Cable grid bridge system

Abstract

The utility model discloses a cable grid bridge system comprising a turning bridge which is composed of a plurality of bridge units arranged in a divergent manner to form an inner arc structure and an outer arc structure. Each bridge unit comprises two parallel U-shaped wefts and a plurality of radial line units, each U-shaped weft is composed of an outer vertical beam, a bottom beam and an inner vertical beam, and each radial line unit comprises a bottom radial line unit, an outer diameter line unit and an inner diameter line unit which are respectively connected to different parts of the corresponding U-shaped weft; the outer diameter line units are connected to form a continuous bridge outer diameter line; the inner vertical beams of the adjacent bridge units abut against each other, the inner diameter line unit is provided with two ends, reinforcing ribs are welded between the bottom beams, a bridge bottom diameter line is formed, and therefore the turning bridge system is low in cost and convenient to manufacture.

Description

A cable mesh tray system Technical Field

[0001] This utility model relates to the manufacture of a cable mesh tray, and more particularly to a cable mesh tray system and manufacturing method. Background Technology

[0002] During the construction of mesh cable trays, right-angle turns are encountered; therefore, a turning structure for the mesh cable tray is required. Specifically, the turning structure of the mesh cable tray includes an arc-shaped outer edge, a bottom, and an arc-shaped inner edge; the bottom includes multiple radiating weft lines and multiple arc-shaped radial lines, with the radial lines in the same direction as the cable.

[0003] There are two solutions:

[0004] 1. Factory prefabrication: The fabrication of the bend structure of the mesh cable tray requires specialized equipment and molds. Since the number of bend structures is relatively small, the production cost is relatively higher.

[0005] 2. On-site construction: The end edges of two straight grid cable trays are cut off, resulting in two perpendicular grid cable trays that are joined together, with the joined parts overlapping vertically to support cables at bends. The disadvantages are: 1. On-site cutting is required, demanding higher skill levels from installation workers. 2. Material waste from the overlapping sections. Summary of the Invention

[0006] The technical problem to be solved by this utility model is to provide a low-cost, easy-to-manufacture cable mesh tray system with a turning structure and a manufacturing method thereof.

[0007] The technical solution of this utility model to solve the above-mentioned technical problems is as follows: a cable mesh bridge system, including a turning bridge, wherein the turning bridge includes a plurality of bridge units arranged in a divergent manner; the inner ends of the bridge units are close to each other and form an inner arc shape, and the outer ends of the bridge units are separated from each other and form an outer arc shape;

[0008] Each cable tray unit includes two parallel U-shaped latitude lines and multiple radial lines; the radial lines are connected in parallel between the two U-shaped latitude lines.

[0009] The U-shaped weft includes an outer vertical beam, a bottom beam, and an inner vertical beam; the multiple diameter units include multiple bottom diameter units, at least one outer diameter unit, and at least one inner diameter unit; the bottom diameter unit is connected between the bottom beams of two U-shaped wefts, the outer diameter unit is connected between the outer vertical beams of two U-shaped wefts, and the inner diameter unit is connected between the inner vertical beams of two U-shaped wefts;

[0010] Multiple cable tray units are interconnected to form the outer diameter wire of the cable tray; the outer diameter wire of the cable tray is a continuous metal wire;

[0011] The inner vertical beams of adjacent cable tray units are close together, and the inner diameter line unit of each cable tray unit has two first ends;

[0012] Multiple basically parallel reinforcing ribs are welded between the bottom beams of each adjacent cable tray; the reinforcing ribs are connected and transitioned to the corresponding bottom radial line unit of the cable tray unit with the same curvature to form the bottom radial line of the cable tray.

[0013] A further preferred embodiment of this invention is that each reinforcing rib has two second ends; each bottom radial unit has two third ends.

[0014] A further preferred embodiment of this utility model is as follows: the turning bridge includes two interfaces, and the distance between the two U-shaped latitude lines of the bridge unit where the two interfaces are located is greater than the distance between the two U-shaped latitude lines of other bridge units.

[0015] A further preferred embodiment of this utility model is that the bottom diameter unit and the inner diameter unit are straight lines; the outer diameter unit is arc-shaped.

