Waveguide tube fixing device

Abstract

The utility model discloses a waveguide tube fixing device which comprises a base and an upper cover plate, a groove with an upward opening is arranged on the base, the upper cover plate is detachably arranged at a notch of the groove, and the upper cover plate and the base are detachably and fixedly connected to form a square through hole through which a waveguide tube can pass. A plurality of water guide through grooves are horizontally formed in the bottom of the inner wall of the through hole at intervals; the base and the upper cover plate are both made of MCPA non-metallic materials. The waveguide tube fixing device is simple in structure and convenient to mount and dismount. The bottom of the inner wall of the through hole in contact with the waveguide tube is horizontally provided with a plurality of water guide through grooves, two ends of each water guide through groove are communicated with the outside, and the water guide through grooves can prevent water accumulation and prevent the aluminum waveguide tube from being eroded by the accumulated water. The whole waveguide tube fixing device is made of an MCPA non-metal material and does not contain any metal material, so that the waveguide tube fixing device and the waveguide tube made of an aluminum alloy material do not generate an anodic reaction for corroding the waveguide tube, and electromagnetic wave loss can be avoided.

Description

Technical Field

[0001] The utility model belongs to the field of waveguide installation, and in particular relates to a waveguide fixing device. Background Art

[0002] At present, subway lines use a train control system (CBTC) based on wireless communication technology, using waveguides as the transmission medium for vehicle-to-ground communication. The waveguide is made of aluminum alloy and installed on the tunnel floor. It is usually supported and fixed by an iron mounting bracket. The structure of this iron mounting bracket is scattered and inconvenient to install. Some subway line tunnels are near the sea, the tunnel humidity is high, and there are many water seepage areas on the tunnel wall. Water is easy to accumulate between the waveguide and the iron bracket. Due to the high pH value of the water environment in the tunnel, the surface of the aluminum waveguide is dissolved and perforated under strong alkaline conditions, and reacts with carbon dioxide in the tunnel to form aluminum carbonate. Aluminum carbonate is deposited in large quantities in the tube through the perforated parts, hindering the transmission of wireless signals in the tube. When the train passes through the corroded waveguide area, it cannot receive the signal sent by the waveguide, causing the train to brake urgently, affecting the quality of operation service. In addition, when the iron mounting bracket fixes the waveguide, bolts are usually used. When galvanic corrosion occurs between the metals in direct contact, the bolts may rust, making disassembly and assembly more difficult.

[0003] Therefore, a new technology is needed to solve the problem in the prior art that the fixed workpiece of the waveguide is inconvenient to install and disassemble and is prone to corrosion. Utility Model Content

[0004] In order to solve the above problems in the prior art, the utility model provides a waveguide fixing device, which has the effects of simple structure, easy installation and disassembly and non-corrosive.

[0005] The utility model adopts the following technical solutions:

[0006] A waveguide fixing device comprises a base and an upper cover plate, wherein the base is provided with a groove opening upward, the upper cover plate is detachably mounted at the notch of the groove, the upper cover plate and the base are detachably fixedly connected to form a square through hole for the waveguide to pass through, a plurality of water-conducting grooves arranged at intervals are horizontally provided at the bottom of the inner wall of the through hole, and both ends of each of the water-conducting grooves are connected to the outside, wherein the base and the upper cover plate are both made of MCPA non-metallic material.

[0007] As a further improvement of the technical solution of the utility model, the base includes a first side plate, a lower support plate, and a second side plate which are fixedly connected in sequence in an H shape, the first side plate and the second side plate are parallel to each other and symmetrically arranged, the lower support plate forms the bottom of the groove, the plurality of water guiding grooves are arranged on the lower support plate, and the first side plate and the second side plate respectively form the two side walls of the groove.

[0008] As a further improvement of the technical solution of the present utility model, symmetric first guide grooves and second guide grooves are horizontally provided on both side walls of the groove respectively. Two ends of the upper cover plate are respectively slidably inserted into the first guide groove and the second guide groove and are slidably and fixedly connected to the base.

[0009] One ends of the first guide groove and the second guide groove are both closed, and first openings for the upper cover plate to pass through are provided at the other ends.

[0010] As a further improvement of the technical solution of the present utility model, a limiting plate is further included. The limiting plate is made of MCPA non-metallic material. The limiting plate is detachably fixed on the base and two ends are respectively close to the two first openings. One side of the limiting plate abuts against the upper cover plate and is used to limit the upper cover plate from horizontally disengaging from the first guide groove and the second guide groove.

