Assembly for a locking device

Abstract

The present invention relates to an assembly for a locking device with anti-rotational lock, which comprises a bolt having an elongate body with a distal end, a proximal end and an intermediate portion, wherein the intermediate portion has an external surface with an anti-rotation function, the distal end comprises a head, and the proximal end comprises a tip; a receiving element comprising a central hole that runs along the longitudinal axis of same, the internal surface of the hole being designed to accommodate at least the proximal end and part of the intermediate portion of the bolt; a fastening element located inside the hole of the receiving element and a cover designed to accommodate the receiving element together with a fastening element, the cover comprising a hole in the upper face thereof, designed to allow the entry of the bolt and to couple to the external surface with anti-rotation function of the intermediate portion of the bolt, such that same is prevented from rotating, wherein the bolt comprises a first annular slot between the head and intermediate portion of same, designed to concentrate forces, and a second annular slot located between the tip and intermediate portion of the bolt, designed to couple to the fastening element and thus prevent the bolt from being removed from receiving element.

Description

CLOSURE DEVICE ASSEMBLY Technical field of the invention

[0001] The present invention relates to anti-rotation locking devices and, specifically, to an assembly for an anti-rotation locking device to prevent access to electric power meters. Background of the invention

[0002] To measure electricity consumption, energy distribution companies install watt-hour meters, commonly known as electricity meters, near the property they serve. These meters provide information on energy consumption over a specific period, allowing them to bill for contracted services. However, these meters can be tampered with to alter the readings and produce a different value in order to pay for lower consumption, which negatively impacts the electricity distribution companies.

[0003] To prevent tampering with electricity meters, security rings have been developed. These rings are placed over the meters, with both the meter and the ring embedded in a wall. Each ring is open at both ends, which are joined by a locking device. However, these locking devices are susceptible to manipulation. For example, a drill can be used to generate high-speed rotation and wear down the parts that secure the lock. This allows the lock to be removed without breaking it completely, or only partially broken, so it can be replaced without leaving any visible evidence that the locking device has been tampered with.

[0004] In the prior art, various types of locking devices for closing a safety ring are known, attempting to solve the aforementioned problem. Patent application WO 02 / 05613 A2 presents a bolt seal that It comprises a thickened pin behind its tip, preferably in the form of a plastic sleeve whose front end is configured in the form of a crown; a bolt seal housing is also provided with a crown enclosing the opening through which the pin tip is inserted; where, when the pin and housing are inserted into one another, the tips of the crowns mesh with each other, thereby rotating the pin to a defined position under limited guidance and driving it fully into this position within the housing; the crowns serve as protection against torsion of the bolt seal and thus considerably complicate attempts to manipulate the seal; likewise, the pin comprises a groove, which is embraced by a ring-shaped retaining element disposed in the housing to prevent the bolt from being axially removed.The intent of this design is that any attempt at tampering will result in the destruction of the crowns, thus providing clear evidence of any manipulation. However, manufacturing the crowns can be complex and expensive, and tampering is not readily apparent when the device is handled carefully. Furthermore, the retaining element is easily removable from the casing, facilitating manipulation and opening.

[0005] Mexican patents MX 345816 and MX 386671 describe an apparatus and method for securing a box cover to a watt-hour meter junction box, including a ring and a connecting member comprising a fastening member comprising a fastener body portion forming a head section and a shaft section, wherein the shaft section forms an open end and the fastener body portion comprises an inner fastener surface defining a cavity extending axially from the open end and into at least the shaft section, wherein the outer surface of the shaft section forms a threaded member and a receiving member comprising an inner surface defining a receiving groove adapted to thread the threaded member of the shaft section.However, this device, being threaded, is unreliable, as it is easy to unscrew and screw the device back on without leaving any evidence of tampering.

[0006] Additionally, all the solutions proposed above feature a bolt or rod with a perfectly round surface, which can be rotated, which allows the bolt or rod to be slid in for removal by turning it.