[0016] A further preferred technical solution of this utility model is as follows: the area between adjacent cable tray units is a triangular area; the reinforcing ribs between the bottom beams of each adjacent cable tray unit are arc-shaped, and the length of multiple reinforcing ribs gradually shortens from the outside to the inside.

[0017] A further preferred embodiment of this utility model is that the outer diameter wire unit consists of two wires, and the inner diameter wire unit consists of two wires.

[0018] A further preferred embodiment of this utility model is: it also includes a straight cable tray that is connected to the turning cable tray; a fastening mechanism is connected between the two sides of the turning cable tray and the two sides of the straight cable tray.

[0019] Each fastening mechanism includes a metal strip and multiple locking mechanisms;

[0020] The metal strip has multiple mounting holes, and the locking mechanism includes a pressure block, a screw, and a nut.

[0021] The metal strip is located on the outer side of the cable tray; the pressure block presses on the inner side of the vertical beam on the side, and the screw passes through the mounting holes of the pressure block and the metal strip from the inside to the outside in sequence and is then tightened with a nut.

[0022] Another preferred subject: A method for manufacturing a cable mesh tray system: 1) Manufacturing a curved cable tray; 1.1) Preparing a straight cable tray, including multiple radial lines and multiple U-shaped weft lines; the U-shaped weft lines include outer vertical beams, bottom beams and inner vertical beams; the radial lines include the outer diameter line of the cable tray, the bottom diameter line of the cable tray and the inner diameter line of the cable tray;

[0023] 1.2) Cut the warp threads from the inner warp threads to the outer warp threads of the cable tray, leaving only the outer warp threads after cutting. This leaves N spaced notches and N+1 independent cable tray units on the straight cable tray, forming the cut cable tray. Each cable tray unit includes two parallel U-shaped parallel ...

[0024] 1.3) The cut cable tray is bent inward along the meridian direction to form a curved cable tray, which includes multiple cable tray units arranged in a divergent manner; the inner ends of the cable tray units are close to each other and form an inner arc, and the outer ends of the cable tray units are separated from each other and form an outer arc; the inner vertical beams of adjacent cable tray units are close to each other, and the inner diameter line unit of each cable tray unit has two first ends;

[0025] 1.4) Multiple basically parallel reinforcing ribs are welded between the bottom beams of each adjacent cable tray; the reinforcing ribs are connected to the bottom radial line unit corresponding to the cable tray unit and the curvature is consistent, so as to form the bottom radial line of the cable tray and complete the fabrication of the curved cable tray.

[0026] 2) Connect and fix the turning cable tray to the straight cable tray.

[0027] A further preferred technical solution of this utility model is: 2.1) A fastening mechanism is connected between the two sides of the turning bridge and the two sides of the straight bridge;

[0028] Each fastening mechanism includes a metal strip and multiple locking mechanisms;

[0029] The metal strip has multiple mounting holes, and the locking mechanism includes a pressure block, a screw, and a nut.

[0030] The metal strip is located on the outer side of the cable tray; the pressure block presses on the inner side of the vertical beam, and the screw passes through the mounting holes of the pressure block and the metal strip from the inside to the outside in sequence and is then tightened with a nut.

[0031] A further preferred technical solution of this utility model is as follows: 1.2.1) Cut off the inner diameter line and bottom diameter line between the second and third U-shaped weft lines, retaining the outer diameter line of the cable tray to form the first rectangular notch; cut off the inner diameter line and bottom diameter line between the fourth and fifth U-shaped weft lines, retaining the outer diameter line of the cable tray to form the second notch.

[0032] Compared with existing technologies, the advantages of this invention are: it uses mass-produced straight-line mesh cable trays as a base, and efficiently manufactures curved cable trays through processes such as cutting, bending, and welding. Compared with traditional factory-prefabricated custom-made curved cable trays, this solution does not require additional investment in expensive molds and specialized equipment. At the same time, mass-produced straight-line cable trays can reduce raw material procurement costs and equipment wear and tear during production, significantly reducing manufacturing costs.

[0033] Furthermore, the fabrication of the curved cable trays is completed in the production workshop, eliminating the need for complex cutting and welding operations on the construction site. Installation workers only need to connect the prefabricated curved cable trays to the straight cable trays using fastening mechanisms, which greatly reduces the skill requirements for installation workers and decreases construction time and labor intensity.

