Core-through jack convenient for observing tensile length

Abstract

The utility model discloses a cross-core jack convenient to observe tensile length, which comprises a jack main body, a tensioning end, a jacking end, a plurality of hoisting fixing plates and an observation mechanism, the tensioning end is arranged at the left end of the jack main body, the jacking end is arranged at the right end of the jack main body, and the plurality of hoisting fixing plates are arranged on the jack main body. The lifting fixing plates are oppositely arranged on the top of the jack body left and right, and the observation mechanism is arranged at the front end of the jack body. The observation mechanism comprises an observation box, a visual window, a plurality of scales, a partition plate, an upper strip groove, an upper strip opening, a lower strip groove, a lower strip opening, a plurality of limiting strips, a traction block, a fixing block, a plurality of buckling blocks and a block groove. According to the scheme, the data acquisition precision is greatly improved.

Description

Technical Field

[0001] This utility model relates to the field of jack technology, specifically a through-hole jack that facilitates observation of the stretching length. Background Technology

[0002] The through-hole jack is a type of jack mainly used for overall tensioning of anchor groups. With its simple operation and reliable performance, the through-hole jack, together with prestressed anchorages and tensioning equipment, plays an important role in prestressed construction of bridges, buildings and other structures.

[0003] When the two ends of the existing through-type jack extend outwards, the staff cannot judge the distance of the extension. Therefore, the staff mostly measure it manually, which cannot obtain accurate values ​​to meet the calculation requirements.

[0004] Therefore, a solution is needed. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] To address the shortcomings of existing technologies, this invention provides a through-hole jack that facilitates observation of the stretching length, thereby solving the problems mentioned in the background section.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, this utility model provides the following technical solution:

[0009] A through-hole type jack for easy observation of the stretching length includes a jack body, a tensioning end, a pressing end, several lifting and fixing plates, and an observation mechanism. The tensioning end is located at the left end of the jack body, the pressing end is located at the right end of the jack body, the several lifting and fixing plates are arranged opposite each other on the top of the jack body, and the observation mechanism is located at the front end of the jack body.

[0010] The observation mechanism includes an observation box, a viewing window, several scales, a partition, an upper groove, an upper opening, a lower groove, a lower opening, several limiting strips, pulling blocks, fixing blocks, several fastening blocks, and block grooves. The observation box is horizontally positioned at the front end of the jack body. The viewing window is positioned at the front end of the observation box. Several scales are vertically opposed on the front surface of the observation box and are located at the upper and lower ends of the viewing window, respectively. The partition is horizontally positioned in the middle of the observation box. The upper and lower grooves are respectively positioned at the upper and lower ends of the partition. The upper opening and lower opening are respectively positioned at the right end of the upper groove and the left end of the lower groove. Several limiting strips are respectively positioned inside the upper and lower grooves and extend outward from the upper and lower openings, respectively. The pulling block is positioned at the outer end of each limiting strip. The fixing block is positioned on each pulling block. Several fastening blocks are respectively positioned on the tensioning end and the pressing end. The block groove is positioned inside each fastening block.

[0011] Preferably, the observation box has a fan-shaped structure, the viewing window has a hollow fan-shaped structure, the limiting strip has a fan-shaped strip structure, and the pulling block has a fan-shaped structure.

[0012] Preferably, the fixing block has a fan-shaped structure, with the left fixing block located to the left of the rear end of the left traction block, and the right fixing block located to the right of the rear end of the right traction block. The thickness of the fixing block is equal to half of the traction block, and the limiting strip, fixing block, and traction block are integrally formed.

[0013] Preferably, the plurality of fasteners are arranged in a fan shape and located to the left of the front end of the tensioning end and to the left of the right end of the top pressing end.

[0014] Preferably, the opening of the left-side block groove points to the left, and the opening of the right-side block groove points to the right, and the volume of the block groove is smaller than the volume of the fixed block.

[0015] (III) Beneficial Effects

[0016] This invention provides a through-hole jack that facilitates observation of the stretching length. It offers the following advantages:

[0017] 1. This scheme is designed with an observation mechanism that is convenient for staff to measure. The complementarity between the fixed block and the block slot allows the tensioning end and the top pressure end to pull the fixed block through the buckle, thereby pulling the limit strip out of the observation box. This process can be observed through the viewing window and its movement distance can be calculated by the scale, which greatly increases the accuracy of data acquisition.

