A fixing device and adjusting method for organic glass balls in liquid

Abstract

The application provides a fixing device for organic glass balls in liquid, wherein the organic glass balls are placed in liquid in a space frame structure, and the upper and lower parts of the equator of the organic glass balls are sleeved with annular rope pockets; the annular rope pockets of the upper and lower parts of the equator of the organic glass balls are connected with fiber rope length adjusting devices through the lower and upper fiber ropes respectively, and the fiber rope length adjusting devices are installed on the space frame structure. The application also provides an adjusting method for the fixing device for organic glass balls in liquid. The annular rope pockets arranged on the upper and lower parts of the equator of the organic glass balls, in cooperation with the lower and upper fiber ropes, can effectively fix the organic glass balls; when the organic glass balls float or sink, and the position of the organic glass balls changes, the fiber rope length adjusting devices can adjust the lengths of the upper and lower fiber ropes to ensure that the organic glass balls are always in the designed position.

Description

Technical Field

[0001] This invention relates to the field of high-energy physics detector technology, and in particular to a device for fixing and adjusting an organic glass sphere in a liquid. Background Technology

[0002] Neutrinos are characterized by being uncharged, having extremely small mass, minimal interaction, and traveling at near-light speed. They traverse the universe in almost straight lines, passing through any matter, earning them the nickname "invisible beings" of the cosmos. Neutrino detectors typically use large-diameter spheres filled with water or liquid scintillators as target materials. When neutrinos pass through these liquids, nuclear reactions occur, producing charged particles that emit blue pulses of light, which are then captured and studied by optical detectors. It is important to emphasize that plexiglass, with its high light transmittance and low background noise, is generally used to fabricate spheres as neutrino reaction containers.

[0003] To enable multiphase detection technology with interchangeable target materials and shielding media, the space between the stainless steel water tank and the plexiglass sphere can be filled with pure water, mineral oil, or even non-luminescent quenched liquid scintillators—substances used to shield against radioactive background—depending on the specific physical requirements. The plexiglass sphere itself can be filled with water, liquid scintillators, or water-doped materials. Because the liquids inside and outside the plexiglass sphere are interchangeable, the resulting density difference causes the sphere to float or sink. Therefore, high-performance fiber ropes with low background content are required to secure the plexiglass sphere (metallic materials have high background content, which affects detection accuracy and cannot be used to secure plexiglass spheres). The following aspects should be considered when fixing the acrylic sphere: 1) Acrylic glass is a polymer material with significant creep behavior. The material exhibits obvious differences under short-term and long-term stress. The stress performance between the two materials needs to be considered when fixing the acrylic sphere with fiber rope; 2) Minimize the dense obstruction of the acrylic sphere by the fiber rope to improve detection accuracy; 3) The tensile modulus of the fiber rope is low, and the deformation under stress is large. When the liquid inside and outside the acrylic sphere changes, the density inside and outside the acrylic sphere will be different, and the buoyancy of the acrylic sphere will change. At this time, the elongation of the fiber rope will change, causing the acrylic sphere to float or sink, and thus the position of the acrylic sphere will change. The length of the fiber rope should be adjusted at any time to ensure that the acrylic sphere is always in the designed position. Summary of the Invention

[0004] To address the aforementioned problems, this invention aims to provide a fixing device and adjustment method for an acrylic sphere in a liquid. By setting circumferential rope pockets at the upper and lower parts of the acrylic sphere's equator, and cooperating with pull-down and pull-up fiber ropes, the acrylic sphere can be effectively fixed. When the acrylic sphere floats or sinks, causing its position to change, the length adjustment device of the fiber ropes can be used to adjust the length of the pull-up and pull-down fiber ropes to ensure that the acrylic sphere is always in the designed position.

[0005] To achieve the above objectives, the technical solution of the present invention is implemented as follows:

[0006] An acrylic sphere fixing device in a liquid includes a spatial frame structure, a circumferential rope pocket, an acrylic sphere structure, and a fiber rope length adjustment device. The acrylic sphere is placed in the liquid within the spatial frame structure. Circumferential rope pockets are fitted at both the upper and lower equator parts of the acrylic sphere. The circumferential rope pockets at the upper and lower equator parts of the acrylic sphere are respectively connected to the fiber rope length adjustment device via a pull-down fiber rope and a pull-up fiber rope. The fiber rope length adjustment device is installed on the spatial frame structure.

[0007] Furthermore, the spatial frame structure is a three-dimensional frame structure with a trapezoidal cross-section formed by welding frame columns, upper frame beams, lower frame beams, and diagonal braces. Stainless steel wall panels are fixed on the inner wall of the three-dimensional frame structure to form a sealed space for placing liquid. The three-dimensional frame structure is placed inside the rock cave entrance.