[0034] Furthermore, after the completion of the curved cable tray, multiple basically parallel reinforcing ribs are welded between the bottom beams of adjacent cable trays. These reinforcing ribs are seamlessly connected to the corresponding bottom diameter units of the cable tray units, maintaining a consistent curvature, thus forming the bottom diameter of the cable tray. This design not only enhances the structural strength of the bottom of the cable tray but also makes the cable tray more stable when bearing the weight of cables and external loads, effectively improving the load-bearing capacity and service life of the cable tray. Attached Figure Description

[0035] The present invention will be further described in detail below with reference to the accompanying drawings and preferred embodiments. However, those skilled in the art will understand that these drawings are drawn only for the purpose of explaining the preferred embodiments and therefore should not be construed as limiting the scope of the present invention. Furthermore, unless specifically indicated, the drawings are only schematic representations of the composition or structure of the described objects and may contain exaggerated depictions, and the drawings are not necessarily drawn to scale.

[0036] Figure 1 is a schematic diagram of a cable network tray system;

[0037] Figure 2 is a schematic diagram of the overall structure of the turning bridge;

[0038] Figure 3 is a schematic diagram of the overall structure of the turning bridge;

[0039] Figure 4 is a partial structural schematic diagram of a straight cable tray;

[0040] Figure 5 is a partial structural diagram of the cable tray after cutting;

[0041] Figure 6 is a schematic diagram of the turning bridge and fastening mechanism;

[0042] Figure 7 is a schematic diagram of the turning bridge and fastening mechanism (II).

[0043] Figure 8 is a partial enlarged view of point A in Figure 1 of this embodiment;

[0044] Figure 9 is a partial enlarged view of point B in Figure 1 of this embodiment. Detailed Implementation

[0045] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings. Those skilled in the art will appreciate that these descriptions are merely descriptive and exemplary and should not be construed as limiting the scope of protection of the present invention.

[0046] It should be noted that similar labels in the following figures indicate similar items; therefore, once an item is defined in one figure, it will not be further defined and explained in subsequent figures.

[0047] In the description of this utility model, it should be noted that the terms "upper," "lower," "front," "rear," "left," "right," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Similarly, "first" and "second" are only for ease of understanding and have no other directional meaning, and cannot be considered as limitations on this utility model.

[0048] As shown in Figures 1 to 3, a cable mesh tray system 100 has a core component of a turning cable tray 101. The turning cable tray 101 is composed of multiple cable tray units 10, which are arranged in a divergent pattern.

[0049] Specifically, the inner ends of the cable tray unit 10 are close to each other, forming an inner arc 13, while the outer ends are separated, forming an outer arc 14. This unique technical approach enables the turning cable tray 101 to adapt to the cable laying requirements at bends, while ensuring the overall stability and load-bearing capacity of the cable tray.

[0050] Each cable tray unit 10 consists of two parallel U-shaped weft beams 11 and multiple radial beam units 12. The U-shaped weft beams 11 are composed of an outer vertical beam a1, a bottom beam a2, and an inner vertical beam a3, forming a U-shaped frame structure. The radial beam units 12 are connected parallel to the two U-shaped weft beams 11, serving a supporting and fixing function. These radial beam units 12 include multiple bottom radial beam units b2, at least one outer radial beam unit b1, and at least one inner radial beam unit b3.

[0051] Specifically, the bottom diameter unit b2 is connected between the bottom beams a2 of the two U-shaped weft wires 11, the outer diameter unit b1 is connected between the outer vertical beams a1 of the two U-shaped weft wires, and the inner diameter unit b3 is connected between the inner vertical beams a3 of the two U-shaped weft wires 11. This technique not only optimizes the structure of the cable tray but also improves its load-bearing capacity.

[0052] To further enhance the structural strength and integrity of the curved cable tray, multiple cable tray units 10 are interconnected by their outer diameter line units b1, forming a continuous outer diameter line s1. This continuous outer diameter line design not only improves the load-bearing capacity of the cable tray but also makes the overall curved cable tray appearance neater and more aesthetically pleasing. Furthermore, the inner vertical beams a3 of adjacent cable tray units 10 are tightly packed together, ensuring a tight connection between the cable tray units. Each inner diameter line unit b3 of the cable tray unit 10 also has two first ends r1, which can be further processed or connected according to actual needs.