[0007] Utility model CN201788625 U describes a disposable closure comprising a locking sleeve and a locking rod, wherein the locking sleeve comprises a locking sleeve housing and a cone-shaped bore is axially formed within the locking sleeve housing; a latch seat is disposed inside the cone-shaped bore; a through-hole is axially formed inside the latch seat; a latch groove penetrating the latch seat is axially formed in the wall of the through-hole; a latch is disposed in the latch groove; both the depth of the latch groove and the size of the latch groove formed in the wall of the through-hole are less than the diameter of the latch; a limit baffle is fixedly disposed at the end of the cone-shaped bore positioned in or adjacent to a larger bore;and a reset element for connecting the latch seat and the limit deflector is disposed between the latch seat and the limit deflector; a locking rod comprising a rod body and a rod cap located at the lower end of the rod body, wherein a clamping groove is formed at the front end of the rod body; and a clamping fit is formed between the latch within the latch groove and the clamping groove formed at the front end of the rod body. Although the configuration of said closure is quite complex and, given the configuration of the closure, it is possible that the locking sleeve prevents visualization of the rod breakage, so evidence of tampering would not be visible.

[0008] In the technical field of safety devices for electrical appliances, there are locking mechanisms comprising bolts with a surface worn to form a flat surface, which aligns with a pair of washers placed within a receiving element. This receiving element has a small transverse hole in its lower part, configured to receive a locking pin. The bolt also has a bore that receives the locking pin, preventing movement of the bolt. However, the manufacture of this solution is quite complex. complex and involves several intermediate operations, which increases production costs and times.

[0009] Additionally, the way in which bolts are secured to the receiving elements to prevent axial movement is generally achieved using a ring-shaped retaining / clamping element that hugs or surrounds a groove formed in the bolt body. This retaining element is easily removable from the receiver, which reduces the security of the closure for securing electrical devices.

[0010] Therefore, there remains a need to provide a solution that guarantees the safety of an electrical device, allows for the detection of its tampering, is simple and quick to manufacture, and has low production costs. Objects of the invention

[0011] It is an object of the present invention to provide a high-security locking device assembly having an anti-rotation locking function.

[0012] Another object of the present invention is that said assembly for closing device allows evidence of its manipulation, specifically, evidence of an attempt to open it through marks, deformations and detachments of parts thereof.

[0013] It is a further object of the present invention to provide a locking device assembly that is sufficiently robust to withstand accidental shocks, but which, when subjected to a certain torsional or axial force, suffers a fracture that demonstrates an attempt to open it.

[0014] It is also an object of the present invention to provide a locking device assembly that is easy to manufacture and involves low production costs. Brief description of the invention

[0015] The present invention describes a locking device assembly comprising: a bolt having an elongated body with a distal end, a proximal end, and an intermediate portion, wherein the intermediate portion has an external surface with an anti-rotation function, the distal end comprises a head, and the proximal end comprises a point; a receiving element comprising a central hole running along its longitudinal axis, the inner surface of which is configured to accommodate at least the proximal end and a portion of the intermediate portion of the bolt;a fastening element located within the hole of the receiving element, and a cover configured to house the receiving element together with the fastening element, which comprises a hole disposed in its upper face configured to allow the insertion of the bolt and wherein the hole is configured to engage with the external surface with an anti-rotation function of the intermediate portion of the bolt so as to prevent rotation thereof; wherein the bolt comprises a first annular groove located between the head and the intermediate portion thereof, configured to concentrate stresses and a second annular groove located between the tip and the intermediate portion of the bolt, configured to engage with the fastening element and thus prevent the bolt from being removed from the receiving element. Brief description of the figures

[0016] The novel aspects of the present invention will be set forth in detail in the claims. However, some of its features, characteristics, and advantages will be better understood in the detailed description set forth below, when read in conjunction with the accompanying figures, in which:

[0017] [Fig.1] Figure 1 illustrates an exploded view of a locking device assembly according to an embodiment of the present invention.