[0008] Furthermore, the circumferential rope pocket includes a small circumferential rope pocket and a large circumferential rope pocket. The upper and lower parts of the equator of the plexiglass ball are respectively fitted with a small circumferential rope pocket and a large circumferential rope pocket. The diameter formed by the small circumferential rope pocket is smaller than the diameter formed by the large circumferential rope pocket, but both are smaller than the diameter of the plexiglass ball.

[0009] Furthermore, the small and large annular rope pockets at the upper part of the equator of the plexiglass sphere are respectively connected to the first and second pull-down fiber ropes. The first and second pull-down fiber ropes are respectively connected to the corresponding fixed pulley groups on the lower frame beam to change the direction of force and are connected to the corresponding fiber rope length adjustment device on the upper frame beam.

[0010] Furthermore, the small and large annular rope pockets at the lower part of the equator of the plexiglass sphere are respectively connected to the first and second pull-up fiber ropes, and the first and second pull-up fiber ropes are directly connected to the corresponding fiber rope length adjustment devices on the upper frame beam.

[0011] Furthermore, the fixed pulley assembly consists of two fixed pulleys mounted on the middle ring beam of the lower frame beam, wherein one of the inner fixed pulleys is located on the vertical projection edge of the plexiglass sphere, and the other fixed pulley is located on the outer side.

[0012] Furthermore, the first and second pull-up fiber ropes are arranged alternately with a circumferential interval of 30°, totaling 6 first and 6 second pull-up fiber ropes; the first and second pull-down fiber ropes are arranged alternately with a circumferential interval of 30°, totaling 6 first and 6 second pull-down fiber ropes; the first, second, first, and second pull-down fiber ropes are arranged alternately with a circumferential interval of 15°.

[0013] Furthermore, 24 fiber rope length adjustment devices are provided. The upper frame beam is provided with a large ring beam and a small ring beam. 12 fiber rope length adjustment devices are evenly spaced on the large ring beam and the small ring beam respectively. The upper frame beam, the large ring beam and the small ring beam are provided with holes at the positions where the fiber rope length adjustment devices are installed, allowing either the first or second fiber rope to be pulled up or the second fiber rope to be pulled down to pass through. The frame column is provided with a positioner for real-time monitoring of the position of the plexiglass sphere structure. The upper part of the plexiglass sphere structure is provided with a chimney-type conduit.

[0014] Furthermore, the fiber rope length adjustment device includes a first fixed pulley, a screw adjustment component, a pressure sensor, and a box-type diagonal brace. A pulley support plate is mounted on the pulley base of the first fixed pulley, and a pulley is mounted on the pulley support plate via a pulley shaft. The rear end of the pulley base is connected to the right diagonal brace plate of the box-type diagonal brace. The right diagonal brace plate is connected to a left diagonal brace plate via an upper end plate. A side plate is connected to one side of the right diagonal brace plate and the left diagonal brace plate, and the other side is reinforced by diagonal stiffening ribs and horizontal stiffening ribs. The upper end of the left diagonal brace plate is connected to the block of the screw adjustment component, and the lower end... The top and sides of the pulley support plate are connected by horizontal and vertical support plates; the block is threaded with a threaded rod, and the threaded rod on the upper part of the block passes through a pressure sensor, a gasket and a hexagonal long nut in sequence; the lower end of the threaded rod is connected to two clamping plates through an end plate, and a sleeve is rotatably connected between the two clamping plates by a pin. The lower part of the sleeve has an opening that allows the fiber rope to pass through, and there are circular baffles on both sides of the opening. The pin is connected to one end of either the first or second pull-up fiber rope or the first or second pull-down fiber rope through the opening of the sleeve.

[0015] To achieve the above objectives, the present invention also provides an adjustment method for the above-described acrylic sphere fixing device in a liquid, comprising the following steps:

[0016] S1: First, place the acrylic sphere structure within the space frame structure. Then, erect scaffolding below the acrylic sphere structure to support it. Install a large circular rope pocket at the lower equator of the acrylic sphere. Secure the lower end of the upward-pulling fiber rope to the large circular rope pocket. The upper end of the upward-pulling fiber rope has an eyelet, which is fitted onto the pin on the sleeve in the fiber rope length adjustment device. Install the small circular rope pocket at the lower equator of the acrylic sphere, the large circular rope pocket and the small circular rope pocket at the upper equator, and the corresponding fiber ropes in this manner. The downward-pulling fiber ropes one and two need to pass through a fixed pulley system fixed to the central ring beam to change the direction of force.