[0053] At the bottom of the cable tray, multiple basically parallel reinforcing ribs c are welded between the bottom beams a2 of adjacent cable tray units 10. These reinforcing ribs c are seamlessly connected to the corresponding bottom radial unit b2 of the cable tray unit 10, and their curvature remains consistent, thus forming the bottom radial line s2 of the cable tray. The design of the reinforcing ribs c not only enhances the structural strength of the bottom of the cable tray, but also makes the entire cable tray more stable when carrying cables, effectively distributing the weight of the cables and avoiding deformation or damage caused by excessive local stress.

[0054] With the above structural design, the cable mesh tray system 100 not only meets the cable laying requirements at bends, but also has high load-bearing capacity and structural stability. At the same time, it simplifies the construction process, reduces installation difficulty and cost, and is an efficient and practical cable laying solution.

[0055] Preferably, each reinforcing rib c has two second ends r2; each bottom radial element b2 has two third ends r3, with adjacent second ends r2 and third ends r3 connected in a continuous mating manner. The arrangement of the second ends r2 of the reinforcing rib c and the third ends r3 of the bottom radial element b2 provides a clear connection point for welding or other connection methods.

[0056] The turning cable tray 101 includes two interfaces 102 on both sides for connecting to adjacent cable trays. The distance between the two U-shaped weft threads 11 of the cable tray unit 10 containing the two interfaces 102 is greater than the distance between the two U-shaped weft threads 11 of other cable tray units 10. The wider bridging unit 10 provides more space at the interface, allowing for a more secure connection when the turning cable tray 101 connects to other cable trays (such as straight cable trays).

[0057] It should be noted that the bottom diameter unit b2 and the inner diameter unit b3 are straight lines; this ensures that the cable is laid flat at the bottom and inside of the cable tray, reducing cable friction and wear, while also ensuring cable stability. The outer diameter unit b1 is arc-shaped, which better accommodates the natural bending of the cable at bends.

[0058] Furthermore, the area between adjacent cable tray units 10 is a triangular region v. The triangular structure itself has extremely high stability, effectively distributing and transmitting loads, reducing deformation or damage caused by excessive local stress. The reinforcing ribs c between the bottom beams a2 of each adjacent cable tray unit 10 are arc-shaped, which can better adapt to the bending shape of the cable tray and provide more uniform support. Moreover, the length of multiple reinforcing ribs c gradually shortens from the outside to the inside. This design is to better adapt to the structural requirements when a straight cable tray is bent into a curved cable tray, ensuring uniform stress and structural stability in all parts during the bending process. This reinforcing rib design with varying lengths can perfectly match the bending shape of the cable tray, thereby forming a more reasonable mechanical distribution at the bend.

[0059] Meanwhile, the design of the triangular region v and the structure of the arc-shaped reinforcing rib c allow the cable tray to adapt more flexibly to different turning radii. This design not only enhances the structural strength of the cable tray at turns but also improves the overall flexibility and adaptability of the cable tray system, enabling it to better meet various complex laying scenarios.

[0060] Preferably, there are two outer diameter line units b1 and two inner diameter line units b3. The two outer diameter line units b1 significantly enhance the structural strength of the outer side of the cable tray. In the turning cable tray 101, the outer side bears greater tensile and bending stresses; the double outer diameter line unit design can better distribute and bear these stresses, thereby improving the overall stability of the cable tray. Furthermore, the two inner diameter line units b3 provide more stable support for the inner side of the cable tray. The inner side experiences greater pressure during turns; the double inner diameter line unit design can effectively distribute these pressures, preventing deformation or damage caused by excessive localized stress.

[0061] Furthermore, as shown in Figure 4, this technical solution also includes a straight cable tray 103 that connects to the turning cable tray 101. This technical means allows the turning cable tray 101 to be seamlessly connected to the straight cable tray 103, thereby enabling continuous cable laying in different directions and meeting complex cable layout requirements. As shown in Figures 6 and 7, fastening mechanisms 20 are connected between the two sides of the turning cable tray 101 and the two sides of the straight cable tray 103. The fastening mechanisms 20 are installed between the two sides of the turning cable tray 101 and the two sides of the straight cable tray 103. This technical means can effectively prevent the cable tray from loosening or shifting due to external forces during use.

