Assembly type manhole for cable

Abstract

The present invention relates to a prefabricated manhole for cables, and more specifically, to a prefabricated manhole for cables that is installed by being buried underground to prevent breakage and damage to electrical and communication cables, and which allows the components of the manhole body to be manufactured using a single mold. A prefabricated manhole for cables according to the present invention is a manhole installed at a branch point and connection point of a cable buried underground, and comprises: a manhole body (100) formed by assembling assembly blocks (110) in a square shape with open top and bottom ends, wherein an opening (120) in the middle is formed in a 'U' shape, a first corner connecting part (130) is formed on one side so as to be connected to the other side of another assembly block at a right angle to each other, and a second corner connecting part (140) is formed on the other side so as to be connected to one side of another assembly block at a right angle to each other; a bottom plate (200) coupled to the bottom of the manhole body (100); a frame-shaped fixed frame (300) fitted and coupled to the top of the manhole body (100); and a manhole cover (400) coupled to the top of the fixed frame (300) so as to be openable and closable, and equipped with a plurality of handles (410).

Description

Technology Field

[0001] The present invention relates to a prefabricated manhole for cables, and more specifically, to a prefabricated manhole for cables that is installed by being buried underground to prevent breakage and damage to electrical and communication cables, and which allows the components of the manhole body to be manufactured using a single mold. Background Technology

[0002] Generally, electrical and communication cables are buried underground because being located above ground detracts from the aesthetics and poses a risk of disconnection due to underground structures.

[0003] At this time, manholes are installed at the branching points and connection points of the cables buried underground.

[0004] In conventional manholes, the work is completed by pouring concrete into a formwork and then installing a cable.

[0005] To elaborate, soil is excavated to an appropriate depth at the location where the manhole is to be installed along the cable track, a formwork is constructed according to specifications, concrete is poured into the formwork and allowed to harden for an appropriate period, the formwork is removed, soil is backfilled around the manhole formed by the concrete, and the work is completed by connecting the cable inside the manhole.

[0006] Conventional manholes constructed in this manner require the fabrication of formwork following concrete pouring, and depending on the installation location, it is difficult to transport and cure the required concrete. Additionally, the poured concrete must be hardened for a long time, and incidental work such as removing the formwork and backfilling must be performed. Consequently, there are problems in that the construction work is not only complex and difficult but also requires high installation costs and a large amount of time.

[0007] An example of a technology for solving the above-mentioned problem is disclosed in the following document 1.

[0008] Patent Document 1 describes a manhole box installed at a branching point or connection point of a communication cable and an electrical cable, comprising: a front and rear plate having multiple cutouts of different sizes and shapes formed around the perimeter to allow a protective tube to be inserted, a protruding catch projection formed at the inner bottom, and upper and lower connecting protrusions formed on both sides; left and right side plates having the cutouts and cutout grooves formed identically to those formed on the front and rear plates, connecting grooves formed on both sides into which the connecting protrusions are fitted, and a catch projection formed at the inner bottom; a square-shaped lower plate inserted into the lower portion when the front and rear plates and the left and right side plates are combined in a square shape, which rests on a catch projection formed at the inner bottom to support the lower portion from external forces; and a square-shaped binding frame fitted at the top to bind the front and rear plates and the left and right side plates combined in a square shape to maintain fixing force. A prefabricated manhole box for telecommunications is disclosed, characterized by comprising: an upper lid having a square frame formed on the lower side to prevent movement when placed on the aforementioned binding frame, and a handle for opening and closing.