[0018] [Fig.2] Figure 2 illustrates a front view (a), top perspective view (b) and bottom perspective view (c) of a bolt of a locking device assembly according to an embodiment of the present invention.

[0019] [Fig.3] Figure 3 illustrates a front view (a), top perspective view (b) and bottom perspective view (c) of a bolt of a locking device assembly according to an embodiment of the present invention.

[0020] [Fig.4] Figure 4 illustrates a front view (a), top perspective view (b) and bottom perspective view (c) of a bolt of a locking device assembly according to an embodiment of the present invention.

[0021] [Fig.5] Figure 5 illustrates the symmetrical view of a fastening element of a closing device assembly according to an embodiment of the present invention.

[0022] [Fig.6] Figure 6 illustrates a top perspective view (a) and a bottom perspective view (b) of a receiving element with integrated clamping element of a closing device assembly according to an embodiment of the present invention.

[0023] [Fig.7] Figure 7 illustrates a top perspective view (a) and a bottom perspective view (b) of a receiving element with integrated clamping element of a closing device assembly according to an embodiment of the present invention.

[0024] [Fig.8] Figure 8 illustrates a bottom perspective view of a bolt assembly, fastening element and receiving element of a closing device assembly according to an embodiment of the present invention.

[0025] [Fig.9] Figure 9 illustrates a top perspective view of a cover for a locking device assembly according to an embodiment of the present invention.

[0026] [Fig.10] Figure 10 illustrates a bottom perspective view of a bolt assembly, fastening element and receiving element of a closing device assembly according to an embodiment of the present invention.

[0027] [Fig.11] Figure 11 illustrates a top perspective view of a cover for a locking device assembly according to an embodiment of the present invention.

[0028] [Fig.12] Figure 12 illustrates a bottom perspective view of a bolt assembly, fastening element and receiving element of a closing device assembly according to an embodiment of the present invention.

[0029] [Fig.13] Figure 13 illustrates a top perspective view of a cover for a locking device assembly according to an embodiment of the present invention. Detailed description of the invention

[0030] The present invention is described below with reference to the drawings, where similar reference numbers are used for similar elements throughout. In the following description, for explanatory purposes, several specific details are set out to provide a complete understanding of the invention. However, it is evident that the invention can be carried out without the need for such specific details. Several embodiments of the invention are discussed below. It should be noted that the figures are described for the sole purpose of facilitating the understanding of the description of the embodiments and are in no way intended to provide an exhaustive description of the invention or to limit its scope. Furthermore, an illustrated embodiment need not encompass all the aspects or advantages shown.Thus, in other modalities, any of the characteristics described in the different modalities of this description can be combined and fall within its scope.

[0031] In the context of the present invention, the terms “proximal” and “distal” are used to provide a spatial reference for the described bolt elements based on the relationship between said elements and a receiving element, as well as their orientation and distance when assembled, and should not be understood as limiting.

[0032] With reference to the present invention, a locking device assembly (1000) is presented that locks in an anti-rotation manner, the assembly comprising: a) a bolt (1100) having an elongated body with a distal end, a proximal end and an intermediate portion, wherein the intermediate portion has an external surface with an anti-rotation function (1120), the distal end comprises a head (1110) and the proximal end comprises a tip (1130).

[0033] Additionally, the bolt (1100) comprises a first annular groove (1140) located between its distal end and the intermediate portion, in particular between the head (1110) and the intermediate portion of the bolt (1100), which is configured to concentrate stresses and break when subjected to a tensile stress greater than a predetermined tensile stress, and a second annular groove (1150) located between the proximal end and the intermediate portion of the bolt, in particular between the tip (1130) and the intermediate portion of the bolt (1100); b) a receiving element (1200) comprising a central hole (1210) running along its longitudinal axis, the inner surface of which is configured to accommodate at least the proximal end and a portion of the intermediate portion of the bolt (1100);c) a fastening element (1300) located within the hole (1210) of the receiving element (1200) and configured so that a portion thereof engages with the second groove (1150) of the bolt (1100), acting as a stop and thus preventing the bolt (1100) from being removed from the receiving element (1200); d) a cover (1400) configured to house the receiving element (1200) together with the fastening element (1300), which comprises a hole (1410) disposed in its upper face, configured to allow the insertion of the bolt (1100) and to engage with the external surface with an anti-rotation function (1120) of the intermediate portion of the bolt (1100) so as to prevent its rotation.

