CN217033058U

CN217033058U - Jack calibration equipment

Info

Publication number: CN217033058U
Application number: CN202220484365.6U
Authority: CN
Inventors: 叶铮; 田磊; 高亚丽; 唐飞; 唐兴泉; 张学利
Original assignee: Shandong Luda Testing Apparatus Co ltd
Current assignee: Shandong Luda Testing Apparatus Co ltd
Priority date: 2022-03-08
Filing date: 2022-03-08
Publication date: 2022-07-22
Anticipated expiration: 2032-03-08

Abstract

The utility model relates to the technical field of jack test equipment, in particular to a jack calibration device, which comprises a fixed seat, a pressure measuring device arranged in the fixed seat in a sliding way, and a height adjusting device, the fixing seat comprises a first fixing plate and a second fixing plate which are transversely arranged, connecting shafts are arranged at the four corner ends of the first fixing plate and the second fixing plate, the pressure measuring device comprises a pressure plate which is arranged on the connecting shaft in a sliding way, a pressure sensor is arranged on one side of the pressure plate, which is opposite to the second fixing plate, a screw rod is arranged at the other side of the pressure plate, a through hole for the screw rod to pass through is arranged on the first fixing plate, the device is simple in operation, rapid and convenient in detection, and has the advantages of reducing detection cost for construction units and the like.

Description

Jack checking device

Technical Field

The utility model relates to the technical field of jack test equipment, in particular to a jack calibration device.

Background

The jack is mainly used for controlling the bearing capacity of a construction engineering pile foundation and the force value of the prestress of an engineering mechanism, and along with the wide application of the prestress technology in the fields of bridges and building construction, the problems of force value control, measurement accuracy, safety and the like of the jack are paid more and more attention. According to the specification of TB/T-3043 + 2005 standard of the Ministry of railways, a bridge prestress tensioning device needs to be checked once a month, because the jack and an oil pumping metering department have the defects of heavy detection and transportation, complex metering, high metering cost and the like, a jack checking device which is simple to operate and rapid in detection is needed, the existing jack checking device is a vertical portal frame, the frames are mutually fixed and cannot be adjusted, the jack checking device is not suitable for the jack with the height exceeding, the jack is inconvenient to move due to height limitation, the jack checking device is poor in stability, when the jack checking device is used, the jack is required to be moved into the checking device by using a manual carrying or driving a forklift, time and labor are wasted, and unsafe factors exist.

SUMMERY OF THE UTILITY MODEL

Aiming at the problems, the utility model provides a jack calibration device, which solves the problems that the existing device is not suitable for testing jacks with different sizes, is inconvenient to move and has poor stability.

The technical scheme adopted by the utility model for solving the technical problem is as follows: jack calibration equipment sets up the pressure measurement device in the fixing base including fixing base and slip, still includes high adjusting device, the fixing base is including horizontal first fixed plate and the second fixed plate that sets up, the quadrangle end of first fixed plate and second fixed plate all is equipped with the connecting axle, the pressure measurement device sets up the clamp plate at the connecting epaxial including sliding, the clamp plate is equipped with pressure sensor with the relative one side of second fixed plate, the clamp plate opposite side is equipped with the screw rod, be equipped with on the first fixed plate and be used for making the perforation that the screw rod passed, be equipped with the nut on the outer screw rod of perforation, be equipped with a plurality of spacing grooves on the connecting axle, the spacing inslot is equipped with the locating part.

Preferably, the limiting part comprises a retaining ring consisting of two semicircles, and a fixing ring is arranged outside the retaining ring.

Preferably, the height adjusting device comprises a plurality of hand winches transversely and uniformly arranged between the second fixing plate and the pressing plate.

Preferably, pulleys are arranged on two sides of the pressing plate, and sliding rails matched with the pulleys are arranged on two sides of the first fixing plate and two sides of the second fixing plate.

Preferably, the fixing ring is provided with a fixing hole with internal threads.

Preferably, the outer diameter of the baffle ring is larger than that of the connecting shaft.

Preferably, the pressure measuring device is externally connected with a digital display screen.

As optimization, the first fixing plate and the second fixing plate are both provided with triangular support frames.

The beneficial effects of the utility model are: the jack calibration device provided by the utility model is integrally horizontally arranged, and when the jack calibration device is used, a jack can be easily placed into the device only through a lifting appliance, so that the jack calibration device is convenient to place; the pressing plate is arranged on the connecting shaft in a sliding mode, so that the distance between the pressing plate and the first fixing plate can be adjusted, and the jacks with different sizes can be conveniently tested; the combination of the pressure sensor and the digital display screen enables the detection data to be available quickly, and the intellectualization of the device is improved; the use of the limiting groove and the limiting part enables the stability of the pressure plate to be higher during testing, so that the detection data is more accurate and error-free; the height adjusting device is convenient for jacks of different sizes to correspond to the pressure sensor, and the jack can be safely and labor-saving adjusted in height through the hand winch. The device is simple to operate, is rapid and convenient to detect, and has the advantages of reducing the detection cost for construction units and the like.

Drawings

FIG. 1 is a schematic view of the structure of the present invention;

fig. 2 is a schematic structural diagram of a limiting element according to the present invention.

Wherein: 1. the device comprises a first fixing plate, a second fixing plate, a connecting shaft, a pressing plate, a pressure sensor, a screw rod, a limiting groove, a retaining ring 8, a retaining ring 9, a fixing ring 10, a pulley 11, a sliding rail 12, a fixing hole 13 and a triangular support frame 5.

Detailed Description

It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the disclosure. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.

For convenience of description, the words "up", "down", "left" and "right" in the present invention, if any, merely indicate that the directions of movement are consistent with those of the drawings, and are not structural limitations, but merely facilitate the description of the utility model and simplify the description, rather than indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the utility model.

