Wire pipe convenient to connect

Abstract

The utility model relates to the technical field of PVC (polyvinyl chloride) line pipes, in particular to a line pipe convenient to connect, which comprises at least two sequentially connected pipe fitting units and a plurality of locking pieces, each pipe fitting unit comprises a socket part and a spigot part connected with the socket part, the spigot parts of the adjacent pipe fitting units are inserted into the socket parts, and the locking pieces are connected with the socket parts. A guiding-in groove is formed in the position, located on the inner wall, of one end of the socket part, a protruding part is arranged on the outer wall of the spigot part, the protruding part is in sliding connection with the guiding-in groove of the adjacent pipe fitting unit, and a first inserting hole and a second inserting hole are formed in the socket part and the spigot part respectively. The first inserting hole is communicated with the second inserting hole of the adjacent pipe fitting unit, and the locking piece can be inserted into the first inserting hole and the second inserting hole which are in a communicated state. The first inserting hole and the second inserting hole can be quickly aligned through the effects of the guide-in groove and the protruding part, time for alignment is not needed during installation, glue does not need to be smeared for connection and fixation, and the construction efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of PVC conduit technology, and more specifically, to a conduit that is easy to connect. Background Technology

[0002] Polyvinyl chloride (PVC) is a versatile general-purpose plastic. Its products possess excellent mechanical properties, electrical insulation, and corrosion resistance. Furthermore, it is lightweight and inexpensive, making it widely used in construction, electrical, and medical fields. PVC conduit is one such product, commonly referred to as PVC power conduit or PVC cable conduit. It is typically used at the intersections of high-voltage and low-voltage electrical lines to provide protection. For example, it is used for surface-mounted and concealed low-voltage wiring in home renovations, concealed within cement grout during engineering installations, and buried underground for cable transmission.

[0003] There are two existing methods for connecting conduits: one is to flare one end of the conduit unit, apply glue to the conduit unit, and then directly insert it into the flared end for connection; the other is to apply glue to the fittings before connection. In construction, applying glue takes a long time, and connecting a large number of conduit units will seriously slow down the construction efficiency. Utility Model Content

[0004] The purpose of this invention is to overcome the problem that existing technologies require glue to connect conduit units at high temperatures, which takes a long time to apply the glue. This invention provides a convenient conduit that can be connected without glue, greatly shortening the connection time and improving construction efficiency.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0006] A conveniently connected conduit is provided, comprising at least two sequentially connected conduit units and a plurality of locking members. Each conduit unit includes a socket portion and a spigot portion connected to the socket portion, with the spigot portion of an adjacent conduit unit inserted into the socket portion. One end of the socket portion has an inlet groove on its inner wall, and the outer wall of the spigot portion has a protrusion, which is slidably connected to the inlet groove of the adjacent conduit unit. The socket portion and the spigot portion respectively have a first insertion hole and a second insertion hole penetrating the conduit wall. When the protrusion of an adjacent conduit unit slides to the closed end of the inlet groove, the first insertion hole and the second insertion hole of the adjacent conduit unit are connected, and the locking member can be inserted into the first insertion hole and the second insertion hole in the connected state.

[0007] This utility model discloses a conveniently connected conduit, in which conduit units are sequentially spliced ​​together, and cables are arranged inside the conduit. When connecting conduit units, the protrusions of adjacent conduit units are aligned and inserted into the guide groove. The protrusions slide to the end of the guide groove, at which point the first insertion hole and the second insertion hole of the adjacent conduit unit are connected. Then, a locking member is inserted into the first insertion hole and the second insertion hole of the adjacent conduit unit. The guide groove provides guidance for the protrusions, allowing the first and second insertion holes to align quickly. No alignment time is required during installation, shortening the connection time. The locking member restricts circumferential rotation and radial movement between the two conduit units, thereby locking the two conduit units and realizing the connection between the two conduit units. This conduit unit uses its own structure for connection, eliminating the need for glue, thus improving construction efficiency. In addition, the glue-free connection also avoids glue delamination under high temperatures, which could cause the conduit units to loosen.

