CN114737466A - Bailey beam support - Google Patents
Bailey beam support Download PDFInfo
- Publication number
- CN114737466A CN114737466A CN202210360058.1A CN202210360058A CN114737466A CN 114737466 A CN114737466 A CN 114737466A CN 202210360058 A CN202210360058 A CN 202210360058A CN 114737466 A CN114737466 A CN 114737466A
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- Prior art keywords
- supporting element
- clamping
- sliding
- bailey
- post
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 239000011324 bead Substances 0.000 claims abstract description 21
- 229910000831 Steel Inorganic materials 0.000 claims description 17
- 239000010959 steel Substances 0.000 claims description 17
- 239000011049 pearl Substances 0.000 description 7
- 238000010276 construction Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D15/00—Movable or portable bridges; Floating bridges
- E01D15/12—Portable or sectional bridges
- E01D15/133—Portable or sectional bridges built-up from readily separable standardised sections or elements, e.g. Bailey bridges
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Joining Of Building Structures In Genera (AREA)
Abstract
The invention relates to the technical field of bridge equipment, in particular to a Bailey beam bracket which comprises a connecting beam, a first supporting element, a second supporting element, a clamping unit and a Bailey frame unit, wherein the connecting beam is arranged between the first supporting element and the second supporting element, the tops of the first supporting element and the second supporting element are respectively provided with a sliding groove, the bottom of the connecting beam is arranged in the two sliding grooves, the Bailey frame unit is connected to the top of the connecting beam, the clamping unit comprises a fastening bolt and a limiting bolt, the fastening bolt is movably connected with a clamping ball, the side wall of the bottom of the through hole of the first supporting element is provided with a clamping groove, the fastening bolt sequentially penetrates through the through hole on the first supporting element and the through hole on the connecting beam, the limiting bolt is in threaded connection with the hollow cavity of the fastening bolt, the card bead is extruded into the card slot. The Bailey beam support can be installed more quickly and accurately.
Description
Technical Field
The invention relates to the technical field of bridge equipment, in particular to a Bailey beam support.
Background
The Bailey beam is a truss assembled by Bailey frames, and the Bailey frames are mainly used for erecting simple bridges at riverways, cliffs and other places in wartime due to the characteristics of quick erection, strong maneuverability and the like. In the common engineering construction process, due to the fact that the Bailey beams are used conveniently and quickly, preconditions are provided for the support in the continuous cast-in-place beam construction process of crossing roads and river channels, and the Bailey beam support is a device for supporting the bottom of the Bailey frame when the Bailey beams are assembled.
The existing Bailey beam support has various types, but has the problems of incapability of being quickly installed in a butt joint mode, low construction efficiency and the like when in use.
Disclosure of Invention
The invention aims to provide a Bailey beam bracket capable of being installed more quickly and accurately.
In order to solve the technical problem, the application provides the following technical scheme: a Bailey beam bracket comprises a connecting beam, a first supporting element, a second supporting element, a clamping unit and a Bailey frame unit, wherein the first supporting element and the second supporting element are vertically arranged, the connecting beam is arranged between the first supporting element and the second supporting element, sliding grooves are formed in the tops of the first supporting element and the second supporting element, the bottom of the connecting beam is arranged in the two sliding grooves, the connecting beam is suitable for sliding relative to the first supporting element and the second supporting element, the Bailey frame unit is connected to the top of the connecting beam, the clamping unit comprises a fastening bolt and a limiting bolt, the bottom of the limiting bolt is in a frustum cone shape, the fastening bolt is a hollow bolt, clamping beads are movably connected inside the fastening bolt, the clamping grooves correspond to the clamping beads one to one, and through holes are formed in the bottoms of the first supporting element and the connecting beam, the two through holes are bolt holes, a clamping groove with a semicircular cross section is formed in the side wall of the bottom of the through hole of the first supporting element, the fastening bolt sequentially penetrates through the through hole in the first supporting element and the through hole in the connecting beam, the limiting bolt is in threaded connection with the inside of a hollow cavity of the fastening bolt, and the bottom of the limiting bolt extrudes the clamping beads into the clamping groove.
Furthermore, the clamping beads are provided with two groups, and the two groups of clamping beads are symmetrically distributed around the longitudinal middle parting line of the fastening bolt.
Further, the connecting beam is an I-shaped steel, and a lower flange plate of the I-shaped steel is arranged in the sliding groove.
Further, the first support element and the second support element are height adjustable.
