Single-bolt mechanical tee joint

Abstract

The utility model relates to the technical field of mechanical tee joints, in particular to a single-bolt mechanical tee joint. Comprising a three-way body and a flow dividing pipe which are communicated, and an upper half tile is fixedly installed on the three-way body; lower pieces are clamped to the two ends of the upper half tile, mounting parts are fixedly mounted at the lower ends, away from the upper half tile, of the two lower pieces, the two mounting parts can be fixedly connected through bolts and nuts, and the distance between the ends, away from the upper half tile, of the two lower pieces is smaller than the diameter of a mounting pipeline of the lower pieces. By means of the structure, when the device is connected with a pipeline, only one bolt and one nut need to be used for fixedly connecting the mounting part at the bottom of the lower piece, and therefore the connecting, mounting and dismounting efficiency of the mechanical tee joint is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical tees, in particular to a single-bolt mechanical tee. Background Art

[0002] Mechanical tees have the same functions as ordinary tees. Mechanical tees are divided into grooved mechanical tees and threaded mechanical tees. They can be used to directly connect branch pipes to steel pipes and are widely used in the installation of fire protection pipes and sprinkler pipes. Mechanical tees can be used when diversion or confluence is required.

[0003] In the prior art, for example, a newly applied utility model patent with the authorization announcement number CN209041837U discloses a mechanical tee, which is mainly composed of a guide cylinder, an upper half tile and a lower half tile. The ends of the upper half tile and the lower plate tile are fixedly connected by two bolts and nuts, so that the upper half tile and the lower half tile can be fixedly installed on the pipeline. When installing the mechanical tee in the prior art, the upper half tile and the lower half tile need to be put on the pipeline and then fixed by the bolts at both ends. When disassembling, the two bolts also need to be disassembled, and the installation or disassembly efficiency of the two bolts is low. Utility Model Content

[0004] In view of the above problems, the utility model provides a single-bolt mechanical tee to solve the problem of low installation or removal efficiency of two bolts in the prior art.

[0005] The utility model is realized by using the following technical scheme: a single-bolt mechanical tee, comprising a connected tee body and a diverter pipe, an upper half-tile being fixedly mounted on the tee body; lower pieces are clamped at both ends of the upper half-tile, and mounting parts are fixedly mounted at the lower ends of the two lower pieces away from the upper half-tile, the two mounting parts can be fixedly connected by bolts and nuts, and the distance between the ends of the two lower pieces away from the upper half-tile is less than the diameter of the mounting pipe.

[0006] Through the above structure, when the device is connected to the pipeline, it is only necessary to fix the installation part at the bottom of the lower piece with a bolt and a nut, thereby improving the connection, installation and disassembly efficiency of the mechanical tee.

[0007] Furthermore, both ends of the upper half tile are provided with a limit portion extending upward, a clamping groove is formed between the limit portion and the upper half tile, and a clamping portion matching the clamping groove is provided on the top of the lower piece, and the clamping portion can be installed in the clamping groove and abut against the limit portion. Through the above structure, the assembly of the lower piece and the upper half tile is simpler, and it is only necessary to place the clamping portion of the lower piece in the position of the clamping groove, and then fix the bottom of the lower piece with bolts and nuts, which further improves the installation and disassembly efficiency of the mechanical tee.

[0008] Furthermore, the bottoms of the two lower pieces both extend towards each other to form fastening parts. With the above structure, the distance between the two lower pieces is smaller, thereby improving the stability of the installation of the lower piece and the pipeline it cooperates with.

[0009] Furthermore, the inner sides of the two lower pieces and the two fastening parts form an arc surface adapted to the installation pipeline. By making the formed arc surface adapted to the installed pipeline, the contact surface between the mechanical tee and the installed pipeline is larger, further improving the stability of the installation of this device.

[0010] Furthermore, two fastening parts are provided at the bottom of each of the two lower pieces, and the two fastening parts are respectively located at the front and rear sides of the lower piece. While maintaining stability, the two fastening parts also reduce the material used in this device, thereby reducing the weight of this device and making this device more portable during use.

[0011] Furthermore, the tee body, the shunt pipe, the upper half tile, the engaging groove, the limiting part, the lower piece, the engaging part, and the fastening part are all symmetric about the left and right. Through the symmetric design, the structure of this device is simpler and more convenient to produce during production, thereby reducing the production cost of this device.

[0012] Furthermore, the installation part includes a first installation part and a second installation part respectively installed at the bottom of the two lower pieces. The first installation part is provided with an installation hole, and the second installation part is provided with an opening groove. Through the design of the opening groove, it is more convenient to install and remove bolts for this device, further improving the installation and disassembly efficiency of this device.

[0013] Furthermore, both the front and rear sides of the middle part of the upper half tile extend away from the tee body to form reinforcing plates. Through the design of the reinforcing plates, the connection between this device and the pipeline is more stable, the force on this device is more uniform, thereby improving the service life of this device.