[0034] Referring to Figure 1, the elements that make up the assembly for the closing device (1000) are illustrated in accordance with an embodiment of the present invention, where the order in which these are arranged for their operation is observed, placing the fastening element (1300) inside the receiving element (1200) and these in turn inside the cover (1400), and finally entering the bolt through the holes (1410, 1210) of the cover (1400) and the receiving element (1200) respectively, until the second annular groove (1150) engages with the fastening element (1300).

[0035] According to a preferred embodiment of the present invention, the locking device assembly (1000) provides a locking mechanism that functions as a type of padlock, preventing the separation of its components when the bolt (1110) is inserted through the cover (1400) and the receiving element (1200), engaging with the fastening element (1300). This “padlock” is used, without limitation, to close a protective ring or hoop placed over an electric energy meter, on square bases for medium-voltage meters, or in cabinets containing electric energy meters or other measuring and control instruments (not illustrated). Electric energy meters can be located on or embedded in a vertical, flat surface of a building, such as a wall, fence, or partition.

[0036] In order to prevent the opening or manipulation of a meter by an unauthorized person, a protective ring is placed, which can have various configurations, including, but not limited to, a ring comprising an opening and a pair of holes that allow the passage of a bolt to join the opening of the ring. In this way, the bolt (1110) is inserted through said holes and secured with the cover (1400) that houses the receiving element (1200) and the fastening element (1300), generating a closure with an anti-rotation lock and ensuring the opening or manipulation of the meter by an unauthorized person.

[0037] According to a further embodiment of the present invention, and as can be seen in Figures 2 to 4, the head (1110) of the bolt (1100) comprises a circular geometry with a cross-sectional area greater than the cross-sectional area of ​​the outer surfaces of the intermediate portion and the proximal end. Furthermore, according to a preferred embodiment of the present invention, the first and second annular grooves (1140, 1150) of the bolt have a cross-sectional area smaller than the cross-sectional areas of the remainder of the bolt (1000).

[0038] According to non-limiting embodiments of the invention, the first annular groove (1140) of the bolt (1000) has a smaller cross-sectional area than the second annular groove (1150) of the bolt (1000). In another embodiment of the invention, the first annular groove (1140) of the bolt (1000) has a larger cross-sectional area than the second annular groove (1150) of the bolt, and in another embodiment, the cross-sectional area of ​​both annular grooves, first and second (1140, 1150), is equal to one another.

[0039] Additionally, in accordance with a preferred embodiment of the present invention, and as illustrated in Figures 2 to 4, the tip (1121) of the bolt comprises a truncated cone geometry.

[0040] The design of the bolt (1100) of the locking device assembly (1000) of the present invention is configured to reveal unauthorized opening attempts, so that if an unauthorized person attempts to remove the bolt (1100) using a special tool, the first annular groove (1140) will concentrate the applied forces on the bolt (1100) and if a predetermined force is exceeded, it will cause breakage, preventing the bolt from being removed from the locking device assembly (1000) and leaving evidence of an attempted opening.

[0041] According to one embodiment of the present invention, the first annular groove (1140) of the bolt supports predetermined tensile stresses of between 49.50 N m and 50.50 N m, particularly preferably supporting a tensile stress of 50 N m.

[0042] In this way, it is ensured that the bolt cannot be turned and / or removed by simply using hand force and that, when using any tool, the attempt to open it is evidenced by the breaking of the second annular groove (1150).