Furthermore, the first supporting element comprises a supporting upright post, an adjusting post, a limiting post and a rotary disc, the supporting upright post is of a hollow structure with a closed bottom, the limiting post is connected to the bottom of the inner cavity of the supporting upright post, one end of the adjusting post is provided with a sliding groove extending along the axial direction, the top of the limiting post is arranged in the sliding groove, one end of the adjusting post provided with the sliding groove is positioned in the inner cavity of the supporting upright post, the adjusting post is suitable for sliding relative to the limiting post along the sliding groove, the rotary disc is a tubular body and is in threaded connection with the outer wall of the top of the adjusting post, the rotary disc is arranged at the top of the supporting upright post, the bottom of the rotary disc is in contact with the top of the supporting upright post, the rotary disc is suitable for rotating relative to the supporting upright post, the sliding groove at the top of the first supporting element is arranged at the top of the adjusting post, the clamping groove is formed in the position, corresponding to the bottom of the fastening bolt, of the adjusting column.
Further, the connecting device also comprises a connecting block, the connecting block is an annular body, an annular mounting groove matched with the connecting block is formed in the top of the supporting upright post, and the connecting block is arranged in the mounting groove.
Further, the bailey truss unit comprises a bailey truss body, a pair of sliders, a pair of clamping blocks, a slider locking device and a slider adjusting device, the bailey truss body is arranged on the upper flange plate of the i-steel, the pair of sliders is suitable for sliding relative to the upper flange plate of the i-steel, the pair of sliders is respectively located on two sides of the bailey truss body, the pair of clamping blocks is respectively connected to one slider, the clamping blocks and the sliders connected with the clamping blocks move synchronously, the clamping blocks are used for clamping the bailey truss body, the slider adjusting device is connected between the pair of sliders, the slider adjusting device is used for driving the pair of sliders to move in the same direction or in the opposite direction, and the slider locking device is connected between the sliders and the upper flange plate of the i-steel.
Further, the sliding block locking device is a bolt connected between the sliding block and the I-shaped steel.
Further, the sliding block adjusting device comprises a screw rod, threads on the surface of the screw rod are divided into two parts at the position corresponding to the longitudinal middle dividing line of the bailey truss, the rotating directions of the threads of the two parts are opposite, and two ends of the screw rod are respectively in threaded connection with one sliding block.
Furthermore, the screw rod further comprises two butt-joint lugs, one butt-joint lug is connected with one sliding block, and the joint of the screw rod and the sliding block is positioned on the butt-joint lug.
Compared with the prior art, the invention has at least the following beneficial effects: according to the Bailey beam support, the clamping unit comprises the fastening bolt and the limiting bolt, the bottom of the limiting bolt is in the shape of a truncated cone, the fastening bolt is a hollow bolt, and the clamping bead is movably connected inside the fastening bolt, so that the clamping bead can be extruded by rotating the limiting bolt, the clamping bead is clamped into the clamping groove of the first supporting element to fix the first supporting element and the connecting beam mutually, and the Bailey beam support is quicker and more accurate to mount.
Drawings
Fig. 1 is a schematic front view of a bailey beam support according to the present invention;
FIG. 2 is an enlarged view of a portion of FIG. 1 at A;
FIG. 3 is a schematic view of a connecting structure of an adjusting column and an I-shaped steel in the Bailey beam bracket of the invention;
FIG. 4 is an enlarged view of a portion of FIG. 3 at B;
FIG. 5 is a cross-sectional view of a first support member of the Bailey beam bracket of the present invention;
fig. 6 is a partially enlarged view of C in fig. 5.