[0017] S2: First, fine-tune the hexagonal long nut in the fiber rope length adjustment device fixed on the small ring beam so that the upper fiber rope one and the upper fiber rope two are in a taut state; then fine-tune the hexagonal long nut in the fiber rope length adjustment device fixed on the large ring beam so that the lower fiber rope one and the lower fiber rope two are in a taut state; remove the scaffolding under the plexiglass ball structure.

[0018] S3: According to the requirements of the exploration mission, liquids of different densities are simultaneously injected into the interior of the plexiglass sphere structure and between the plexiglass sphere structure and the space frame structure to ensure that the liquid height inside and outside the plexiglass sphere structure is at the same level as much as possible, so as to minimize the force on the plexiglass sphere structure when it floats or sinks.

[0019] S4: As the liquid is poured in, the buoyancy or sinking force on the plexiglass sphere structure gradually increases, and the deformation of the fiber rope increases, causing the structural position of the plexiglass sphere structure to change. Therefore, during the liquid pouring process, the position of the plexiglass sphere structure is monitored in real time by a positioner fixed on the frame column, and the force on the fiber rope is monitored in real time by a pressure sensor fixed in the fiber rope length adjustment device to ensure that the plexiglass sphere structure is in the designed position. During the operation of the detector, the force and length of the fiber rope can also be adjusted at any time to eliminate the creep effect of the fiber rope.

[0020] Beneficial effects: This invention provides a ring-shaped rope pocket at the upper and lower parts of the equator of the acrylic glass ball, which, together with the pull-down and pull-up fiber ropes, can effectively fix the acrylic glass ball. When the acrylic glass ball floats or sinks, causing its position to change, the length of the pull-up and pull-down fiber ropes can be adjusted by the fiber rope length adjustment device to ensure that the acrylic glass ball is always in the designed position. Attached Figure Description

[0021] The accompanying drawings, which form part of this invention, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an undue limitation of the invention. In the drawings:

[0022] Figure 1This is a schematic diagram of the acrylic glass ball fixing device in liquid according to an embodiment of the present invention;

[0023] Figure 2 This is a top view of the spatial frame structure of the acrylic ball fixing device in liquid according to an embodiment of the present invention (Note: the black solid square in the figure represents the fixing position of the fiber rope length adjustment device);

[0024] Figure 3 This is a schematic diagram of the bottom of the spatial frame structure of the organic glass ball fixing device in liquid according to an embodiment of the present invention (Note: the hollow circle in the figure represents the fixed position of the fixed pulley).

[0025] Figure 4 This is a schematic diagram of the fiber rope length adjustment device of the organic glass ball fixing device in liquid according to an embodiment of the present invention. Detailed Implementation

[0026] It should be noted that, unless otherwise specified, the embodiments and features described in the present invention can be combined with each other.

[0027] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0028] Example 1

[0029] See Figure 1-4 An acrylic ball fixing device in a liquid includes a spatial frame structure 1, an annular rope pocket 2, an acrylic ball structure 3, and a fiber rope length adjustment device 4. The acrylic ball 301 of the acrylic ball structure 3 is placed in the liquid within the spatial frame structure 1. The upper and lower parts of the acrylic ball 301 are fitted with an annular rope pocket 2. The annular rope pockets 2 at the upper and lower parts of the acrylic ball 301 are respectively connected to the fiber rope length adjustment device 4 through a pull-down fiber rope and a pull-up fiber rope. The fiber rope length adjustment device 4 is installed on the spatial frame structure 1.

[0030] In this embodiment, the circumferential rope pockets at the upper and lower equator of the acrylic sphere, along with the pull-down and pull-up fiber ropes, can effectively fix the acrylic sphere. When the acrylic sphere floats or sinks, causing its position to change, the fiber rope length adjustment device can adjust the length of the pull-up and pull-down fiber ropes to ensure that the acrylic sphere is always in the designed position.

[0031] In a specific example, the spatial frame structure 1 is a three-dimensional frame structure with a trapezoidal cross-section formed by welding frame columns 101, upper frame beams 102, lower frame beams 103 and diagonal braces 104. Stainless steel wall panels 105 are fixed on the inner wall of the three-dimensional frame structure to form a sealed space for placing liquid. The three-dimensional frame structure is placed inside the rock cave entrance 5.

[0032] Because the top of the spatial frame structure is limited by the net space outline of the rock cave entrance, the spatial frame structure is contracted along the length of the cave entrance using diagonal bracing, meaning the upper frame beam is shorter than the lower frame beam.