[0014] Furthermore, the limiting part extends obliquely upwards away from the tee body, and the angle between the limiting part and the central axis of the tee body is 35°. Through the inclined setting, the area where the limiting part abuts against the engaging part is larger, thereby improving the stability of the installation of the engaging part and further improving the service life of this device.

[0015] In summary, the beneficial effects of the present utility model are as follows:

[0016] By connecting one end of the upper half tile to a lower piece respectively, when the bottom of the lower piece is connected by a bolt and a nut, the engaging portion on the lower piece will also abut against the limiting portion, so as to achieve the function of clamping and fixing. The fixing of the mechanical tee is realized only by a bolt and nut combination, so that the installation and disassembly of the device can be more convenient, and the installation and disassembly efficiency is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0018] Figure 2 is a schematic diagram of the structure of the lower piece and the upper half tile of the present utility model in cooperation;

[0019] Figure 3 is a top view of the present utility model;

[0020] Figure 4 is Figure 3 a sectional view taken at the position of "A - A" in

[0021] In the figure: 1 - tee body; 2 - shunt pipe; 3 - upper half tile; 4 - engaging portion; 5 - limiting portion; 6 - lower piece; 7 - first mounting portion; 8 - fastening portion; 9 - opening groove; 10 - second mounting portion; 11 - reinforcing plate; 12 - engaging groove. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] The following will further describe in detail the specific embodiments of the present utility model in conjunction with the drawings and embodiments. The following embodiments are used to illustrate the present utility model, but are not used to limit the scope of the present utility model.

[0023] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present application.

[0024] The following is a description of the preferred embodiments of the present utility model in conjunction with the drawings.

[0025] As Figures 1 to 4As shown in the figure, the present utility model provides a single-bolt type mechanical tee, which includes a communicating tee body 1 and a shunt pipe 2. An upper half tile 3 is fixedly installed on the tee body 1. Lower pieces 6 are clamped at both ends of the upper half tile 3. Installation parts are fixedly installed at the lower ends of the two lower pieces 6 away from the upper half tile 3, and the two installation parts can be fixedly connected by bolts and nuts. The distance between the ends of the two lower pieces 6 away from the upper half tile 3 is less than the diameter of the installation pipe, so that the pipe will not fall off when installed between the upper half tile 3 and the lower pieces 6.

[0026] As a further illustration of this example, limiting parts 5 extend obliquely upward at both ends of the upper half tile 3; among them, the inclination direction of the limiting parts 5 is inclined away from the tee body 1, and the specific inclination angle is 35°, and this inclination angle can be adjusted according to the actual situation. A clamping groove 12 is formed between the limiting part 5 and the upper half tile 3. A clamping part 4 matching the clamping groove 12 is provided at the top of the lower piece 6. An avoidance hole through which the upper half tile 3 can pass is also provided on the lower piece 6, and the clamping part 4 can be installed in the clamping groove 12 and abutted against the limiting part 5.

[0027] When the lower piece 6 needs to be installed, the avoidance hole on the lower piece 6 is passed through the limiting part 5, so that the clamping part 4 can fall into the clamping groove 12. When the bolt and nut are not installed, at this time the clamping part 4 just lies on the position of the clamping groove 12 and can move freely. When the bolt and nut are fixedly installed, at this time the inner side surface of the limiting part 5 will abut against the outer side surface of the clamping part 4, making the lower piece 6 unable to move freely, thus forming a clamped connection method. The inclination angle of the limiting part 5 in this embodiment is to form a larger contact surface with the clamping part 4, so that the fixation between the clamping part 4 and the limiting part 5 is more stable, thereby increasing the service life of the device.

[0028] As a further illustration of this example, the bottoms of the two lower pieces 6 both extend towards each other to form fastening parts 8. The inner sides of the two lower pieces 6 and the two fastening parts 8 form an arc surface adapted to the installation pipe. The formation of the fastening part 8 can reduce the distance between the two lower pieces 6, so that the pipe installed therein is more stable. The formation of the arc surface is for the lower piece to fit the pipe installed therein more, further improving the installation stability of the device, and thus improving the overall life of the device. In addition, the number of fastening parts 8 installed at the bottom of each lower piece 6 is two, which are respectively located on the front and back sides of the lower piece 6; the design of the two fastening parts 8 makes the device use less materials without affecting the installation stability of the pipe, so that the device is lighter and more convenient to pick up and use.

[0029] The three-way body 1, the shunt pipe 2, the upper half tile 3, the engaging groove 12, the limiting part 5, the lower piece 6, the engaging part 4, and the fastening part 8 in this device are all symmetric about the left and right. The symmetric arrangement about the left and right makes the mold used in the production of this device simpler, thus making it more convenient for the mass production of this device and increasing the economic benefits of this device.