As shown in fig. 1-2, the jack calibration device comprises a fixed seat, a pressure measuring device slidably arranged in the fixed seat, and a height adjusting device, wherein the pressure measuring device is externally connected with a digital display screen, the height adjusting device comprises a plurality of hand winches transversely and uniformly arranged between the second fixed plate 2 and the pressing plate 4, and the number of the hand winches is at least 2; the fixing seat comprises a first fixing plate 1 and a second fixing plate 2 which are transversely arranged, triangular support frames 13 are arranged on the first fixing plate 1 and the second fixing plate 2, and the triangular support frames 13 are arranged on two sides of the first fixing plate 1 and the second fixing plate 2 and used for increasing the contact area with the ground and enhancing the overall stability of the device; the four corner ends of the first fixing plate 1 and the second fixing plate 2 are respectively provided with a connecting shaft 3, the pressure measuring device comprises a pressing plate 4 which is arranged on the connecting shafts 3 in a sliding mode, a pressure sensor 5 is arranged in the center of one side, opposite to the second fixing plate 2, of the pressing plate 4, a screw rod 6 is arranged on the other side of the pressing plate 4, a through hole for the screw rod 6 to penetrate through is formed in the first fixing plate 1, a nut is arranged on the screw rod 6 outside the through hole, the outer diameter of the nut is larger than the outer diameter of the through hole, and the pressing plate 4 is fixed through screwing of the screw rod 6; pulleys 10 are arranged on two sides of the pressing plate 4, and sliding rails 11 matched with the pulleys 10 are arranged on two sides of the first fixing plate 1 and the second fixing plate 2, so that the pressing plate 4 is more portable when moving; the connecting shaft 3 is provided with a plurality of limiting grooves 7, and the limiting grooves 7 at different positions are suitable for jacks with different sizes; limiting pieces are arranged in the limiting grooves 7, the number of the limiting pieces is at least 4, and the limiting pieces are respectively used on the limiting grooves 7 of the four connecting shafts 3 at the upper part and the lower part; the locating part includes the fender ring 8 of constituteing by two semicircles, the external diameter that keeps off ring 8 is greater than the external diameter of connecting axle 3, keep off 8 overcoat of ring and be equipped with solid fixed ring 9, gu be equipped with the fixed orifices 12 of taking the internal thread on fixed ring 9, through mounting bolt in fixed orifices 12, make solid fixed ring 9 further fixed to keeping off ring 8, prevent that clamp plate 4 from squinting backward under the jacking force of jack, cause the deviation on the test result.

Fix the shell of hand winch on the slide rail 11 of first fixed

plate

1 and 2 one sides of second fixed plate through mounting such as bolt, wave the hand (hold), the pulling lifting hook makes wire rope pull out, walk around two connecting axles 3 on upper portion, fix the lifting hook on the slide rail 11 of first fixed

plate

1 and 2 opposite sides of second fixed plate, can set up the mouth of hanging that the lifting hook of being convenient for hung on the slide rail 11, during the use, with the jack top on the wire rope between four connecting axles 3, through the length of waveing hand (hold) control wire rope, reach the height that realizes adjusting the jack.

The working principle is as follows: when the jack calibration device provided by the utility model is used, a tested jack is placed on a steel wire rope among four connecting columns through a lifting appliance, a hand winch is used for centering the center of the output end of the jack with a pressure sensor 5, a nut on a screw 6 is screwed, the nut is screwed to fix a pressure plate 4 after the pressure plate 4 props against the jack, a limiting part is inserted into a limiting groove 7 on the outer side of the pressure plate 4, and is fixed in a fixing hole 12 of a fixing ring 9 through a bolt, at the moment, the jack is started, the pressure sensor 5 receives the jacking force of the jack, and information is transmitted to a digital display screen for display through testing.

The above embodiments are only specific examples of the present invention, and the protection scope of the present invention includes but is not limited to the product forms and styles of the above embodiments, and any suitable changes or modifications made by those skilled in the art according to the claims of the present invention shall fall within the protection scope of the present invention.

Claims

1. Jack calibration equipment sets up the pressure measurement device in the fixing base, its characterized in that including fixing base and slip: still include high adjusting device, the fixing base is including horizontal first fixed plate and the second fixed plate that sets up, the four corners end of first fixed plate and second fixed plate all is equipped with the connecting axle, the pressure measurement device is including sliding the clamp plate that sets up on the connecting axle, the clamp plate is equipped with pressure sensor with the relative one side of second fixed plate, the clamp plate opposite side is equipped with the screw rod, be equipped with on the first fixed plate and be used for making the perforation that the screw rod passed, be equipped with the nut on the outer screw rod of perforation, be equipped with a plurality of spacing grooves on the connecting axle, the spacing inslot is equipped with the locating part.

2. The jack verification device of claim 1, wherein: the locating part includes the fender ring of constituteing by two semicircles, keep off the ring and be equipped with solid fixed ring outward.

3. A jack verification device as claimed in claim 1, wherein: the height adjusting device comprises a plurality of hand winches which are transversely and uniformly arranged between the second fixing plate and the pressing plate.

4. The jack verification device of claim 1, wherein: the clamp plate both sides all are equipped with the pulley, the both sides of first fixed plate and second fixed plate all be equipped with pulley complex slide rail.

5. A jack verification device as claimed in claim 2, wherein: and the fixing ring is provided with a fixing hole with internal threads.

6. A jack verification device as claimed in claim 5, wherein: the outer diameter of the baffle ring is larger than that of the connecting shaft.

7. The jack verification device of claim 1, wherein: the pressure measuring device is externally connected with a digital display screen.

8. A jack verification device as claimed in claim 6, wherein: and the first fixing plate and the second fixing plate are both provided with a triangular support frame.