[0033] In a specific example, the circumferential rope pocket 2 includes a small circumferential rope pocket 201 and a large circumferential rope pocket 202. The upper and lower parts of the plexiglass ball 301 are respectively fitted with a small circumferential rope pocket 201 and a large circumferential rope pocket 202. The diameter formed by the small circumferential rope pocket 201 is smaller than the diameter formed by the large circumferential rope pocket 202, but both are smaller than the diameter of the plexiglass ball 301.

[0034] In this embodiment, the upper or lower fiber rope is fixed to the large and small circumferential rope pockets, respectively. Even if one of the rope pockets breaks, the plexiglass ball will not collapse under the action of the other rope pocket, thus improving the redundancy and safety of the structure.

[0035] In a specific example, the small annular rope pocket 201 and the large annular rope pocket 202 at the upper part of the equator of the plexiglass ball 301 are respectively connected to the pull-down fiber rope one 203 and the pull-down fiber rope two 204. The pull-down fiber rope one 203 and the pull-down fiber rope two 204 are respectively connected to the corresponding fixed pulley group 6 on the lower frame beam 103 to change the direction of force and are connected to the corresponding fiber rope length adjustment device 4 on the upper frame beam 102.

[0036] In this embodiment, the direction of force is changed by the corresponding fixed pulley group on the lower frame beam, thereby enabling the fiber rope length adjustment device installed on the upper frame beam to pull down the small and large circumferential rope pockets at the upper part of the equator of the plexiglass sphere.

[0037] Since the lower frame beam is in a liquid environment, it is not convenient to install and operate the fiber rope length adjustment device. Therefore, it is more appropriate to install the fiber rope length adjustment device on the upper frame beam. Thus, this fixed pulley block is installed to achieve the above function.

[0038] In a specific example, the small annular rope pocket 201 and the large annular rope pocket 202 at the lower part of the equator of the plexiglass ball 301 are respectively connected to the first pull-up fiber rope 205 and the second pull-up fiber rope 206. The first pull-up fiber rope 205 and the second pull-up fiber rope 206 are directly connected to the corresponding fiber rope length adjustment device 4 on the upper frame beam 102.

[0039] Since the fiber rope length adjustment device in this embodiment is located on the upper frame beam, there is no need to set up a fixed pulley group to change the direction. The upward-pulling fiber rope one and the upward-pulling fiber rope two do not need to change the direction and can be directly connected to the fiber rope length adjustment device on the upper frame beam.

[0040] In a specific example, the fixed pulley group 6 consists of two fixed pulleys mounted on the middle ring beam 106 of the lower frame beam 103. One of the fixed pulleys is located on the vertical projection edge of the plexiglass ball 301, and the other fixed pulley is located on the outer side.

[0041] In this embodiment, the upper end of the pull-down fiber rope one is fixed to the large circular rope pocket. It first passes through the first fixed pulley on the inner side, changing from vertical to horizontal force, and then through the second fixed pulley, changing from horizontal to vertical force, before connecting to the fiber rope length adjustment device. Similarly, the upper end of the pull-down fiber rope two is fixed to the small circular rope pocket. It first passes through the first fixed pulley on the inner side, changing from vertical to horizontal force, and then through the second fixed pulley, changing from horizontal to vertical force, before connecting to the fiber rope length adjustment device.

[0042] In this embodiment, the corresponding fixed pulley group on the lower frame beam can achieve effective force transmission. Since the first fixed pulley is located on the projection edge of the plexiglass ball in the vertical direction, the pull-down fiber rope can easily fix the plexiglass ball. The other outer fixed pulley can make the pull-down fiber rope extend outward and stagger, preventing the pull-down fiber rope from interfering with the plexiglass ball when adjusting by the fiber rope length adjustment device, thus affecting the adjustment operation of the fiber rope length adjustment device for the plexiglass ball's floating or sinking.

[0043] In a specific example, the first pull-up fiber rope 205 and the second pull-up fiber rope 206 are arranged alternately with a circumferential interval of 30°, for a total of 6 first pull-up fiber ropes 205 and 6 second pull-up fiber ropes 206; the first pull-down fiber rope 203 and the second pull-down fiber rope 204 are arranged alternately with a circumferential interval of 30°, for a total of 6 first pull-down fiber ropes 203 and 6 second pull-down fiber ropes 204; the first pull-up fiber rope 205, the second pull-up fiber rope 206, the first pull-down fiber rope 203, and the second pull-down fiber rope 204 are arranged alternately with a circumferential interval of 15°.