[0062] As shown in Figures 8 and 9, each fastening mechanism 20 consists of a metal strip 21 and multiple locking mechanisms 22. The metal strip 21 is installed on the outer side of the cable tray and has multiple mounting holes 211 evenly distributed on it. These mounting holes 211 provide a precise installation position for the locking mechanisms 22.

[0063] Specifically, the locking mechanism 22 consists of a pressure block 221, a screw 222, and a nut 223. The pressure block 221 fits tightly against the inner side of the vertical beam on the side of the cable tray. The screw 222 passes sequentially through the mounting holes 211 on the pressure block 221 and the metal strip 21 from the inside, and is finally tightened by the nut 223. This structure not only ensures the stability of the connection but also facilitates installation and maintenance, making the entire cable tray system more reliable and efficient in practical applications.

[0064] In addition, the technical solution provides a method for manufacturing an efficient and low-cost cable mesh tray system, which is particularly suitable for manufacturing the curved cable tray 101 and connecting and fixing it to the straight cable tray 103. The following are the detailed manufacturing steps:

[0065] 1) Fabricate a curved cable tray 101, including the following steps: 1.1) Prepare a standard straight cable tray 103, which includes multiple radial lines 12' and multiple U-shaped longitudinal lines 11. Each U-shaped longitudinal line 11 consists of an outer vertical beam b1, a bottom beam b2, and an inner vertical beam b3. The radial lines 12' are further subdivided into outer diameter lines 121, bottom diameter lines 122, and inner diameter lines 123.

[0066] 1.2) Cut from the inner diameter line 123 of the cable tray towards the outer diameter line 121, retaining only the outer diameter line 121. After cutting, N spaced notches and N+1 independent cable tray units 10 will be formed on the straight cable tray 103. Each cable tray unit 10 includes two parallel U-shaped weft lines 11 and multiple radial line units 12, with the radial line units 12 connected in parallel between the two U-shaped weft lines 11.

[0067] In this step, to further optimize the cutting process, the following specific operations can be performed: Cut off the inner diameter line 123 and bottom diameter line 122 between the second and third U-shaped weft threads 11, retaining the outer diameter line 121 of the cable tray, forming the first rectangular notch 01. Cut off the inner diameter line 123 and bottom diameter line 122 between the fourth and fifth U-shaped weft threads 11, retaining the outer diameter line 121 of the cable tray, forming the second notch 02.

[0068] 1.3) The cut cable tray p is bent in the direction of the inner diameter line 123 to form a curved cable tray 101. The curved cable tray 101 is composed of multiple cable tray units 10 arranged in a divergent manner. The inner ends of the cable tray units 10 are close to each other and form an inner arc, while the outer ends are separated and form an outer arc. The inner vertical beams a3 of adjacent cable tray units 10 are close to each other, and the inner diameter line unit b3 of each cable tray unit 10 has two first ends r1.

[0069] 1.4) Multiple basically parallel reinforcing ribs c are welded between the bottom beams a2 of each adjacent cable tray unit 10. The reinforcing ribs c are continuously connected to the bottom radial line unit b2 of the corresponding cable tray unit 10 and maintain the same curvature to form the bottom radial line 122 of the cable tray. This design not only enhances the structural strength of the cable tray but also ensures the stability of the curved cable tray when bearing load.

[0070] 2) Connect and fix the turning cable tray 101 to the straight cable tray 103. The specific steps are as follows: 2.1) Connect the two sides of the turning cable tray 101 to the two sides of the straight cable tray 103 through the fastening mechanism 20. The specific technical means of the fastening mechanism 20 has been described above and will not be repeated here.

[0071] Preferably, in this embodiment, the mounting hole 211 is a laterally extending waist-shaped hole, and its lateral distance is greater than the size of the nut 223; so that the fixing position can be adjusted within the lateral range of the waist-shaped hole according to actual needs.

[0072] Moreover, the mounting holes 211 are evenly distributed on the metal strip 21.