[0043] The material from which the bolt (1100) is made is not particularly limited, so it can be made from a metal selected from the group consisting of cast iron and steel, preferably made from steel, and particularly preferably from Q235A type steel.

[0044] Now, in addition to demonstrating the attempt to open the assembly for the closing device (1000) of the present invention, the design of the bolt (1000) has the function of preventing it from rotating, which is achieved by means of the external surface with an anti-rotation function (1120) of its intermediate portion.

[0045] According to a non-limiting embodiment of the present invention, the external surface with anti-rotation function (1120) of the intermediate portion of the bolt (1100) consists of a surface with a particular geometry or a surface with at least one groove.

[0046] In connection with the above, and according to one embodiment of the present invention, the geometry of the external surface with anti-rotation function (1120) is a polygonal geometry.

[0047] In this sense, it should be understood that polygonal geometry refers to a geometry composed of a plurality of smooth surfaces and vertices, where the vertices coincide with the outer surface of the intermediate portion and the smooth surfaces are found between two adjacent vertices.

[0048] According to a further embodiment of the present invention, the geometry of the external surface with anti-rotation function comprises a polygonal geometry formed from a plurality of indentations and a plurality of vertices, wherein the vertices coincide with the outer surface of the intermediate portion, and the indentations are located between two adjacent vertices.

[0049] According to a non-limiting embodiment of the present invention, the geometry of the external surface with anti-rotation function (1120) of the intermediate portion of the bolt is a polygonal geometry that is selected from the group consisting of square, pentagonal, hexagonal, heptagonal and octagonal.

[0050] Referring to Figure 2, 3 views of a bolt (1100) are illustrated in accordance with a modality of the assembly for a locking device (1000) of the present invention, wherein the external surface with anti-rotation function (1120) corresponds to a hexagonal geometry composed of six smooth surfaces and vertices, wherein the vertices coincide with the outer surface of the intermediate portion and the smooth surfaces are located between two adjacent vertices.

[0051] Now, according to what is illustrated in Figure 3, 3 views of a bolt (1100) are shown in accordance with an additional embodiment of the assembly for a locking device (1000) of the present invention, wherein the external surface with an anti-rotation function (1120) corresponds to a hexagonal geometry composed of six grooves and vertices, wherein the vertices coincide with the outer surface of the intermediate portion and the grooves are located between two adjacent vertices.

[0052] In accordance with an additional embodiment of the locking device assembly (1000) of the present invention, and referring to Figure 4, in which 3 views of a bolt (1100) are illustrated, the geometry of the external surface with anti-rotation function (1120) of the intermediate portion of the bolt is a surface comprising at least one groove which may have various shapes, preferably a “V” shape.

[0053] Now, the assembly for a closing device (1000) of the present invention comprises a clamping element (1300), whose function is to hold the bolt (1100) to prevent it from being removed from the assembly (1000), which, in accordance with a preferred embodiment of the present invention, is formed from a wire capable of deforming (stretching / opening), thus allowing it to surround the second annular groove (1150) of the bolt (1100) and at the same time allow the passage of its tip (1130).

[0054] The geometry of the fastening element (1300) is not particularly limited and can be adapted to the needs of the bolt it will hold and the receiving element in which it will be housed. However, its geometry and / or design prevents its removal, thus limiting any manipulation prior to assembling the locking device. Referring to Figure 5, and in accordance with an advantageous embodiment of the present invention, the fastening element (1300) has a geometry in which its ends are at the same height, separated by a predetermined distance, acting as a kind of leg that will exert pressure upon entering the receiving element. The central part is at a higher height compared to these ends, forming a kind of recess through which the bolt enters and is secured by its second annular groove.This configuration prevents longitudinal movement of the bolt. to allow the removal of the fastening element from the receiving element, unlike prior art fastening means, which can be easily removed with the help of an everyday tool, for example, a screwdriver.