[0044] It should be noted that in this embodiment, each upward-pulling fiber rope corresponds to a fiber rope length adjustment device, and each downward-pulling fiber rope corresponds to a pulley group and a fiber rope length adjustment device. Through the above arrangement, this embodiment can effectively fix and adjust the plexiglass sphere, and reduce the concentrated obstruction of the plexiglass sphere, thereby increasing the probability of neutrinos being captured and forming charged particles after nuclear reactions.

[0045] In a specific example, 24 fiber rope length adjustment devices 4 are provided. The upper frame beam 102 is provided with a large ring beam 107 and a small ring beam 108. 12 fiber rope length adjustment devices 4 are evenly spaced on the large ring beam 107 and the small ring beam 108 respectively. The upper frame beam 102, the large ring beam 107 and the small ring beam 108 are provided with holes at the positions where the fiber rope length adjustment devices 4 are installed, allowing the upward pull fiber rope 1 205 or the upward pull fiber rope 2 206 or the downward pull fiber rope 1 203 or the downward pull fiber rope 2 204 to pass through. The frame column 101 is provided with a positioner 7 for real-time monitoring of the position of the plexiglass sphere structure 301. The upper part of the plexiglass sphere structure 3 is provided with a chimney-type conduit 302.

[0046] It should be noted that the 12 fiber rope length adjustment devices installed on the small ring beam in this embodiment are used to adjust the upward pull of the plexiglass ball; the 12 fiber rope length adjustment devices installed on the large ring beam in this embodiment are used to adjust the downward pull of the plexiglass ball.

[0047] In this embodiment, the position of the plexiglass sphere structure is monitored in real time by a locator fixed to the frame column. When sinking or floating occurs, the position can be adjusted in real time by a fiber rope length adjustment device.

[0048] The chimney-type conduit of this embodiment is used to transport and discharge liquid into and out of the plexiglass sphere, and serves as a channel for the wires of the detection device inside the plexiglass sphere, and can lead the wires to the top of the space frame structure.

[0049] In a specific example, the fiber rope length adjustment device 4 includes a first fixed pulley 40, a screw adjustment component 41, a pressure sensor 42, and a box-type diagonal brace 43. A pulley support plate 402 is mounted on the pulley base 401 of the first fixed pulley 40. A pulley 404 is mounted on the pulley support plate 402 via a pulley shaft 403. The rear end of the pulley base 401 is connected to the right diagonal brace plate 431 of the box-type diagonal brace 43. The right diagonal brace plate 431 is connected to a left diagonal brace plate 433 via an upper end plate 432. A side plate 434 is connected to one side of the right diagonal brace plate 431 and the left diagonal brace plate 433, and the other side is reinforced by diagonal stiffening ribs 435 and horizontal stiffening ribs 436. The upper end of the left diagonal brace plate 433 is connected to the block 411 of the screw adjustment component 41, and the lower end... The top and side surfaces of the pulley support plate 402 are connected by a horizontal support plate 437 and a vertical support plate 438; a threaded rod 412 is threaded through and threaded to the block 411, and the threaded rod 412 on the upper part of the block 411 passes through a pressure sensor 42, a gasket 413 and a hexagonal long nut 414 in sequence; the lower end of the threaded rod 412 is connected to two clamping plates 416 through an end plate 415, and a sleeve 418 is rotatably connected between the two clamping plates 416 through a pin rod 417. The lower part of the sleeve 418 has an opening that allows the fiber rope to pass through, and circular baffles 419 are provided on both sides of the opening. The pin rod 417 is connected to one end of the upward pull fiber rope 205 or the upward pull fiber rope 206 or the downward pull fiber rope 203 or the downward pull fiber rope 204 through the opening of the sleeve 418.

[0050] It should be noted that in this embodiment, the first fixed pulley is used to change the direction of force on the fiber rope without changing the magnitude of the force on the fiber rope; two clamping plates are vertically welded to the end plate, forming a U-shape; both the clamping plates and the end plate have round holes, which are used to pass through the pin and the threaded rod, respectively. A circular baffle is welded to each end near the sleeve, and the sleeve is fitted onto the pin to increase the diameter of the pin and reduce the curvature, thereby alleviating the stress concentration problem of the fiber rope fitted onto the pin; the net distance between the two circular baffles can be determined according to the diameter of the fiber rope to ensure that the fiber rope is at the center of force and does not have an eccentric effect; the block is welded to the upper end face of the box-type diagonal brace, and it has a threaded hole that matches the threaded rod; after the threaded rod passes through the round hole on the end plate, it is screwed into the block, and then passes through the pressure sensor and the washer in sequence, and the hexagonal long nut is connected to the threaded rod.