Detailed Description
As shown in fig. 1, 2, 3 and 4, the beret beam bracket of the present invention comprises a connection beam, a first support element, a second support element, a clamping unit and a beret frame unit, wherein the connection beam is arranged between the first support element and the second support element, the first support element and the second support element are both vertically arranged, the top of the first support element and the top of the second support element are both provided with a sliding groove, the bottom of the connection beam is arranged in the two sliding grooves, the connection beam is suitable for sliding relative to the first support element and the second support element, the two beret frame units are both connected to different positions of the top of the connection beam, the clamping unit comprises a fastening bolt 5 and a limiting bolt 7, the bottom of the limiting bolt 7 is in a cone frustum shape, the fastening bolt 5 is a hollow bolt, the fastening bolt 5 is movably connected with at least two clamping beads 6, the bottoms of the first support element and the connection beam are both provided with through holes, the two through holes are bolt holes, the side wall of the bottom of the through hole of the first supporting element is provided with clamping grooves with semicircular sections, the clamping grooves correspond to the clamping beads 6 one by one, the fastening bolt 5 sequentially penetrates through the through hole on the first supporting element and the through hole on the connecting beam, the limiting bolt 7 is in threaded connection with the hollow cavity of the fastening bolt 5, the clamping beads 6 are extruded into the clamping grooves by the bottom of the limiting bolt 7, the inside of the fastening bolt 5 is of a hollow structure, and when the limiting bolt 7 moves out of the fastening bolt 5, the clamping beads 6 move at the hollow part of the inner cavity of the fastening bolt 5; the second support element is fixed with the connecting beam by adopting the same structure as the first support element. During the installation, place the tie-beam in the spout on first supporting element, the second supporting element, insert fastening bolt 5 again in the through-hole of first supporting element, tie-beam, rotate stop bolt 7, make stop bolt 7 remove the extrusion downwards two sets of card pearls 6, go into the draw-in groove on first supporting element's the through-hole with two sets of card pearls 6 cards in to restrict two sets of card pearls 6 and make card pearl 6 unable activities, thereby fix first supporting element, tie-beam. Because the block unit includes fastening bolt 5, stop bolt 7 bottom is frustum of a cone shape, and fastening bolt 5 is the cavity bolt, and fastening bolt 5's inside swing joint has card pearl 6, consequently can extrude card pearl 6 through rotating stop bolt 7, makes card pearl 6 card go into in the draw-in groove of first supporting element with first supporting element, tie-beam reciprocal anchorage, installs more fast, more accurate.
Optionally, two sets of the clamping beads 6 are provided, the two sets of the clamping beads 6 are symmetrically distributed about the longitudinal middle line of the fastening bolt 5, and each set of the clamping beads is one.
Optionally, the connecting beam is an i-beam 3, the sliding groove in the top of the first supporting element is matched with the size and shape of the lower flange plate of the i-beam 3, and the lower flange plate of the i-beam 3 is clamped in the sliding groove.
Optionally, the height of both the first support element and the second support element is adjustable. The height of the whole Bailey beam support is adjusted by adjusting the heights of the first supporting element and the second supporting element, so that the construction is more convenient.
Optionally, as shown in fig. 5 and fig. 6, the first supporting element includes a supporting upright post 1, an adjusting post 2, a limiting post 13, and a rotating disc 15, the supporting upright post 1 is a hollow structure with a closed bottom, the bottom of the limiting post 13 is connected to the bottom of the inner cavity of the supporting upright post 1, one end of the adjusting post 2 is provided with a sliding groove 21 extending along the axial direction, one end of the adjusting post 2 provided with the sliding groove 21 is located in the inner cavity of the supporting upright post 1, the top of the limiting post 13 is disposed in the sliding groove 21, the adjusting post 2 is adapted to slide relatively along the sliding groove 21 with respect to the limiting post 13, the rotating disc 15 is a tubular body, the rotating disc 15 is screwed to the outer wall of the top of the adjusting post 2, the rotating disc 15 is disposed at the top of the supporting upright post 1, the bottom of the rotating disc 15 is in contact with the top of the supporting upright post 1, the rotating disc 15 is adapted to rotate with respect to move the adjusting post 2 upward or downward, the sliding groove at the top of the first supporting element 2, namely, the lower flange plate of the I-steel 3 is clamped in the sliding groove at the top of the adjusting column 2, the clamping groove is formed in the position, corresponding to the bottom of the fastening bolt 5, of the adjusting column 2, when the height of the first supporting element is adjusted, the rotary table 15 is rotated, the rotary table 15 is connected with the adjusting column 2 through threads, and the limiting column 13 limits the rotation of the adjusting column 2, so that the adjusting column 2 slides up and down in the supporting column 1.
Optionally, the support column further comprises a connecting block 14, the connecting block 14 is an annular body, an annular mounting groove adapted to the connecting block 14 is formed in the top of the support column 1, the connecting block 14 is arranged in the mounting groove, the connecting block 14 is made of metal, and the cross section of the connecting block 14 is shaped like a circular truncated cone.