[0073] Furthermore, the two sides of the pressure block 221 are bent inward at an angle to make the two sides of the pressure block 221 converge. The inward bending of the two sides of the pressure block 221 to form a converged shape can better cover the outer vertical beam a1 or the inner vertical beam a3. Moreover, this technical means allows the pressure block 221 to adapt to vertical beams of different sizes, and both the outer vertical beam a1 and the inner vertical beam a3 can be effectively covered and locked.

[0074] The locking mechanism 22 has an outer vertical beam a1 at the fixed connection point. The pressure block 221 bends inward at a certain angle on both sides and is in a contracted shape. After locking, a receiving area can be formed between the pressure block 221 and the metal strip 22. After locking, the outer vertical beam a1 or the inner vertical beam a3 can be properly covered and locked in the receiving area, which is very suitable and secure.

[0075] This invention introduces a clothes drying rack capable of generating high-speed drying airflow. Specific examples are used to illustrate the principles and implementation methods of this invention. The descriptions of the embodiments are merely for the purpose of helping to understand this invention and its core concepts. It should be noted that those skilled in the art can make various improvements and modifications to this invention without departing from its principles, and these improvements and modifications also fall within the protection scope of the claims of this invention.

Claims

1. A cable mesh tray system, characterized in that: The cable tray includes a turning cable tray comprising multiple cable tray units arranged in a divergent pattern. The inner ends of each cable tray unit are close together and form an inner arc, while the outer ends of each cable tray unit are separated and form an outer arc. Each cable tray unit includes two parallel U-shaped parallel ... Between the outer diameter line units, the outer diameter line units are connected between the outer vertical beams of the two U-shaped weft lines, and the inner diameter line units are connected between the inner vertical beams of the two U-shaped weft lines; the outer diameter line units of multiple cable tray units are interconnected to form the outer diameter line of the cable tray; the outer diameter line of the cable tray is a continuous metal wire; the inner vertical beams of adjacent cable tray units are close to each other, and the inner diameter line unit of each cable tray unit has two first ends; multiple basically parallel reinforcing ribs are welded between the bottom beams of each adjacent cable tray; the reinforcing ribs are connected to the corresponding bottom diameter line units of the cable tray units and the curvature is consistent to form the bottom diameter line of the cable tray.

2. The cable mesh tray system according to claim 1, characterized in that: Each reinforcing rib has two second ends; each bottom radial element has two third ends.

3. The cable mesh tray system according to claim 1, characterized in that: The turning cable tray includes two interfaces, and the distance between the two U-shaped latitude lines of the cable tray unit where the two interfaces are located is greater than the distance between the two U-shaped latitude lines of other cable tray units.

4. The cable mesh tray system according to claim 1, characterized in that: The bottom diameter unit and the inner diameter unit are straight lines; the outer diameter unit is arc-shaped.

5. The cable mesh tray system according to claim 1, characterized in that: The area between adjacent cable tray units is a triangular area; the reinforcing ribs between the bottom beams of each adjacent cable tray unit are arc-shaped, and the length of multiple reinforcing ribs gradually decreases from the outside to the inside.

6. The cable mesh tray system according to claim 1, characterized in that: The outer diameter wire unit consists of two wires, and the inner diameter wire unit consists of two wires.

7. The cable mesh tray system according to claim 1, characterized in that: It also includes a straight cable tray that connects to the turning cable tray; fastening mechanisms are connected between the two sides of the turning cable tray and the two sides of the straight cable tray for fixed connection.

8. The cable mesh tray system according to claim 7, characterized in that: Each fastening mechanism includes a metal strip and multiple locking mechanisms; the metal strip has multiple mounting holes distributed on it, and the locking mechanism includes a pressure block, a screw, and a nut; the metal strip is located on the outer side of the side of the cable tray; the pressure block presses against the inner side of the vertical beam on the side, and the screw passes through the mounting holes of the pressure block and the metal strip from the inside out in sequence before being tightened with a nut.

9. The cable mesh tray system according to claim 8, characterized in that: The mounting holes are laterally extending oblong holes, and the lateral distance between the oblong holes is greater than the size of the nut; the mounting holes are evenly distributed on the metal strip.

10. The cable mesh tray system according to claim 8, characterized in that: The two sides of the pressure block are bent inward at an angle so that the two sides of the pressure block are folded together.

Images