[0051] The box-type diagonal brace in this embodiment consists of an end plate, an upper diagonal brace, a lower diagonal brace, a side plate, diagonal stiffening ribs, horizontal stiffening ribs, a horizontal brace, and a vertical brace, which are welded together to form the box-type diagonal brace.

[0052] In the specific implementation, the fiber rope length adjustment device fixed on the small ring beam is used to connect and adjust the first and second pull-up fiber ropes to prevent the acrylic sphere structure from sinking. The position is as follows: Figure 2The solid black cube in the middle. The fiber rope length adjustment device, fixed to the large ring beam, is used to connect and adjust pull-down fiber rope one and pull-down fiber rope two to prevent the plexiglass sphere structure from floating. Its position is as follows... Figure 2 The black solid cube in the middle.

[0053] The fixed pulley system on the central ring beam is used to change the force direction of pulldown fiber rope one and pulldown fiber rope two, thereby placing the fiber rope length adjustment device at the top of the space frame structure for easy adjustment of the fiber rope's force state by personnel at any time. The location is as follows: Figure 3 The hollow circle in the middle.

[0054] Example 2

[0055] To achieve the above objectives, this embodiment also provides an adjustment method for the acrylic sphere fixing device in a liquid as described above, comprising the following steps:

[0056] S1: First, place the acrylic sphere structure 3 in the space frame structure 1. Then, erect scaffolding below the acrylic sphere structure 3 to support it. A large circular rope pocket 202 is fitted onto the lower part of the acrylic sphere 301 at the equator. The lower end of the first pull-up fiber rope 205 is fixed to the large circular rope pocket 202. The upper end of the first pull-up fiber rope 205 is provided with an eyelet, which is fitted onto the pin 417 on the sleeve 418 in the fiber rope length adjustment device 4. Install the small circular rope pocket 201 at the lower part of the equator of the acrylic sphere 301, the large circular rope pocket 202 and the small circular rope pocket 201 at the upper part of the equator, and the corresponding fiber ropes in this way. The first pull-down fiber rope 203 and the second pull-down fiber rope 204 need to pass through the fixed pulley group 6 fixed on the middle ring beam 106 to change the direction of force.

[0057] S2: First, fine-tune the hexagonal long nut 414 in the fiber rope length adjustment device 4 fixed on the small ring beam 108 so that the upward-pulling fiber rope 1 205 and the upward-pulling fiber rope 2 206 are in a taut state; then fine-tune the hexagonal long nut 414 in the fiber rope length adjustment device 4 fixed on the large ring beam 107 so that the downward-pulling fiber rope 1 203 and the downward-pulling fiber rope 2 204 are in a taut state; remove the scaffolding below the plexiglass ball structure 3;

[0058] S3: According to the requirements of the detection mission, liquids of different densities are simultaneously injected into the interior of the plexiglass sphere structure 3 and between the plexiglass sphere structure 3 and the space frame structure 1, so as to ensure that the liquid inside and outside the plexiglass sphere structure 3 are at the same level, thereby minimizing the force on the plexiglass sphere structure 3 when it floats or sinks.

[0059] S4: As the liquid is poured in, the buoyancy or sinking force on the plexiglass sphere structure 3 gradually increases, and the deformation of the fiber rope increases, causing the structural position of the plexiglass sphere structure 3 to change. Therefore, during the liquid pouring process, the position of the plexiglass sphere structure 3 is monitored in real time by means of the positioner 7 fixed on the frame column 101 and the force on the fiber rope is monitored in real time by means of the pressure sensor 42 fixed in the fiber rope length adjustment device 4. This ensures that the plexiglass sphere structure 3 is in the designed position. During the operation of the detector, the force and length of the fiber rope can also be adjusted at any time to eliminate the creep effect of the fiber rope.

[0060] The adjustment method of the acrylic ball fixing device in the liquid in this embodiment has the same advantages as the acrylic ball fixing device in the liquid described above compared with the prior art, and will not be repeated here.

[0061] In summary, the upward or downward fiber rope of this invention is fixed to the large and small circumferential rope pockets respectively. Even if one rope pocket breaks, the plexiglass sphere will not collapse under the action of the other rope pocket, thus improving the redundancy and safety of the structure. This invention achieves the goal of replacing the liquid inside and outside the plexiglass sphere while ensuring reasonable stress on the plexiglass sphere, reducing the disadvantage of concentrated obstruction of the plexiglass sphere by the fiber rope, and facilitating the conduct of multiple detection tasks. The fiber rope adjustment device of this invention solves the problem of real-time adjustment and tracking of the stress state of the fiber rope during reinstallation, commissioning, and operation, eliminating the fiber rope creep effect and ensuring that the mailed plexiglass sphere is in the designed position.