[0008] Furthermore, the socket portion includes a flared portion and a transition portion connected in sequence. The transition portion is connected to one end of the spigot portion. The inner diameter of the flared portion is equal to the outer diameter of the spigot portion, and the inner diameter of the transition portion is equal to the inner diameter of the spigot portion. One end of the spigot portion of adjacent pipe fitting units abuts against the transition portion. This ensures that the inner diameter of the conduit is consistent, facilitating cable installation.

[0009] Furthermore, the guide groove is an L-shaped groove, with its open end extending axially and its closed end extending circumferentially. The protrusions of adjacent pipe units are aligned with the openings of the L-shaped grooves and inserted directly, then rotated to mount the protrusions onto the locking part. This connection method is quick and effective. Moreover, when the two pipe units are locked, the protrusions and the guide groove abut against each other, restricting radial movement of the two pipe units. The locking part only restricts the relative rotation of the two pipe units, thus improving the fixing effect of the two pipe units and reducing the force borne by the locking part.

[0010] Furthermore, one end of the locking member is flush with the inner wall of the socket. Because one end of the locking member is flush with the inner wall of the socket, the locking member will not extend into the socket, thus avoiding obstruction of cable installation.

[0011] Furthermore, it also includes a control box fixed to the outer wall of the socket portion. The control box includes an outer casing and a control board installed inside the outer casing. The control board includes a temperature measuring module and a wireless transceiver module. The locking element is a temperature sensor, which is electrically connected to the temperature measuring module, and the wireless transceiver module is also electrically connected to the temperature measuring module. Excessive current in the cable within the conduit can cause the cable temperature to rise, leading to cable damage. Since the conduit is buried inside the wall or underground, it is impossible to directly observe the temperature changes of the cable. The control box facilitates monitoring of the cable temperature. Here, the temperature sensor not only locks the two conduit units but also senses the cable temperature and converts it into an electrical signal, which is transmitted to the temperature measuring module. The temperature measuring module sends the signal to the receiver via the wireless transceiver module. Therefore, the receiver can provide information about the cable temperature. If the temperature is too high, the power should be cut off in time to protect the cable, thus improving safety.

[0012] Furthermore, the control box also includes a clamping ring fixedly connected to the outer box, the clamping ring being nested outside the socket portion. The clamping ring allows the control box to be fixed to the outside of the socket portion, facilitating easy assembly and disassembly without the need for adhesive bonding, thus improving the connection speed between pipe fitting units.

[0013] Furthermore, an annular groove is formed on the outer wall of the socket, and the clamping ring is installed in the annular groove. The annular groove limits the clamping ring, restricting its axial movement and improving its fixing effect, thus preventing it from coming off.

[0014] Furthermore, one end of the first insertion hole extends through the annular groove, and the clamping ring has a through hole for the locking member to be inserted, the through hole communicating with the first insertion hole. The locking member passes through the through hole of the clamping ring and is installed into the first and second insertion holes, making installation convenient.

[0015] Furthermore, the clamping ring is made of metal. Metal clamping rings have higher strength, preventing breakage during installation and thus avoiding the control box from detaching.

[0016] Furthermore, the control board also includes a positioning module, which is electrically connected to the wireless transceiver module. During the installation of conduits, since existing conduits are buried inside walls or underground, their direction cannot be visually observed. When new conduits are installed, they can easily be damaged. The positioning module can send a location signal via the wireless transceiver module, and workers can receive the signal through a receiver to determine the location and direction of the new conduit, thus avoiding damage to existing conduits.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] 1. Align the protrusion with and insert it into the guide groove of the adjacent pipe fitting unit. At this time, the first insertion hole and the second insertion hole of the adjacent pipe fitting unit are connected. Then, insert the locking piece into the first insertion hole and the second insertion hole to lock the two pipe fitting units. The first insertion hole and the protrusion can be quickly aligned by the guide groove and the first insertion hole. No time is spent on alignment during installation. The connection and fixation between pipe fitting units does not require the application of glue, which improves construction efficiency. In addition, the absence of glue connection can prevent glue from delaminating under high temperature conditions, which would cause the pipe fitting units to loosen.