Optionally, the two bailey truss units have the same structure, one bailey truss unit includes a bailey truss body 4, a pair of sliders 8, a pair of clamping blocks 9, a slider locking device, and a slider adjusting device, the bailey truss body 4 is disposed on the upper flange plate of the i-steel 3, the pair of sliders 8 is adapted to slide relative to the upper flange plate of the i-steel, the pair of sliders 8 are respectively located at two sides of the bailey truss body 4, the pair of clamping blocks 9 are respectively connected to one slider 8, the clamping blocks 9 and the sliders 8 connected to the clamping blocks 9 move synchronously, the clamping blocks 9 are used for clamping the bailey truss body 4, the slider adjusting device is connected between the pair of sliders 8, the slider adjusting device is used for driving the pair of sliders 8 to move in the same direction or in the opposite direction, and the slider locking device is connected between the sliders 8 and the upper flange plate of the i-steel 3. Bailey truss bodies 4 are erected on I-steel 3 and inserted between a pair of sliding blocks 8, the distance between the two Bailey truss bodies 4 is adjusted, the two sliding blocks move oppositely through sliding block adjusting devices, the clamping blocks are driven to clamp and fix the Bailey truss bodies, and the sliding blocks are fixed through sliding block locking devices to prevent the Bailey truss bodies from deviating.
Optionally, the slider locking means is a bolt connected between the slider 8 and the i-steel 3.
Optionally, the sliding block adjusting device comprises a screw rod 11, the thread on the surface of the screw rod 11 is divided into two parts at the position corresponding to the longitudinal middle division line of the bailey truss body 4, the turning directions of the threads of the two parts are opposite, and two ends of the screw rod 11 are respectively in threaded connection with one sliding block 8. The screw rod 11 is rotated to enable the two sliding blocks 8 to move oppositely or reversely, so that the clamping block 9 is driven to clamp or loosen the bailey truss body 4.
Optionally, the connecting device further comprises two butt-joint lugs 10, through holes with threads are formed in the two butt-joint lugs 10, one butt-joint lug is connected with one sliding block 8, and the connecting position of the screw rod 11 and the sliding block 8 is located on the butt-joint lug 10.
The above-mentioned embodiments are merely illustrative of the preferred embodiments of the present invention, and do not limit the scope of the present invention, and various modifications and improvements of the technical solution of the present invention by those skilled in the art should fall within the protection scope defined by the claims of the present invention without departing from the spirit of the present invention.
Claims (10)
1. A Bailey beam bracket is characterized by comprising a connecting beam, a first supporting element, a second supporting element, a clamping unit and a Bailey frame unit, wherein the first supporting element and the second supporting element are vertically arranged, the connecting beam is arranged between the first supporting element and the second supporting element, sliding grooves are respectively formed in the tops of the first supporting element and the second supporting element, the bottom of the connecting beam is arranged in the two sliding grooves, the connecting beam is suitable for sliding relative to the first supporting element and the second supporting element, the Bailey frame unit is connected to the top of the connecting beam, the clamping unit comprises a fastening bolt (5) and a limiting bolt (7), the bottom of the limiting bolt (7) is in a cone frustum shape, the fastening bolt (5) is a hollow bolt, and at least two clamping beads (6) are movably connected inside the fastening bolt (5), the connecting beam is characterized in that through holes are formed in the bottoms of the first supporting element and the connecting beam and are bolt holes, clamping grooves with semicircular cross sections are formed in the side walls of the bottoms of the through holes of the first supporting element, the clamping grooves correspond to the clamping beads (6) one to one, the fastening bolts (5) sequentially penetrate through holes in the first supporting element and the through holes in the connecting beam, the limiting bolts (7) are in threaded connection with the hollow cavities of the fastening bolts (5), and the clamping beads (6) are extruded to the bottoms of the limiting bolts (7) in the clamping grooves.
2. The beret beam support according to claim 1, characterized in that said beads (6) are provided in two groups, said two groups of beads (6) being symmetrically distributed about the longitudinal median line of said fastening bolt (5).
3. The beret beam support according to claim 2, wherein the connecting beam is an i-beam (3), and a lower flange plate of the i-beam (3) is disposed in the chute.
4. The beret beam support of claim 3, wherein the first and second support elements are height adjustable.
5. The Bailey beam bracket according to claim 4, wherein the first supporting element comprises a supporting upright post (1), an adjusting post (2), a limiting post (13) and a rotating disc (15), the supporting upright post (1) is a hollow structure with a closed bottom, the limiting post (13) is connected to the bottom of the inner cavity of the supporting upright post (1), one end of the adjusting post (2) is provided with a sliding groove (21) extending along the axial direction, the top of the limiting post (13) is arranged in the sliding groove (21), one end of the adjusting post (2) provided with the sliding groove (21) is located in the inner cavity of the supporting upright post (1), the adjusting post (2) is suitable for sliding relatively along the sliding groove (21) relative to the limiting post (13), the rotating disc (15) is a tubular body, and the rotating disc (15) is in threaded connection with the outer wall of the top of the adjusting post (2), the rotary table (15) is arranged at the top of the supporting upright post (1), the bottom of the rotary table (15) is in contact with the top of the supporting upright post (1), the rotary table (15) is suitable for rotating relative to the supporting upright post (1), the sliding groove at the top of the first supporting element is formed in the top of the adjusting post (2), and the clamping groove is formed in the position of the adjusting post (2) corresponding to the bottom of the fastening bolt (5).