[0055] The locking device assembly (1000) according to the present invention comprises a receiving element (1200) whose function is to house the fastening element, the proximal end, and part of the intermediate portion of the bolt, preventing the latter from being removed from the cover by axial movement. The geometry of the receiving element (1200) is not particularly limited, provided that it can fit into the cover (1400) and accommodate the other elements of the assembly (1000). The receiving element (1200) comprises a hole (1210) that runs its entire height, on the inner surface of which the fastening element and part of the bolt are housed. To ensure that the fastening element cannot be removed, the receiving element comprises a first dimension on its lower portion, where the fastening element is positioned, and a smaller dimension on its upper portion, forming a kind of stop that prevents movement of the fastening element.Referring to Figure 6 (a, b), a receiving element (1200) of cylindrical geometry is illustrated, whose hole (1210) comprises an inner surface with the same geometry, but with a smaller diameter at the top and a larger one at the bottom, in which the clamping element (1300) is housed.

[0056] In order to prevent the rotation of the bolt (1100) within the locking device assembly (1000) and in accordance with a preferred embodiment of the present invention, the receiving element (1200) comprises a hole (1210), the inner surface of which has a portion comprising a geometry that coincides with that of the external surface with anti-rotation function (1120) of the intermediate portion of the bolt (1100), i.e., a square, pentagonal, hexagonal, heptagonal or octagonal geometry comprising smooth surfaces and vertices, or the flanges that engage with the grooves of said surface, i.e., a square, pentagonal, hexagonal, heptagonal or octagonal geometry comprising flanges and vertices, or a surface with at least one inverted “V” shaped flange, so as to prevent the rotation of the bolt (1100).

[0057] Furthermore, in accordance with a non-limiting embodiment of the present invention, the external surface of the receiving element (1200) comprises the same geometry as the external surface with anti-rotation function (1120) of the intermediate portion of the bolt (1100).

[0058] Now, referring to Figure 7 (a, b), a receiving element (1200) is illustrated according to a particular embodiment of the present invention, wherein the bolt (1100) to be housed comprises an external surface geometry with an anti-rotation function (1120) consisting of a hexagonal shape with smooth walls and vertices, such that the upper portion of the inner surface of the hole (1210) comprises the same geometry to engage with the intermediate portion of the bolt (1100) and prevent its rotation, while the lower portion comprises a larger cylindrical geometry to house the fastening element (1300). Likewise, said receiving element (1200) comprises a hexagonal geometry on its external surface.

[0059] According to a non-limiting embodiment of the present invention, the receiving element (1200) is made of materials selected from a metallic material or a plastic material, particularly preferably a metallic material, and even more preferably the same material from which the bolt (1100) is made.

[0060] Now, in order to provide protection to the assembly between the bolt (1100) and the receiving element (1200) with the fastening element (1300) and to prevent these from being tampered with, the assembly for the closing device (1000) of the present invention comprises a cover (1400), which extends from the tip (1130) of the bolt (1100), housed within the receiving element (1200) to before the first annular groove (1140) of the bolt (1100).

[0061] The cover (1400) is composed of a base or lower face, one or more surrounding walls and a top or upper face, which comprises a hole (1410) surrounding the middle portion of the bolt (1100).

[0062] In order to provide greater resistance to rotation by the bolt (1100), the hole (1410) in the upper face of the cover (1400) comprises a geometry that coincides with that of the external surface with anti-rotation function (1120) of the intermediate portion of the bolt (1100), i.e., a square, pentagonal, hexagonal, heptagonal or octagonal geometry comprising smooth surfaces and vertices, or the edges that fit with the indentations of said surface, i.e., a square, pentagonal, hexagonal, heptagonal or octagonal geometry comprising edges and vertices, or a surface with at least one inverted “V” shaped edge.

