parts or the mounting parts of the two force arms, and the middle part of the core penetrating block is provided with a core penetrating hole;
the jack comprises a screw rod penetrating through the jack, and two ends of the screw rod penetrate through the penetrating hole to be connected with the two force arms through the penetrating block.
4. A V-type external tensioning device according to claim 3, wherein: the piercing block further comprises:
the clamping protrusions are arranged on two opposite side surfaces of the core penetrating block;
the hollow part or the installation part is provided with opposite positioning holes, and the penetrating block is fixedly connected with the force arm through a clamping protrusion embedded in the positioning holes.
5. A V-type external tensioning device according to claim 3, wherein: one of the two force arms is a wide force arm, and the other force arm is a narrow force arm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222967373.9U CN218815407U (en) | 2022-11-08 | 2022-11-08 | V-shaped external tensioning device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222967373.9U CN218815407U (en) | 2022-11-08 | 2022-11-08 | V-shaped external tensioning device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218815407U true CN218815407U (en) | 2023-04-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222967373.9U Active CN218815407U (en) | 2022-11-08 | 2022-11-08 | V-shaped external tensioning device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218815407U (en) |
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