[0011] As a further improvement of the technical solution of the present utility model, symmetric first slots and second slots are vertically provided on both side walls of the groove respectively. The first slot communicates with the first guide groove and is in a cross shape. The second slot communicates with the second guide groove and is in a cross shape. Two ends of the limiting plate are respectively slidably inserted into the first slot and the second slot and are slidably and fixedly connected to the base. Bottom ends of the first slot and the second slot are both closed, and second openings for the limiting plate to pass through are provided at upper ends.

[0012] As a further improvement of the technical solution of the present utility model, a stop block is further included. The stop block is made of MCPA non-metallic material. The stop block is detachably fixed on the top end of the base and is located above the limiting plate. The stop block is used to block at least one of the second openings.

[0013] As a further improvement of the technical solution of the present utility model, an adjusting support is further included. The base is detachably and fixedly connected to the adjusting support. The adjusting support includes a first plate body, a second plate body and a third plate body which are sequentially connected in a U shape. The second plate body is horizontally arranged and is provided with a plurality of drainage holes. The first plate body, the first side plate, the second side plate and the third plate body are arranged in sequence from left to right and are parallel to each other. The first side plate and the second side plate are both located above the second plate body.

[0014] As a further improvement of the technical solution of the present utility model, a plurality of fixing pieces are further included. Each fixing piece is made of MCPA non-metallic material. A plurality of threaded holes are provided on both the first side plate and the second side plate. Connecting holes corresponding to the threaded holes one by one are provided on both the first plate body and the third plate body. One end of each fixing piece passes through a connecting hole and is adapted to a threaded hole.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] The waveguide fixing device of this scheme has a simple structure and is easy to install and disassemble. A number of water-conducting grooves are horizontally arranged at the bottom of the inner wall of the through hole in contact with the waveguide, and both ends of each water-conducting groove are connected to the outside world. The arrangement of the water-conducting grooves can prevent water accumulation and avoid water erosion of the aluminum waveguide. In addition, the waveguide fixing device of this scheme is made of MCPA non-metallic material as a whole and does not contain any metal material, so it will not produce an anodic reaction with the aluminum alloy waveguide to corrode it, and it can also avoid electromagnetic wave loss. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The technology of the utility model is further described in detail below in conjunction with the accompanying drawings and specific embodiments:

[0018] Figure 1 It is an axonometric view of the overall structure of the utility model;

[0019] Figure 2 This is the main view of the overall structure of the utility model;

[0020] Figure 3 It is a side view of the overall structure of the utility model;

[0021] Figure 4 It is an axonometric view of the base;

[0022] Figure 5 It is the front view of the base;

[0023] Figure 6 It is an axonometric view of the adjustable support.

[0024] Reference numerals:

[0025] 1-base; 11-groove; 12-first side plate; 121-first guide groove; 122-first slot; 123-threaded hole; 13-second side plate; 131-second guide groove; 132-second slot; 133-step structure; 14-lower support plate; 141-water guide groove;

[0026] 2- Upper cover;

[0027] 3-limiting plate;

[0028] 4-adjusting support; 41-first plate; 411-connecting hole; 42-second plate; 421-drainage hole; 43-third plate;

[0029] 5-Fixer;

[0030] 6-Through hole. DETAILED DESCRIPTION

[0031] The following will be combined with the embodiments and drawings to clearly and completely describe the concept, specific structure and technical effects of the utility model, so as to fully understand the purpose, scheme and effect of the utility model. It should be noted that the embodiments and features in the embodiments in this application can be combined with each other without conflict. The same reference numerals used throughout the drawings indicate the same or similar parts.

[0032] It should be noted that, unless otherwise specified, when a feature is referred to as being "fixed" or "connected" to another feature, it can be directly fixed or connected to the other feature, or it can be indirectly fixed or connected to the other feature. In addition, the descriptions of up, down, left, right, etc. used in the present invention are only relative to the relative positional relationship of the components of the present invention in the accompanying drawings.

[0033] Reference Figures 1 to 6 A waveguide fixing device includes a base 1 and an upper cover plate 2. The base 1 is provided with a groove 11 opening upward. The upper cover plate 2 is detachably mounted at the notch of the groove 11. The upper cover plate 2 is detachably fixedly connected to the base 1 to form a square through hole 6 through which the waveguide can pass. The bottom of the inner wall of the through hole 6 is horizontally provided with a plurality of water-conducting grooves 141, and the plurality of water-conducting grooves 141 are arranged at intervals. The base 1 and the upper cover plate 2 are both made of MCPA non-metallic materials, which will not produce an anodic reaction with the waveguide made of aluminum alloy to corrode it, and can also avoid electromagnetic wave loss. The waveguide fixing device of this scheme has a simple structure and is easy to install and disassemble. The bottom of the inner wall of the through hole 6 in contact with the waveguide is horizontally provided with a plurality of water-conducting grooves 141, and both ends of each water-conducting groove 141 are connected to the outside world. The setting of the water-conducting grooves 141 can prevent water accumulation and avoid water accumulation from corroding the aluminum waveguide.