[0030] As Figure 1 , Figure 2 shown, the installation part includes a first installation part 7 and a second installation part 10 respectively installed at the bottoms of the two lower pieces 6. The first installation part 7 is provided with an installation hole, and the second installation part 10 is provided with an opening groove 9. Through the setting of the opening groove 9, the bolts in this device can be installed better. The width of the opening groove 9 should be smaller than the diameter of the bolt head of the bolt. The bolt is installed into the second installation part 10 along the opening groove 9, so that the bolt head is located on the side of the second installation part 10 away from the first installation part 7. The bolt column of the bolt will pass through the first installation part 7, and then the nut is installed on the bolt column on the side of the first installation part 7 away from the second installation part 10, and then the nut is tightened. When the limiting part 5 firmly abuts against the engaging part 4, the nut can no longer be tightened, and at this time, the installation of the bolt is completed.

[0031] Both the front and rear sides of the middle part of the upper half tile 3 extend away from the three-way body 1 to form reinforcing plates 11. The middle part of the upper half tile 3 is the main stress point between the upper half tile 3 and the pipeline. Therefore, two more reinforcing plates 11 are added here, so that its bearing capacity is greater, further increasing the stability of this device and improving the service life of this device.

[0032] The working principle of this device is as follows: There are two pipelines, namely the first pipeline and the second pipeline. A first hole is opened on the first pipeline, the three-way body 1 is communicated with the first hole, and then the shunt pipe 2 is inserted into the second hole on the second pipeline. At this time, the lower piece 6 is placed at the position of the engaging groove 12, and then bolts and nuts are installed and fixed at the bottom of the lower piece 6, so that the second pipeline is located between the upper half tile 3 and the two lower pieces 6, thus realizing the diversion or confluence of the pipelines.

[0033] In summary, the present utility model provides a single-bolt mechanical three-way. By connecting one lower piece 6 to each end of the upper half tile 3, when the bottom of the lower piece 6 is connected by a bolt and a nut, the engaging part 4 on the lower piece will also abut against the limiting part 5, so as to achieve the function of clamping and fixing. The fixation of the mechanical three-way is realized only through a bolt-nut combination, so that this device can be more convenient in installation and disassembly, and the efficiency of installation and disassembly is improved.

[0034] The above are only the preferred embodiments of the present utility model. It should be noted that for those of ordinary skill in the art, without departing from the technical principle of the present utility model, several improvements and substitutions can be made, and these improvements and substitutions should also be regarded as the protection scope of the present utility model.

Claims

1. A single-bolt mechanical tee, comprising a connected tee body (1) and a diverter pipe (2), wherein an upper half-wafer (3) is fixedly mounted on the tee body (1); characterized in that: The two ends of the upper half tile (3) are clamped with lower pieces (6), and the lower ends of the two lower pieces (6) away from the upper half tile (3) are fixedly mounted with mounting parts, and the two mounting parts can be fixedly connected by bolts and nuts, and the distance between the ends of the two lower pieces (6) away from the upper half tile (3) is less than the diameter of the mounting pipe.

2. The single-bolt mechanical tee according to claim 1, characterized in that: Both ends of the upper half tile (3) are provided with limit portions (5) extending upwards, a snap-fitting groove (12) is formed between the limit portion (5) and the upper half tile (3), and a snap-fitting portion (4) matching the snap-fitting groove (12) is provided on the top of the lower piece (6), and the snap-fitting portion (4) can be installed in the snap-fitting groove (12) and abut against the limit portion (5).

3. The single-bolt mechanical tee according to claim 2, characterized in that: The bottoms of the two lower sheets (6) extend towards each other to form a fastening portion (8).

4. The single-bolt mechanical tee according to claim 3, characterized in that: The inner sides of the two lower plates (6) and the two fastening portions (8) form an arc surface that matches the installation pipe.

5. The single-bolt mechanical tee according to claim 4, characterized in that: Two fastening portions (8) are provided at the bottom of each of the two lower pieces (6), and the two fastening portions (8) are respectively located at the front and rear sides of the lower piece (6).

6. The single-bolt mechanical tee according to claim 5, characterized in that: The three-way body (1), the flow dividing pipe (2), the upper half tile (3), the engaging groove (12), the limiting portion (5), the lower plate (6), the engaging portion (4), and the fastening portion (8) are all bilaterally symmetrical.

7. The single-bolt mechanical tee according to claim 1, characterized in that: The mounting portion comprises a first mounting portion (7) and a second mounting portion (10) respectively mounted on the bottom of the two lower pieces (6); the first mounting portion (7) is provided with a mounting hole, and the second mounting portion (10) is provided with an opening groove (9).

8. The single-bolt mechanical tee according to claim 1, characterized in that: Both front and rear sides of the middle portion of the upper half tile (3) extend in a direction away from the tee body (1) to form a reinforcing plate (11).

9. The single-bolt mechanical tee according to claim 2, characterized in that: The limiting portion (5) extends obliquely upward in a direction away from the tee body (1), and the angle between the limiting portion (5) and the central axis of the tee body (1) is 35°.

Images