[0018] 2. In addition, the limit strip can be removed from the observation box at any time, which is simple to operate and easy to store. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the right end structure of the observation box of this utility model;

[0021] Figure 3 This is a schematic diagram of the left end structure of the observation box of this utility model;

[0022] Figure 4 This is a schematic diagram of the limiting strip and other structures on the right side of this utility model;

[0023] Figure 5 This is a schematic diagram of the limiting strip and other structures on the left side of this utility model.

[0024] In the diagram, 1-jack body; 2-tensioning end; 3-top pressure end; 4-several lifting and fixing plates; 5-observation mechanism; 51-observation box; 52-viewing window; 53-several scales; 54-partition; 55-upper groove; 56-upper opening; 57-lower groove; 58-lower opening; 59-several limiting strips; 510-tensioning block; 511-fixing block; 512-several fastening blocks; 513-block groove. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Please see Figure 1-5 The present invention provides a technical solution to achieve this: including a jack body 1, a tensioning end 2, a pressing end 3, a plurality of lifting and fixing plates 4 and an observation mechanism 5. The tensioning end 2 is located at the left end of the jack body 1, the pressing end 3 is located at the right end of the jack body 1, the plurality of lifting and fixing plates 4 are arranged opposite each other on the top of the jack body 1, and the observation mechanism 5 is located at the front end of the jack body 1.

[0027] The core observation mechanism 5 includes an observation box 51, a viewing window 52, ​​several scales 53, a partition 54, an upper groove 55, an upper opening 56, a lower groove 57, a lower opening 58, several limiting strips 59, a pulling block 510, a fixing block 511, several fastening blocks 512, and a block groove 513. The observation box 51 is horizontally positioned at the front end of the jack body 1. The viewing window 52 is positioned at the front end of the observation box 51. Several scales 53 are vertically opposed on the front surface of the observation box 51 and are located above and below the viewing window 52, ​​respectively. The partition 54 is horizontally positioned in the middle inside the observation box 51. Position: The upper groove 55 and the lower groove 57 are respectively located at the upper and lower ends of the partition plate 54; the upper opening 56 and the lower opening 58 are respectively located at the right end of the upper groove 55 and the left end of the lower groove 57; several limiting strips 59 are respectively located inside the upper groove 55 and the lower groove 57 and extend outwards to the upper opening 56 and the lower opening 58; the pulling block 510 is located at the outer end of each limiting strip 59; the fixing block 511 is located on each pulling block 510; several fastening blocks 512 are respectively located on the tensioning end 2 and the top pressing end 3; and the block groove 513 is located inside each fastening block 512.

[0028] Specifically, the observation box 51 has a fan-shaped structure, the viewing window 52 has a hollow fan-shaped structure, the limiting strip 59 has a fan-shaped strip structure, and the pulling block 510 has a fan-shaped structure.

[0029] The fixing block 511 has a fan-shaped structure. The left fixing block 511 is located to the left of the rear end of the left tension block 510, and the right fixing block 511 is located to the right of the rear end of the right tension block 510. The thickness of the fixing block 511 is equal to half the thickness of the tension block 510. The limiting strip 59, the fixing block 511, and the tension block 510 are integrally formed.

[0030] Several fasteners 512 are arranged in a fan shape and are located to the left of the front end of the tensioning end 2 and to the left of the right end of the top pressing end 3. The opening of the left block groove 513 points to the left, and the opening of the right block groove 513 points to the right. The volume of the block groove 513 is smaller than the volume of the fixed block 511.

[0031] This design incorporates an observation mechanism 5 for convenient measurement by staff. The complementary relationship between the fixed block 511 and the slot 513 allows the tensioning end 2 and the top-pressure end 3 to pull the fixed block 511 via the latch block 512, thereby pulling the limiting strip 59 out of the observation box 51. This process can be observed through the viewing window 52, ​​and its movement distance can be calculated using the scale 53, significantly increasing the accuracy of data acquisition. Furthermore, the limiting strip 59 can be easily removed from the observation box 51, simplifying operation and facilitating storage.