[0009] However, the conventional technology described above has the problem that when producing front and back plates and left and right side plates separately, molding dies must be produced for each front and back plate and left and right side plate, which leads to an increase in the manufacturing cost of mass-produced products due to excessive expenditure on mold production, and consequently reduces the price competitiveness of the products. Prior art literature

[0010] Republic of Korea Registered Utility Model Publication No. 20-0170000 (Published on Feb. 1, 2000) The problem to be solved

[0011] The present invention was devised to solve the problems described above, and aims to provide a prefabricated manhole for cables that can reduce mold manufacturing costs and product manufacturing costs by producing multiple manhole body components using a single mold. means of solving the problem

[0012] To achieve the above objective, the prefabricated manhole for cables according to the present invention is a manhole installed at a branch point and connection point of a cable buried underground, and comprises: a manhole body (100) formed by assembling assembly blocks (110) in a square shape with open top and bottom ends, wherein an ‘U’-shaped opening (120) is formed in the middle, a first corner connecting part (130) is formed on one side so as to be connected to the other side of another assembly block at a right angle to each other, and a second corner connecting part (140) is formed on the other side so as to be connected to one side of another assembly block at a right angle to each other; a bottom plate (200) coupled to the bottom of the manhole body (100); a frame-shaped fixed frame (300) fitted and coupled to the top of the manhole body (100); and a manhole cover (400) coupled to the top of the fixed frame (300) so as to be openable and closable, and equipped with a plurality of handles (410).

[0013] Additionally, an opening / closing plate (500) is coupled to the opening (120) to enable opening and closing, and the opening / closing plate (500) is characterized by being composed of a ‘U’-shaped shielding part (510) and a ‘C’-shaped reinforcing part (520) extending upward from the top of the shielding part (510).

[0014] Additionally, the first corner connecting part (130) is characterized by including: a straight connecting projection (131) protruding to one side by a predetermined length; and a first supporting block (132) integrally extended on one side of the connecting projection (131) with a width wider than that of the connecting projection (131).

[0015] In addition, the above connecting projection (131) is ' ',' It is characterized by being one of the forms.

[0016] Additionally, the second corner connecting part (140) is characterized by being composed of a second supporting block (141) that is recessed to a predetermined length so that the first corner connecting part (130) of another assembly block (110) can be connected, and has a connecting groove (142) formed in a direction perpendicular to the connecting projection (131) of the first corner connecting part (130).

[0017] In addition, the coupling groove (142) is ' ',' It is characterized by being one of the forms.

[0018] In addition, the outer surface of the manhole body (100) is characterized by having a 'U'-shaped reinforcing frame (600) installed.

[0019] In addition, the assembly block (110) is characterized by having a plurality of pipe connectors (150) formed vertically through it to connect various protective pipes, and a plurality of cut grooves (151) of different sizes formed in the pipe connectors (150). Effects of the invention

[0020] As described above, the prefabricated manhole for cables according to the present invention has the effect of reducing mold manufacturing costs and product manufacturing costs by producing a plurality of manhole body components with a single mold. Brief explanation of the drawing

[0021] FIG. 1 is a perspective view illustrating a prefabricated manhole for cables according to the present invention. FIG. 2 is an exploded perspective view illustrating a prefabricated manhole for cables according to the present invention. FIG. 3 is a front view illustrating a prefabricated manhole for cables according to the present invention. FIG. 4 is a perspective view illustrating an assembly block of a prefabricated manhole for cables according to the present invention. FIG. 5 is a perspective view illustrating another embodiment of an assembly block in a prefabricated manhole for cables according to the present invention. Specific details for implementing the invention

[0022] Hereinafter, the most preferred embodiment of the present invention is described in detail so that a person skilled in the art to which the present invention pertains can easily practice the present invention.

[0023] As illustrated in FIGS. 1 to 3, the prefabricated manhole for cables according to the present invention is installed at the branching point and connection point of a cable buried underground, and includes a manhole body (100), a bottom plate (200), a fixed frame (300), and a manhole cover (400).

[0024] The above manhole body (100) is constructed by assembling a plurality of assembly blocks (110) into a square shape with the top and bottom open.

[0025] A 'U'-shaped opening (120) is formed in the middle of the assembly block (110). Through this opening (120), contact with the cable is minimized when the cable is mounted, thereby preventing damage to the cable due to friction, and frictional resistance is significantly reduced during the traction process for mounting the cable, thus preventing damage to the cable caused by excessive traction force.