[0034] Specifically, the base 1 includes a first side plate 12, a lower support plate 14, and a second side plate 13 which are fixedly connected in sequence in an H shape. The first side plate 12 and the second side plate 13 are parallel to each other and symmetrically arranged. The lower support plate 14 forms the bottom of the groove 11. The plurality of water-conducting grooves 141 are arranged on the lower support plate 14. Both ends of each water-conducting groove 141 are connected to the outside world or the two vertical sides of the lower support plate 14. The first side plate 12 and the second side plate 13 respectively form the two side walls of the groove 11. The lower support plate 14 is designed with a plurality of water-conducting grooves 141 to prevent water accumulation, which can prevent the accumulated water from corroding the aluminum waveguide. The bottom of the first side plate 12 and the second side plate 13 are provided with a plurality of threaded mounting holes at the connection parts with other devices. MCPA screws can be used to connect with other devices without rusting, and it is easy to install and disassemble with other devices, which greatly improves the efficiency of assembly and disassembly.

[0035] Specifically, step structures 133 are provided on both side surfaces of the first side panel 12 and the second side panel 13 that are close to each other. The step structures 133 on the first side panel 12 and the second side panel 13 can be symmetrically arranged. The arrangement of the step structures 133 can make the connection structure between the waveguide and the base 1 more stable, and at the same time facilitate the installation and disassembly of the waveguide.

[0036] Specifically, a first guide groove 121 and a second guide groove 131 are horizontally provided on both side walls of the groove 11, and are symmetrical to each other. Both ends of the upper cover plate 2 can be slidably inserted into the first guide groove 121 and the second guide groove 131, respectively, and can be slidably fixedly connected to the base 1; one end of the first guide groove 121 and the second guide groove 131 are closed, and the other end is provided with a first opening for the upper cover plate 2 to pass through.

[0037] Specifically, the waveguide fixing device of the present scheme also includes a limit plate 3, which is made of MCPA non-metallic material. The limit plate 3 is vertically and detachably fixed on the base 1 and its two ends are respectively close to the two first openings. One side of the limit plate 3 is in contact with the upper cover plate 2, and the limit plate 3 is used to limit the upper cover plate 2 from horizontally falling out of the first guide groove 121 and the second guide groove 131.

[0038] Specifically, the two side walls of the groove 11 are vertically provided with a first slot 122 and a second slot 132 which are symmetrical to each other. The first slot 122 is interconnected with the first guide groove 121, and the first slot 122 and the first guide groove 121 can be in a cross shape after being connected. The second slot 132 and the second guide groove 131 are interconnected, and the second slot 132 and the second guide groove 131 can be in a cross shape after being connected. The two ends of the limit plate 3 can be slidably inserted into the first slot 122 and the second slot 132 and slidably fixedly connected with the base 1. The bottom ends of the first slot 122 and the second slot 132 are both closed, and the upper ends are provided with a second opening through which the limit plate 3 can pass. Considering the convenience of laying out, installing, debugging and daily maintenance of the waveguide, the upper cover plate 2 and the limit plate 3 both adopt an insert-type installation structure, which is both anti-slip and easy to install and disassemble.

[0039] Specifically, the waveguide fixing device of this solution further includes a stop block, the stop block is made of MCPA non-metallic material, and the stop block can be detachably fixed to the top of the base 1 and located above the limit plate 3 by screws made of MCPA non-metallic material. The stop block is used to block at least one of the second openings to limit the upward movement of the limit plate 3. The stop block can be fixed to the upper ends of the first side plate 12 or the second side plate 13 by screws made of MCPA non-metallic material. The number and size of the stop blocks can be selected according to the actual situation. When using a stop block with a larger size, both ends of the stop block can be respectively installed at the upper ends of the first side plate 12 and the second side plate 13 to block the two second openings at the same time. When a smaller-sized stop block is selected, two stop blocks can be used to correspond to the two second openings one by one. The two stop blocks are respectively installed at the upper ends of the first side plate 12 and the second side plate 13. At this time, the two stop blocks can respectively block the corresponding second openings.