[0032] Working principle: During use, the tensioning end 2 and the pressure end 3 apply force to the steel strand through external anchoring equipment. Both the tensioning end 2 and the pressure end 3 move away from the jack body 1 to tension and pressure the steel strand. Simultaneously, each fastening block 512 drives each fixing block 511, which in turn drives each pulling block 510 and the limiting strip 59 to move together. The inner end of the limiting strip 59 is thus displayed in the viewing window 52 for recording by staff. When not in use, the limiting strip 59 can be directly removed from the observation box 51 for easy storage.

[0033] The components of this utility model are: 1-jack body; 2-tensioning end; 3-pressure end; 4-several lifting and fixing plates; 5-observation mechanism; 51-observation box; 52-viewing window; 53-several scales; 54-partition; 55-upper groove; 56-upper opening; 57-lower groove; 58-lower opening; 59-several limiting strips; 510-traction block; 511-fixing block; 512-several fastening blocks; 513-block groove. These components are all general standard parts or components known to those skilled in the art. Their structure and principles can be learned by those skilled in the art through technical manuals or conventional experimental methods. The problem solved by this utility model is that when the two ends of the existing through-hole jack extend outward, the operator cannot judge the extension distance. Therefore, the operator mostly measures manually, which cannot obtain accurate values ​​to meet calculation requirements. This utility model significantly increases the accuracy of data acquisition.

[0034] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0035] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A through-hole type jack for easy observation of the stretching length, characterized in that: It includes a jack body (1), a tensioning end (2), a pressing end (3), several lifting and fixing plates (4) and an observation mechanism (5). The tensioning end (2) is located at the left end of the jack body (1), the pressing end (3) is located at the right end of the jack body (1), several lifting and fixing plates (4) are arranged opposite each other on the top of the jack body (1), and the observation mechanism (5) is located at the front end of the jack body (1). The observation mechanism (5) includes an observation box (51), a viewing window (52), several scales (53), a partition (54), an upper groove (55), an upper opening (56), a lower groove (57), a lower opening (58), several limiting strips (59), a pulling block (510), a fixing block (511), several fastening blocks (512), and a block groove (513). The observation box (51) is horizontally arranged at the front end of the jack body (1). The viewing window (52) is arranged at the front end of the observation box (51). Several scales (53) are arranged vertically opposite each other on the front end surface of the observation box (51) and are respectively located at the upper and lower ends of the viewing window (52). The partition (54) is horizontally arranged in the middle position inside the observation box (51). The upper groove (55) and the lower groove (57) are respectively disposed at the upper end and the lower end of the partition plate (54). The upper opening (56) and the lower opening (58) are respectively disposed at the right end of the upper groove (55) and the left end of the lower groove (57). A plurality of limiting strips (59) are respectively disposed inside the upper groove (55) and the lower groove (57) and extend outward from the upper opening (56) and the lower opening (58). The pulling block (510) is disposed at the outer end of each limiting strip (59). The fixing block (511) is disposed on each pulling block (510). A plurality of fastening blocks (512) are respectively disposed on the tensioning end (2) and the top pressing end (3). The block groove (513) is disposed inside each fastening block (512).

2. A through-hole jack for convenient observation of stretching length according to claim 1, characterized in that: The observation box (51) has a fan-shaped structure, the viewing window (52) has a hollow fan-shaped structure, the limiting strip (59) has a fan-shaped strip structure, and the pulling block (510) has a fan-shaped structure.

3. A through-hole jack for convenient observation of stretching length according to claim 2, characterized in that: The fixing block (511) has a fan-shaped structure. The left fixing block (511) is located to the left of the rear end of the left traction block (510), and the right fixing block (511) is located to the right of the rear end of the right traction block (510). The thickness of the fixing block (511) is equal to half of the traction block (510). The limiting strip (59), the fixing block (511) and the traction block (510) are integrally formed.

4. A through-hole jack for convenient observation of stretching length according to claim 1, characterized in that: Several of the fasteners (512) are arranged in a fan shape and are located to the left of the front end of the tensioning end (2) and to the left of the right end of the top pressing end (3).

5. A through-hole jack for convenient observation of stretching length according to claim 1, characterized in that: The opening of the left-side block groove (513) points to the left, and the opening of the right-side block groove (513) points to the right. The volume of the block groove (513) is smaller than the volume of the fixed block (511).

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