[0062] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A device for fixing an acrylic sphere in a liquid, characterized in that, The device includes a spatial frame structure (1), an annular rope pocket (2), an acrylic ball structure (3), and a fiber rope length adjustment device (4). The acrylic ball (301) of the acrylic ball structure (3) is placed in a liquid inside the spatial frame structure (1). The upper and lower parts of the acrylic ball (301) are fitted with an annular rope pocket (2). The annular rope pockets (2) at the upper and lower parts of the acrylic ball (301) are respectively connected to the fiber rope length adjustment device (4) through a pull-down fiber rope and a pull-up fiber rope. The fiber rope length adjustment device (4) is installed on the spatial frame structure (1).

2. The acrylic sphere fixing device in liquid according to claim 1, characterized in that, The spatial frame structure (1) is a three-dimensional frame structure with a trapezoidal cross-section formed by welding frame columns (101), upper frame beams (102), lower frame beams (103) and diagonal braces (104). Stainless steel wall panels (105) are fixed on the inner wall of the three-dimensional frame structure to form a sealed space for placing liquid. The three-dimensional frame structure is placed inside the rock cave entrance (5).

3. The acrylic sphere fixing device in liquid according to claim 2, characterized in that, The circumferential rope pocket (2) includes a small circumferential rope pocket (201) and a large circumferential rope pocket (202). The upper and lower parts of the equator of the plexiglass ball (301) are respectively fitted with a small circumferential rope pocket (201) and a large circumferential rope pocket (202). The diameter formed by the small circumferential rope pocket (201) is smaller than the diameter formed by the large circumferential rope pocket (202), but both are smaller than the diameter of the plexiglass ball (301).

4. The device for fixing an acrylic sphere in a liquid according to claim 3, characterized in that, The small annular rope pocket (201) and the large annular rope pocket (202) at the upper part of the equator of the organic glass ball (301) are respectively connected to the first pull-down fiber rope (203) and the second pull-down fiber rope (204). The first pull-down fiber rope (203) and the second pull-down fiber rope (204) are respectively connected to the corresponding fixed pulley group (6) on the lower frame beam (103) to change the direction of force and are connected to the corresponding fiber rope length adjustment device (4) on the upper frame beam (102).

5. The acrylic sphere fixing device in liquid according to claim 4, characterized in that, The small annular rope pocket (201) and the large annular rope pocket (202) at the lower part of the equator of the organic glass ball (301) are respectively connected to the first pull-up fiber rope (205) and the second pull-up fiber rope (206). The first pull-up fiber rope (205) and the second pull-up fiber rope (206) are directly connected to the corresponding fiber rope length adjustment device (4) on the upper frame beam (102).

6. The acrylic sphere fixing device in liquid according to claim 4, characterized in that, The fixed pulley assembly (6) consists of two fixed pulleys mounted on the middle ring beam (106) of the lower frame beam (103). One of the fixed pulleys is located on the vertical projection edge of the plexiglass ball (301), and the other fixed pulley is located on the outer side.

7. The acrylic sphere fixing device in liquid according to claim 5, characterized in that, The first pull-up fiber rope (205) and the second pull-up fiber rope (206) are arranged alternately with a circumferential interval of 30°, for a total of 6 first pull-up fiber ropes (205) and 6 second pull-up fiber ropes (206); the first pull-down fiber rope (203) and the second pull-down fiber rope (204) are arranged alternately with a circumferential interval of 30°, for a total of 6 first pull-down fiber ropes (203) and 6 second pull-down fiber ropes (204); the first pull-up fiber rope (205), the second pull-up fiber rope (206), the first pull-down fiber rope (203), and the second pull-down fiber rope (204) are arranged alternately with a circumferential interval of 15°.

8. The device for fixing an acrylic sphere in a liquid according to claim 7, characterized in that, The fiber rope length adjustment device (4) is provided with 24 units. The upper frame beam (102) is provided with a large ring beam (107) and a small ring beam (108). The large ring beam (107) and the small ring beam (108) are each evenly spaced with 12 fiber rope length adjustment devices (4). The upper frame beam (102), the large ring beam (107) and the small ring beam (108) are provided with holes at the positions where the fiber rope length adjustment devices (4) are installed, allowing the upward pull of fiber rope one (205) or the upward pull of fiber rope two (206) or the downward pull of fiber rope one (203) or the downward pull of fiber rope two (204) to pass through. The frame column (101) is provided with a locator (7) for real-time monitoring of the position of the plexiglass ball structure (301). The upper part of the plexiglass ball structure (3) is provided with a chimney-type conduit (302).