[0026] Meanwhile, an opening / closing plate (500) is attached to the opening (120) so that it can be opened and closed.

[0027] The above opening / closing plate (500) is opened when the cable is mounted and closed after the cable is mounted.

[0028] The above-mentioned opening / closing plate (500) consists of a 'U'-shaped shielding part (510) and a 'C'-shaped reinforcing part (520) extending upward from the top of the shielding part (510). The shielding part (510) may be partially cut to fit the shape of an electrical and communication cable.

[0029] In this way, according to the structure in which the opening (120) is opened and closed by the above-mentioned opening / closing plate (500), the installation and mounting of the cable is easy, and the opening (120) can be easily closed after the work is completed.

[0030] As shown in FIGS. 2 to 5, a first corner connecting part (130) is formed on one side of the assembly block (110) and connected to the other side of another assembly block at a right angle to each other.

[0031] In addition, a second corner connecting part (140) is formed on the other side of the assembly block (110) to be connected to one side of another assembly block at a right angle to each other.

[0032] The first corner connecting part (130) includes a straight connecting projection (131) that protrudes to one side by a predetermined length, and a first supporting block (132) that extends integrally from one side of the connecting projection (131) with a width wider than that of the connecting projection (131). This first corner connecting part (130) is ' It is formed in the form of '

[0033] The above connecting projection (131) is ' ', It is desirable to have one of the forms.

[0034] The first support block (132) is in close contact with the inner surface of the second support block (141) formed in the second corner connection part (140) of another assembly block to form one corner part of the manhole body (100).

[0035] The second corner connecting part (140) is composed of a second support block (141) that is recessed to a predetermined length so that the first corner connecting part (130) of another assembly block (110) can be connected, and has a connecting groove (142) formed in a direction perpendicular to the connecting projection (131) of the first corner connecting part (130). This second corner connecting part (140) is ' It is formed in the form of '

[0036] The above coupling groove (142) is ' ',' It is desirable to have one of the forms.

[0037] The second support block (141) is in close contact with the first support block (132) formed at the first corner connection part (130) of another assembly block to form one corner part of the manhole body (100).

[0038] The assembly blocks (110) configured in this manner can increase bonding strength and strength by joining multiple adjacent blocks together. For example, a first corner connecting part (130) is formed on one side of the assembly block (110), and a second corner connecting part (140) is formed on the other side, so that adjacent assembly blocks (110) are joined together through the first corner connecting part (130) and the second corner connecting part (140).

[0039] Therefore, the present invention can reduce mold manufacturing costs and product manufacturing costs by manufacturing the assembly block (110) with a single mold.

[0040] As shown in FIGS. 1 to 3, a plurality of pipe connectors (150) are formed vertically through the assembly block (110) to connect various protective tubes, and a plurality of cut grooves (151) of different sizes are formed in the pipe connectors (150).

[0041] That is, the above pipe connector (150) can be connected to a protective pipe of various sizes and shapes by forming an incision groove (151), and when a protective pipe is to be connected to the above pipe connector (150), the incision groove (151) is struck with a tool such as a hammer to match the thickness of the protective pipe, thereby connecting the protective pipe to be constructed.

[0042] As shown in FIGS. 1 and 2, a 'U'-shaped reinforcing frame (600) is installed on the outer surface of the manhole body (100) to surround the outer surface of the manhole body (100). The reinforcing frame (600) is fixed to the manhole body (100) using bolts or the like.

[0043] Therefore, due to the installation of the reinforcing frame (600), the support strength against external pressure is significantly increased, so that deformation or damage to the manhole can be prevented even when external pressure occurs.

[0044] As shown in FIGS. 1 and 2, the bottom plate (200) is coupled to the lower part of the manhole body (100).

[0045] The above-mentioned bottom plate (200) is a member installed on the ground excavated from the ground and is made of a square-shaped plate member.

[0046] As shown in FIGS. 1 and 2, the fixed frame (300) is formed in the shape of a square frame and is fitted and coupled to the top of the manhole body (100).