[0063] Figure 8 illustrates an assembly of bolt (1100), clamping element (1300) and receiving element (1200) in accordance with a modality of the assembly for a closing device (1000), wherein both the external surface with anti-rotation function (1120) of the bolt (1100), and the receiving element (1200) comprise a hexagonal geometry composed of smooth walls and vertices.

[0064] Figure 9 illustrates a cover configured for the modality of Figure 8, wherein the hole (1410) on the upper face of the cover (1400) comprises the same hexagonal geometry composed of smooth walls and vertices.

[0065] Figure 10 illustrates an assembly of bolt (1100), fastening element (1300) and receiving element (1200) in accordance with a modality of the assembly for a locking device (1000), wherein the external surface with anti-rotation function (1120) of the bolt (1100) comprises a V-shaped groove.

[0066] Figure 11 illustrates a cover configured for the modality of Figure 10, wherein the hole (1410) on the upper face of the cover (1400) comprises the same geometry with a “V” shaped indentation.

[0067] Figure 12 illustrates an assembly of bolt (1100), clamping element (1300) and receiving element (1200) in accordance with a modality of the assembly for a locking device (1000), wherein the external surface with anti-rotation function (1120) of the bolt (1100) comprises a hexagonal geometry composed of grooves and vertices.

[0068] Figure 13 illustrates a cover configured for the modality of Figure 12, wherein the hole (1410) on the upper face of the cover (1400) comprises the same hexagonal geometry composed of slits and vertices.

[0069] According to a non-limiting embodiment of the present invention, the cover (1400) is a transparent cover, particularly preferably made of a plastic material, even more preferably polycarbonate.

[0070] As can be seen from the description shown above, the locking device assembly provides advantages over devices known on the market, by providing elements or components of the assembly with functions that prevent the rotation of the bolt and in which any attempt at manipulation is clearly evident, having a resistant assembly, capable of providing security to any electrical installation and whose manufacture is simple and low cost.

[0071] The foregoing includes the best methods known to the applicant for carrying out the present invention; however, it does not specify all conceivable combinations of components or methodologies. A person skilled in the art will recognize that additional combinations and permutations of the claimed subject matter are possible. Accordingly, the claimed subject matter hereunder is intended to encompass such alterations, modifications, and variations that fall within the spirit and scope of the appended claims.

Claims

Claims

1. A closing device assembly (1000), characterized in that it comprises: - a bolt (1100) having an elongated body with a distal end, a proximal end and an intermediate portion, wherein the intermediate portion has an external surface with an anti-rotation function (1120), the distal end comprises a head (1110) and the proximal end comprises a tip (1130); - a receiving element (1200) comprising a central hole (1210) running along its longitudinal axis, and whose inner surface is configured to accommodate at least the proximal end and part of the intermediate portion of the bolt (1100); - a fastening element (1300) located within the hole (1210) of the receiving element (1200), and - a cover (1400) configured to house the receiving element (1200) together with the fastening element (1300), which comprises a hole (1410) disposed in its upper face, configured to allow the insertion of the bolt (1100) and to engage with the external surface with an anti-rotation function (1120) of the intermediate portion of the bolt (1100) so as to prevent its rotation; wherein the bolt (1100) comprises a first annular groove (1140) located between the head (1110) and the intermediate portion thereof, configured to concentrate stresses and a second annular groove (1150) located between the tip (1130) and the intermediate portion of the bolt (1100), configured to engage with the fastening element (1300) and thus prevent the bolt (1100) from being removed from the receiving element (1200).

2. The locking device assembly (1000) according to claim 1, further characterized in that the head (1110) of the bolt (1100) comprises a circular geometry with a cross-sectional area greater than the cross-sectional area of ​​the outer surfaces of the intermediate portion and the proximal end.

3. The locking device assembly (1000) according to any of the preceding claims, further characterized in that the first and second annular grooves (1140, 1150) have a smaller cross-sectional area than the cross-sectional areas of the remainder of the bolt (1100).

4. The locking device assembly (1000) according to claim 3, further characterized in that the first annular groove (1140) has a smaller cross-sectional area than the second annular groove (1150) of the bolt (1100).