9. The device for fixing an acrylic sphere in a liquid according to claim 8, characterized in that, The fiber rope length adjustment device (4) includes a first fixed pulley (40), a screw adjustment component (41), a pressure sensor (42), and a box-type inclined brace (43). A pulley support plate (402) is installed on the pulley base (401) of the first fixed pulley (40). A pulley (404) is installed on the pulley support plate (402) through the pulley shaft (403). The rear end of the pulley base (401) is connected to the right inclined brace of the box-type inclined brace (43). (431) Connected, the right diagonal brace (431) is connected to the left diagonal brace (433) through the upper end plate sealing plate (432). A side plate (434) is connected to one side of the right diagonal brace (431) and the left diagonal brace (433), and the other side is reinforced by diagonal stiffening ribs (435) and horizontal stiffening ribs (436). The upper end of the left diagonal brace (433) is connected to the block (411) of the screw adjusting component (41), and the lower end is connected to the horizontal The support plate (437) and vertical support plate (438) are connected to the top and side surfaces of the pulley support plate (402); the block (411) is threaded with a threaded rod (412), and the threaded rod (412) on the upper part of the block (411) passes through a pressure sensor (42), a gasket (413), and a hexagonal long nut (414) in sequence; the lower end of the threaded rod (412) is connected to two clamping plates (416) through an end plate (415). A sleeve (418) is rotatably connected between two clamping plates (416) via a pin (417). The lower part of the sleeve (418) has an opening that allows the fiber rope to pass through. Circular baffles (419) are provided on both sides of the opening. The pin (417) is connected to one end of either the first upward-pulling fiber rope (205), the second upward-pulling fiber rope (206), the first downward-pulling fiber rope (203), or the second downward-pulling fiber rope (204) through the opening of the sleeve (418).

10. A method for adjusting the acrylic sphere fixing device in a liquid according to any one of claims 1-9, characterized in that, Includes the following steps: S1: First, place the acrylic sphere structure (3) in the space frame structure (1), and erect scaffolding below the acrylic sphere structure (3) to support it; a large circular rope pocket (202) is fitted on the lower part of the equator of the acrylic sphere (301), and the lower end of the first upward fiber rope (205) is fixed to the large circular rope pocket (202). The upper end of the first upward fiber rope (205) is provided with an eyelet, which is fitted onto the fiber rope length adjustment device. (4) On the pin (417) on the sleeve (418); Install the small ring rope pocket (201) at the lower equator of the plexiglass ball (301), the large ring rope pocket (202) and the small ring rope pocket (201) at the upper equator, and the corresponding fiber ropes in this way, wherein the pull-down fiber rope one (203) and pull-down fiber rope two (204) need to pass through the fixed pulley group (6) fixed on the middle ring beam (106) to change the direction of force; S2: First, fine-tune the hexagonal long nut (414) in the fiber rope length adjustment device (4) fixed on the small ring beam (108) so that the first upward fiber rope (205) and the second upward fiber rope (206) are in a taut state; then fine-tune the hexagonal long nut (414) in the fiber rope length adjustment device (4) fixed on the large ring beam (107) so that the first downward fiber rope (203) and the second downward fiber rope (204) are in a taut state; remove the scaffolding below the plexiglass ball structure (3); S3: According to the requirements of the detection mission, liquids of different densities are simultaneously injected into the interior of the plexiglass sphere structure (3) and between the plexiglass sphere structure (3) and the space frame structure (1) to ensure that the liquid height inside and outside the plexiglass sphere structure (3) is at the same level, so as to minimize the force on the plexiglass sphere structure (3) when it floats or sinks. S4: As the liquid is poured in, the buoyancy or sinking force on the plexiglass sphere structure (3) gradually increases, and the deformation of the fiber rope increases, causing the structural position of the plexiglass sphere structure (3) to change. Therefore, during the liquid pouring process, the position of the plexiglass sphere structure (3) is monitored in real time by means of the positioner (7) fixed on the frame column (101) and the force on the fiber rope is monitored in real time by means of the pressure sensor (42) fixed in the fiber rope length adjustment device (4). This ensures that the plexiglass sphere structure (3) is in the designed position. During the operation of the detector, the force and length of the fiber rope can also be adjusted at any time to eliminate the creep effect of the fiber rope.

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