[0047] A step (310) is formed on the inner circumference of the fixed frame (300), and a manhole cover (400) is seated on the step (310).

[0048] A manhole cover (400) is attached to the upper part of the fixed frame (300) to prevent rainwater, etc. from flowing into the manhole.

[0049] A plurality of fastening holes (320) for bolt fastening are formed around the perimeter of the fixed frame (300).

[0050] As shown in FIGS. 1 and 2, the manhole cover (400) is connected to the upper part of the fixed frame (300) in a way that allows it to be opened and closed, and is provided with a plurality of handles (410).

[0051] A fixing frame (420) is formed at the lower part of the manhole cover (400) and is secured by being seated on the step (310) of the fixing frame (300).

[0052] Although the present invention has been described with reference to preferred embodiments with reference to the accompanying drawings, it is evident to those skilled in the art that various modifications are possible from this description without departing from the scope of the invention. Accordingly, the scope of the invention should be interpreted by the claims described to include examples of such many modifications. Explanation of the symbols

[0053] 100 : Manhole body 110 : Assembly Blocks 120 : Opening 130: 1st corner connection 131 : Connecting protrusion 132 : 1st support block 140 : Second corner connection 141 : Second support block 142 : Connecting groove 150 : Pipe connector 151 : Incision groove 200 : Bottom plate 300 : Fixed frame 310 : Step 320 : Fastener 400 : Manhole cover 410 : Handle 420 : Fixed frame 500 : Opening / closing plate 510 : Shielding part 520 : Reinforcement part 600 : Reinforcement frame

Claims

Claim 1 A cable assembly manhole installed at a branch point and connection point of a cable buried underground, comprising: a manhole body (100) formed by assembling assembly blocks (110) in a square shape with open top and bottom ends, wherein a ‘U’-shaped opening (120) is formed in the middle, a first corner connecting part (130) is formed on one side so as to be connected to the other side of another assembly block at a right angle to each other, and a second corner connecting part (140) is formed on the other side so as to be connected to the one side of another assembly block at a right angle to each other; a bottom plate (200) coupled to the bottom of the manhole body (100); a frame-shaped fixed frame (300) fitted and coupled to the top of the manhole body (100); and a manhole cover (400) coupled to the top of the fixed frame (300) so as to be openable and closable, and equipped with a plurality of handles (410). Claim 2 A prefabricated manhole for cables according to claim 1, wherein an opening plate (500) is coupled to the opening (120) so as to be openable and closable, and the opening plate (500) is composed of a ‘U’-shaped shielding part (510) and a ‘C’-shaped reinforcing part (520) extending upward from the top of the shielding part (510). Claim 3 A prefabricated manhole for cables according to claim 1, wherein the first corner connecting part (130) comprises: a straight connecting projection (131) protruding to one side by a predetermined length; and a first support block (132) integrally extended on one side of the connecting projection (131) with a width wider than that of the connecting projection (131). Claim 4 In claim 3, the coupling projection (131) is ' ',' A prefabricated manhole for cables characterized by being one of the following shapes. Claim 5 A prefabricated manhole for cables according to claim 1, wherein the second corner connecting part (140) is composed of a second supporting block (141) that is recessed to a predetermined length so that the first corner connecting part (130) of another assembly block (110) can be joined, and has a joining groove (142) formed in a direction perpendicular to the joining projection (131) of the first corner connecting part (130). Claim 6 In claim 5, the coupling groove (142) is ' ',' A prefabricated manhole for cables characterized by being one of the following shapes. Claim 7 A prefabricated manhole for cables according to claim 1, characterized in that a 'U'-shaped reinforcing frame (600) is installed on the outer surface of the manhole body (100). Claim 8 A prefabricated manhole for cables according to claim 1, wherein a plurality of pipe connectors (150) are formed vertically through the assembly block (110) to connect various protective pipes, and a plurality of cut grooves (151) having different sizes are formed in the pipe connectors (150).

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