5. The locking device assembly (1000) according to claim 3, further characterized in that the first annular groove (1140) has a larger cross-sectional area than the second annular groove (1150) of the bolt (1100).

6. The locking device assembly (1000) according to claim 3, further characterized in that the first annular groove (1140) and the second annular groove (1120) of the bolt (1100) have equal cross-sectional areas.

7. The assembly for a locking device (1000) according to any of the preceding claims, further characterized in that the tip (1130) of the bolt (1100) comprises a truncated cone geometry.

8. The locking device assembly (1000) according to any of the preceding claims, further characterized in that the first annular groove (1140) of the bolt (1100) withstands predetermined tensile stresses of between 49.50 N m and 50.50 N m.

9. The locking device assembly (1000) according to claim 8, further characterized in that the first annular groove (1140) of the bolt (1100) withstands a predetermined tensile stress of 50 N m.

10. The locking device assembly (1000) according to any of the preceding claims, further characterized in that the bolt (1100) is made of a metal selected from the group consisting of cast iron and steel.

11. The locking device assembly (1000) according to claim 10, further characterized in that the bolt (1100) is made of steel.

12. The assembly for locking device (1000) according to claim 11, further characterized in that the steel is type Q235A steel.

13. The locking device assembly (1000) according to any of the preceding claims, further characterized in that the external surface with anti-rotation function (1120) of the intermediate portion of the bolt (1100) consists of a surface with a particular geometry or a surface with at least one groove.

14. The locking device assembly (1000) according to claim 13, further characterized in that the geometry of the external surface with anti-rotation function (1120) of the intermediate portion of the bolt (1100) is a polygonal geometry.

15. The locking device assembly (1000) according to claim 13, further characterized in that the external surface with anti-rotation function (1120) of the intermediate portion of the bolt (1100) comprises a polygonal geometry formed from a plurality of grooves and a plurality of vertices, wherein the vertices coincide with the outer surface of the intermediate portion, and the grooves are located between two adjacent vertices.

16. The locking device assembly (1000) according to claim 14 or 15, further characterized in that the polygonal geometry of the external surface with anti-rotation function (1120) of the intermediate portion of the bolt (1100) is selected from the group consisting of square, pentagonal, hexagonal, heptagonal and octagonal.

17. The locking device assembly (1000) according to claim 13, further characterized in that the external surface with anti-rotation function (1120) of the intermediate portion of the bolt (1100) comprises at least one “V” shaped groove.

18. The closing device assembly (1000) according to any of the preceding claims, further characterized in that the fastening element (1300) is formed from a deformable wire.

19. The locking device assembly (1000) according to claim 18, further characterized in that the clamping element (1300) surrounds the second annular groove (1150) of the bolt (1100) and is secured within the receiving element (1200), preventing its removal.

20. The locking device assembly (1000) according to any of claims 13 to 19, further characterized in that the inner surface of the hole (1210) of the receiving element (1200) has a portion comprising a geometry that coincides with that of the external surface with anti-rotation function (1120) of the intermediate portion of the bolt (1100) or the flanges that engage with the grooves of said surface so as to prevent rotation of the bolt (1100).

21. The closing device assembly (1000) according to any of the preceding claims, further characterized in that the receiving element (1200) is made of materials selected from a metallic material or a plastic material.

22. The locking device assembly (1000) according to any of claims 13 to 21, further characterized in that the hole (1410) in the cover (1400) comprises a geometry that matches that of the external surface with anti-rotation function of the intermediate portion (1130) of the bolt (1100) or the flanges that engage with the grooves of said surface so as to prevent rotation of the bolt (1100).

23. The closing device assembly (1000) according to any of the preceding claims, further characterized in that the cover (1400) is a transparent cover.

24. The closing device assembly (1000) according to claim 23, further characterized in that the cover is made of a plastic material, preferably polycarbonate.

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