[0019] 2. Setting up the temperature measurement module and wireless transceiver module: The temperature measurement module sends the signal to the receiver through the wireless transceiver module. Therefore, the temperature of the cable can be known through the receiver. If the temperature is too high, the power should be cut off in time to protect the cable and improve safety.

[0020] 3. The positioning module can send location signals through the wireless transceiver module. Workers can receive the location signals through the signal receiver to determine the location and direction of the buried conduit, thereby avoiding the buried conduit and preventing damage. Attached Figure Description

[0021] Figure 1 A schematic diagram of a pipe fitting unit for easy connection of conduits;

[0022] Figure 2 This is a schematic diagram showing the connection between two adjacent pipe fitting units;

[0023] Figure 3 This is a structural diagram of the protrusion, the guide groove, the first insertion hole, the second insertion hole, and the annular groove;

[0024] Figure 4 This is a schematic diagram of the control box.

[0025] In the attached diagram: 100, locking element; 200, socket; 210, guide groove; 220, first insertion hole; 230, flared part; 240, transition part; 250, annular groove; 300, insertion part; 310, protrusion; 320, second insertion hole; 400, control box; 410, outer box; 420, control board; 430, clamping ring. Detailed Implementation

[0026] The present invention will be further described below with reference to specific embodiments. The accompanying drawings are for illustrative purposes only, representing schematic diagrams rather than actual physical objects, and should not be construed as limiting the scope of this patent. To better illustrate the embodiments of the present invention, some components in the drawings may be omitted, enlarged, or reduced, and do not represent the actual dimensions of the product. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings.

[0027] In the accompanying drawings of this utility model, the same or similar reference numerals correspond to the same or similar components. In the description of this utility model, it should be understood that if terms such as "upper," "lower," "left," and "right" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, 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, the terms used to describe positional relationships in the drawings are only for illustrative purposes and should not be construed as limiting this patent. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0028] Example 1

[0029] A type of conduit that is easy to connect, such as Figure 1-3 As shown, the device includes two pipe fitting units connected in sequence. Each pipe fitting unit includes a locking member 100, a spigot portion 300, and a socket portion 200 connected to the spigot portion 300. The spigot portion 300 of adjacent pipe fitting units is inserted into the socket portion 200. One end of the socket portion 200 has an inlet groove 210 on its inner wall. In this embodiment, the inlet groove 210 is an L-shaped groove. Alternatively, the inlet groove 210 can also be an arc-shaped groove or other shapes. The open end of the L-shaped groove extends axially inward, and its closed end extends circumferentially. The socket portion 200 includes a flared portion 230 and a transition portion 240 connected in sequence. The inner diameter of the flared portion 230 is equal to the outer diameter of the spigot portion 300, and the inner diameter of the transition portion 240 is equal to the inner diameter of the spigot portion 300. The spigot portion 300 of adjacent pipe fitting units is inserted into the socket portion 200. One end of the socket portion 300 abuts against the transition portion 240. The outer wall of the socket portion 300 is provided with a protrusion 310. The protrusion 310 is slidably connected to the guide groove 210 of the adjacent pipe unit. The socket portion 200 and the socket portion 300 are respectively provided with a first insertion hole 220 and a second insertion hole 320 penetrating the pipe wall. When the protrusion 310 of the adjacent pipe unit is installed on the locking portion 212, the first insertion hole 220 and the second insertion hole 320 of the adjacent pipe unit are connected. The locking member 100 can be inserted into the first insertion hole 220 and the second insertion hole 320 of the adjacent pipe unit in the connected state. One end of the locking member is flush with the inner wall of the socket portion 200. In this embodiment, the locking member 100 is a pin. In addition, the locking member 100 can also be other long strip-shaped objects.