6. The Bailey beam support according to claim 5, further comprising a connecting block (14), wherein the connecting block (14) is an annular body, an annular mounting groove adapted to the connecting block (14) is formed at the top of the supporting upright (1), and the connecting block (14) is arranged in the mounting groove.
7. The Bailey beam bracket according to claim 6, wherein the Bailey frame unit comprises a Bailey frame body (4), a pair of sliding blocks (8), a pair of clamping blocks (9), a sliding block locking device and a sliding block adjusting device, the Bailey frame body (4) is arranged on an upper flange plate of the I-steel (3), the pair of sliding blocks (8) is suitable for sliding relative to the upper flange plate of the I-steel, the pair of sliding blocks (8) are respectively positioned at two sides of the Bailey frame body (4), the pair of clamping blocks (9) are respectively connected onto one sliding block (8), the clamping blocks (9) and the sliding blocks (8) connected with the clamping blocks (9) move synchronously, the clamping blocks (9) are used for clamping on the Bailey frame body (4), the sliding block adjusting device is connected between the pair of sliding blocks (8), and the sliding block adjusting device is used for driving the pair of sliding blocks (8) to move in the same direction or opposite directions, the sliding block locking device is connected between the sliding block (8) and the upper flange plate of the I-shaped steel (3).
8. The bailey beam support of claim 7, wherein the slider locking means are bolts connected between the slider (8) and the i-steel (3).
9. The beret beam support according to claim 8, characterized in that the slider adjusting device comprises a screw rod (11), the thread on the surface of the screw rod (11) is divided into two parts at the position corresponding to the longitudinal middle line of the beret frame (4), the thread directions of the two parts are opposite, and the two ends of the screw rod (11) are respectively connected to one slider (8) in a threaded manner.
10. The beret beam support according to claim 9, further comprising two butt lugs (10), one of which is connected to one of the sliders (8), the connection of the lead screw (11) to the slider (8) being located on the butt lug (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210360058.1A CN114737466A (en) | 2022-04-07 | 2022-04-07 | Bailey beam support |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210360058.1A CN114737466A (en) | 2022-04-07 | 2022-04-07 | Bailey beam support |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114737466A true CN114737466A (en) | 2022-07-12 |
Family
ID=82279061
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210360058.1A Pending CN114737466A (en) | 2022-04-07 | 2022-04-07 | Bailey beam support |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114737466A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017045223A1 (en) * | 2015-09-18 | 2017-03-23 | 河海大学 | Prefabricated pier column member with steel-concrete composite structure |
| CN207176510U (en) * | 2017-08-16 | 2018-04-03 | 黎汉岩 | A kind of convenient working bracket component of bridge |
| CN109881583A (en) * | 2019-02-25 | 2019-06-14 | 中交上海航道局有限公司 | A kind of holder jacking of adjustable tilt angle |
| CN211006346U (en) * | 2019-07-29 | 2020-07-14 | 南昌大学 | Cast-in-place support of side span of dismouting of being convenient for suitable for bridge |
| CN214272727U (en) * | 2020-12-31 | 2021-09-24 | 惠州市森林装饰材料有限公司 | Stable part convenient for plate installation |
-
2022
- 2022-04-07 CN CN202210360058.1A patent/CN114737466A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017045223A1 (en) * | 2015-09-18 | 2017-03-23 | 河海大学 | Prefabricated pier column member with steel-concrete composite structure |
| CN207176510U (en) * | 2017-08-16 | 2018-04-03 | 黎汉岩 | A kind of convenient working bracket component of bridge |
| CN109881583A (en) * | 2019-02-25 | 2019-06-14 | 中交上海航道局有限公司 | A kind of holder jacking of adjustable tilt angle |
| CN211006346U (en) * | 2019-07-29 | 2020-07-14 | 南昌大学 | Cast-in-place support of side span of dismouting of being convenient for suitable for bridge |
| CN214272727U (en) * | 2020-12-31 | 2021-09-24 | 惠州市森林装饰材料有限公司 | Stable part convenient for plate installation |
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Application publication date: 20220712 |