[0040] Specifically, the waveguide fixing device of this solution further includes an adjusting support 4 and a plurality of fixing members 5. The fixing members 5 are preferably screws. The base 1 is detachably and fixedly connected to the adjusting support 4. The adjusting support 4 and each of the fixing members 5 are made of MCPA non-metallic material. The adjusting support 4 includes a first plate body 41, a second plate body 42, and a third plate body 43 that are sequentially connected in a U shape. The second plate body 42 is horizontally arranged and is provided with a plurality of drain holes 421. The first plate body 41, the first side plate 12, the second side plate 13, and the third plate body 43 are arranged in sequence from left to right and are parallel to each other. The first side plate 12 and the second side plate 13 are both located above the second plate body 42. A plurality of threaded holes 123 are provided on both the first side plate 12 and the second side plate 13. Connection holes 411 corresponding to each of the threaded holes 123 are provided on both the first plate body 41 and the third plate body 43. One end of each fixing member 5 passes through one of the connection holes 411 and is adapted to one of the threaded holes 123. Among them, each connection hole 411 can be a vertically arranged long hole. After adjusting the relative position of the base 1 and the adjusting support 4 in the vertical direction, the base 1 and the adjusting support 4 can be fixed by the fixing members 5. The setting of the long hole facilitates the relative position of the base 1 and the adjusting support 4 in the vertical direction.

[0041] The entire waveguide fixing device of this solution is made of MCPA non-metallic material. The structures directly or in contact with the waveguide do not contain any metal materials. Therefore, it will not generate an anodic reaction that corrodes the aluminum alloy waveguide, and can also avoid electromagnetic wave loss, and the material cost is lower than that of a metal fixing device.

[0042] For other contents of the waveguide fixing device described in the present invention, reference can be made to the prior art and will not be elaborated here.

[0043] The above description is only a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Therefore, any modification, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A waveguide fixing device, characterized in that: It includes a base and an upper cover plate. An upward-opening groove is provided on the base, and the upper cover plate is detachably installed at the notch of the groove. The upper cover plate and the base are detachably and fixedly connected to form a square through-hole for a waveguide to pass through. A number of water guide grooves are horizontally provided at the bottom of the inner wall of the through-hole, and both ends of each water guide groove communicate with the outside. Among them, both the base and the upper cover plate are made of MCPA non-metallic material.

2. The waveguide fixing device according to claim 1, characterized in that: The base includes a first side plate, a lower support plate, and a second side plate that are fixedly connected in sequence to form an H shape. The first side plate and the second side plate are parallel and symmetrically arranged. The lower support plate forms the bottom of the groove, and the number of water guide grooves is provided on the lower support plate. The first side plate and the second side plate respectively form the two side walls of the groove.

3. The waveguide fixing device according to claim 2, characterized in that: Symmetrically arranged first guide grooves and second guide grooves are horizontally provided on the two side walls of the groove respectively. Both ends of the upper cover plate are slidably inserted into the first guide groove and the second guide groove respectively and are slidably and fixedly connected to the base. One end of both the first guide groove and the second guide groove is closed, and the other end is provided with a first opening for the upper cover plate to pass through.

4. The waveguide fixing device according to claim 3, characterized in that: It further includes a limiting plate. The limiting plate is made of MCPA non-metallic material. The limiting plate is detachably fixed on the base and both ends are respectively close to the two first openings. One side of the limiting plate abuts against the upper cover plate and is used to limit the upper cover plate from horizontally disengaging from the first guide groove and the second guide groove.

5. The waveguide fixing device according to claim 4, characterized in that: Symmetrically arranged first slots and second slots are also vertically provided on the two side walls of the groove. The first slot communicates with the first guide groove, and the second slot communicates with the second guide groove. Both ends of the limiting plate are slidably inserted into the first slot and the second slot respectively and are slidably and fixedly connected to the base. The bottom ends of both the first slot and the second slot are closed, and the upper ends are provided with second openings for the limiting plate to pass through.

6. The waveguide fixing device according to claim 5, characterized in that: It further includes a stop block. The stop block is made of MCPA non-metallic material. The stop block is detachably fixed on the top of the base and is located above the limiting plate. The stop block is used to block at least one of the second openings.

7. The waveguide fixing device according to claim 5, characterized in that: It further includes an adjusting support. The base and the adjusting support are detachably and fixedly connected. The adjusting support includes a first plate body, a second plate body, and a third plate body that are connected in sequence to form a U shape. The second plate body is horizontally arranged and is provided with a number of drain holes. The first plate body, the first side plate, the second side plate, and the third plate body are arranged in sequence from left to right and are parallel to each other. Both the first side plate and the second side plate are located above the second plate body.

8. The waveguide fixing device according to claim 7, characterized in that: It further includes a number of fixing pieces. Each fixing piece is made of MCPA non-metallic material. A number of threaded holes are provided on both the first side plate and the second side plate. Connection holes corresponding to each threaded hole are provided on both the first plate body and the third plate body. One end of each fixing piece passes through a connection hole and is adapted to a threaded hole.

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