[0030] The working principle of this embodiment is as follows:

[0031] This utility model discloses a conveniently connected conduit. Conduit units are sequentially spliced ​​together, with the cable arranged inside the conduit. When connecting conduit units, the protrusions 310 of adjacent conduit units are aligned and inserted into the guide groove 210, then rotated. The protrusions 310 slide to the closed end of the guide groove 210. At this point, the first insertion hole 220 and the second insertion hole 320 of the adjacent conduit unit are connected. The guide groove 210 provides guidance for the protrusions 310, allowing the first insertion hole 220 and the second insertion hole 320 to align quickly. No alignment time is required during installation, shortening the connection time. Then, the locking element 1 is... The cable is inserted into the first socket 220 and the second socket 320 of the adjacent pipe unit, thereby locking the two pipe units and connecting them. The first socket 220 and the second socket 320 can be quickly aligned by the guide groove 210 and the protrusion 310, and locked with the locking member 100. No glue is needed, which improves construction efficiency. In addition, the glue-free connection can prevent glue from delaminating under high temperature, which would cause the pipe units to loosen. One end of the locking member is flush with the inner wall of the socket 300, and the locking member will not extend into the socket 300, thus avoiding obstruction of cable installation.

[0032] In addition, each pipe unit consists of three layers of materials from the inside out: CPVC high-temperature resistant composite material, ordinary PVC composite material, and CPVC high-temperature resistant composite material.

[0033] Example 2

[0034] This embodiment provides a second embodiment of a conveniently connected conduit. This embodiment is similar to Embodiment Two, except that, as... Figure 1 and Figure 4 As shown, it also includes a control box 400 fixed to the outer wall of the socket portion 200. The control box 400 includes an outer box 410 and a control board 420 installed inside the outer box 410. The control board 420 includes a temperature measurement module, a positioning module and a wireless transceiver module. The locking member 100 is an infrared temperature sensor. The infrared temperature sensor is electrically connected to the temperature measurement module, the wireless transceiver module is electrically connected to the temperature measurement module, and the positioning module is electrically connected to the wireless transceiver module. In this embodiment, the positioning module is an RFID chip.

[0035] The working principle of this embodiment is as follows:

[0036] The temperature measurement module is included because excessive current in the conduit can cause the cable temperature to rise, potentially damaging the cable. Since the conduit is buried inside walls or underground, temperature changes are not readily apparent. The control board 420 facilitates temperature monitoring. The infrared temperature sensor here not only locks onto the two conduit units but also senses the cable temperature and converts it into an electrical signal, which is transmitted to the temperature measurement module. The module then transmits the signal to a receiver via a wireless transceiver module. The receiver provides information about the cable temperature, allowing for timely power cut-off to protect the cable and improve safety. The positioning module is also included because existing conduits are not visually observable during installation. Adding new conduits can easily damage them. The positioning module transmits a location signal via a wireless transceiver module, which is received by the receiver to pinpoint the conduit's location and direction, preventing damage.

[0037] Example 3

[0038] This embodiment is a third embodiment of a conveniently connected conduit. This embodiment is similar to embodiment two, except that, as... Figure 1 , Figure 3 and Figure 4 As shown, the control box 400 also includes a clamping ring 430 fixedly connected to the outer box 410. In this embodiment, the outer box 410 and the clamping ring 430 are integrally formed. Alternatively, they can be fixedly connected by threaded connection, riveting, or other methods. The outer wall of the socket 200 is provided with an annular groove 250. One end of the first insertion hole 220 passes through the annular groove 250. The clamping ring 430 is provided with a through hole for inserting a temperature sensor. The through hole communicates with the first insertion hole 220. The sealing cover 440 is detachably connected to the outer box 410. The sealing cover 440 is used to cover the mounting opening 410. The clamping ring 430 is made of metal.

[0039] The working principle of this embodiment is as follows:

[0040] The clamping ring 430 secures the control box 400 to the outside of the socket 200. After the first insertion hole 220 and the second insertion hole 320 are aligned, the temperature sensor is inserted through the through hole into the first insertion hole 220 and the second insertion hole 320. Then, the clamping ring 430 is fitted into the annular groove 250 to fix the control box 400 and the socket 200. The clamping ring 430 is easy to install and remove, has better stability, and is easy to install without the need for adhesive, thus improving the connection speed between pipe fitting units. The annular groove 250 can limit the clamping ring 430, restricting its axial movement and improving its fixing effect, preventing it from coming loose. The sealing cap 440 covers the installation opening, providing better sealing and preventing other debris from entering the outer box 410. The metal clamping ring 430 has high strength, preventing breakage during installation and thus preventing the control box 400 from coming loose.

[0041] In the specific implementation of the above embodiments, the technical features can be combined in any non-contradictory way. For the sake of brevity, not all possible combinations of the above technical features are described. However, as long as the combination of these technical features is not contradictory, it should be considered to be within the scope of this specification.

[0042] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating this utility model, and are not intended to limit the implementation of this utility model. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A conveniently connected conduit, comprising at least two conduit units connected in sequence, characterized in that, It also includes several locking elements (100), each pipe fitting unit includes a socket (200) and a spigot (300) connected to the socket (200), the spigot (300) of the adjacent pipe fitting unit is inserted into the socket (200); one end of the socket (200) is provided with a guide groove (210) on the inner wall, and the outer wall of the spigot (300) is provided with a protrusion (310), the protrusion (310) is slidably connected to the guide groove (210) of the adjacent pipe fitting unit. The socket (200) and the insertion (300) are respectively provided with a first insertion hole (220) and a second insertion hole (320) penetrating the pipe wall. When the protrusion (310) of the adjacent pipe fitting unit slides to the closed end of the guide groove (210), the first insertion hole (220) and the second insertion hole (320) of the adjacent pipe fitting unit are connected. The locking member (100) can be inserted into the first insertion hole (220) and the second insertion hole (320) in the connected state.

2. The easily connectable conduit according to claim 1, characterized in that, The socket portion (200) includes a flared portion (230) and a transition portion (240) connected in sequence. The transition portion (240) is connected to one end of the spigot portion (300). The inner diameter of the flared portion (230) is equal to the outer diameter of the spigot portion (300). The inner diameter of the transition portion (240) is equal to the inner diameter of the spigot portion (300). One end of the spigot portion (300) of the adjacent pipe fitting unit abuts against the transition portion (240).

3. The easily connectable conduit according to claim 1, characterized in that, The inlet groove (210) is an L-shaped groove, with the open end of the L-shaped groove extending axially and its closed end extending circumferentially.

4. The easily connectable conduit according to claim 1, characterized in that, One end of the locking member (100) is flush with the inner wall of the socket (200).

5. A conveniently connected conduit according to any one of claims 1-4, characterized in that, It also includes a control box (400) fixed to the outer wall of the socket (200). The control box (400) includes an outer box (410) and a control board (420) installed inside the outer box (410). The control board (420) includes a temperature measuring module and a wireless transceiver module. The locking member (100) is a temperature sensor. The temperature sensor is electrically connected to the temperature measuring module, and the wireless transceiver module is electrically connected to the temperature measuring module.

6. The easily connectable conduit according to claim 5, characterized in that, The control box (400) also includes a clamping ring (430) fixedly connected to the outer box (410), the clamping ring (430) being nested outside the socket (200).

7. A conveniently connected conduit according to claim 6, characterized in that, The outer wall of the socket (200) is provided with an annular groove (250), and the clamping ring (430) is installed in the annular groove (250).

8. The easily connected conduit according to claim 7, characterized in that, One end of the first insertion hole (220) passes through the annular groove (250), and the clamping ring (430) has a through hole for the locking member (100) to be inserted, and the through hole is connected to the first insertion hole (220).

9. A conveniently connected conduit according to claim 6, characterized in that, The clamping ring (430) is made of metal.

10. A conveniently connected conduit according to claim 5, characterized in that, The control board (420) also includes a positioning module, which is electrically connected to the wireless transceiver module.

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