Mechanical connecting device for connecting plastic pipe and grooved pipe
By designing the rotation mechanism of the fastening group and lining in the connecting device, adjusting the contact position between the cutting edge and the plastic pipe, the problem of unstable connection in the prior art is solved, and the tight connection and height of the pipe clamp and the plastic pipe are achieved. Sealing.
Patent Information
- Application Number
- CN202421219872.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-31
- Publication Date
- 2024-12-31
- Estimated Expiration
- 2034-05-31
AI Technical Summary
When the existing mechanical connection device connecting the plastic pipe and the groove pipe is reused, the tight connection between the clamp blade and the plastic pipe is destroyed, resulting in a reduced connection stability and making it difficult to maintain a tight connection.
A mechanical connection device including a tube clamp half body, a fastening group and a lining is designed. The fastener and lining are driven to rotate through the drive member to adjust the contact position of the cutting edge and the plastic pipe, ensuring the disassembly and reinstallation of the pipe clamp. Keep tight connections when
By adjusting the contact position between the cutting edge and the plastic pipe, ensuring that the pipe clamp and the plastic pipe remain tightly connected during reuse, improving the stability and sealing of the connection.
Smart Images
Figure CN222277839U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of pipeline connection, in particular to a mechanical connection device for connecting a plastic pipe and a groove pipe. Background Art
[0002] Plastic pipe fittings and grooved pipe fittings are widely used in pipelines. Plastic pipe fittings connect plastic pipes with plastic pipes by hot melting, and grooved pipe fittings connect grooved pipes by grooved pipe clamps. The connection between grooved pipes and plastic pipes usually adopts a combination of grooves and clamping blades. However, during the use of pipe clamps, the clamping blade and the plastic pipe will form a blade mark on the surface of the plastic pipe. When the pipe clamp is disassembled and reused, there will be a gap between the clamping blade and the plastic pipe, making it difficult to maintain a tight connection and reducing the connection stability.
[0003] A Chinese patent with patent announcement number CN216520230U discloses a mechanical connection device for connecting a plastic pipe and a groove pipe fitting, comprising two semi-circular shells, each of which is provided with a lug at both ends, and a sealing ring groove is provided on the inner ring surface of the shell, and the two shells can be connected end to end by bolts passing through the lugs; after the two shells are connected end to end, a central space for accommodating the plastic pipe and the groove pipe fitting can be enclosed, and a sealing ring is installed in the sealing ring groove after the two shells are connected end to end; a convex rib for connecting with the groove of the groove pipe fitting and a clamping mechanism that can be embedded in the pipe wall of the plastic pipe are provided on the inner ring surface of the shell, the convex rib is located on one side of the sealing ring groove, and the clamping mechanism is located on the other side of the sealing ring groove; the above-mentioned connection device uses a clamping tooth to ensure that the pipe clamp is tightly connected to the plastic pipe, but when the pipe clamp is reused, the tight connection between the clamping tooth and the plastic pipe is destroyed, and the connection stability is reduced.
[0004] In summary, the prior art obviously has inconveniences and defects in practical use, so it is necessary to improve it. Utility Model Content
[0005] In view of the above-mentioned defects, the purpose of the utility model is to provide a mechanical connecting device for connecting a plastic pipe and a grooved pipe, which can adjust the contact position of the cutting blade and the plastic pipe to ensure that the pipe clamp and the plastic pipe remain tightly connected when the pipe clamp is disassembled and reinstalled, thereby solving the problem of unstable connection when the pipe clamp is reused.
[0006] In order to achieve the above-mentioned purpose, the utility model provides a mechanical connection device for connecting a plastic pipe and a groove pipe, comprising: a group of pipe clamp halves, both sides of which are provided with connecting ears; a fastening group arranged on a group of pipe clamp halves, the fastening group comprising a driving member rotatably connected to one pipe clamp half and a fastener arranged at the output end of the driving member, the fastener is arranged in a lining groove, the lining groove is arranged on the inner wall of the pipe clamp half, and the fasteners are provided with cutting edges.
[0007] According to the mechanical connection device for connecting a plastic pipe and a grooved pipe of the utility model, the driving member is configured as a gear, the gear is meshed with a half gear ring, the half gear ring is fixed to a connecting rod, and the connecting rod is fixed to a fastener.
[0008] According to the mechanical connection device for connecting a plastic pipe and a groove pipe of the utility model, the fastener is configured as a group of linings, and both ends of one lining are respectively provided with a fixing pin and a pin hole that match each other.
[0009] According to the mechanical connection device for connecting a plastic pipe and a groove pipe of the utility model, a slide groove is provided on the pipe clamp half body, and a connecting rod is slidably connected in the slide groove.
[0010] According to the mechanical connection device for connecting a plastic pipe and a grooved pipe of the utility model, a protective shell is provided on the pipe clamp half body, and the protective shell is arranged outside the gear.
[0011] According to the mechanical connection device for connecting a plastic pipe and a grooved pipe of the utility model, a cross groove is provided on the top of the gear.
[0012] According to the mechanical connection device for connecting a plastic pipe and a grooved pipe of the utility model, a round rod is fixedly connected to the set of linings, the round rod is passed through the pipe clamp half, and an elastic member is arranged on the outer sleeve of the round rod, the end of the round rod abuts against a cam, the cam is fixed to a screw, the screw is rotatably connected to a fixed block, and the fixed block is fixed to the pipe clamp half.
[0013] The utility model provides a mechanical connection device for connecting a plastic pipe and a groove pipe, comprising: a group of pipe clamp halves, both sides of the group of pipe clamp halves are provided with connection ears; a fastening group is arranged on the group of pipe clamp halves, the fastening group comprises a driving member rotatably connected to one pipe clamp half body and a fastener arranged at the output end of the driving member, the fastener is arranged in a lining groove, the lining groove is arranged on the inner wall of the pipe clamp half body, and the fastener is provided with a cutting blade; the beneficial effects of the utility model are as follows: the cutting blade can be stuck into the surface of the plastic pipe through the fastening group, so as to ensure that the pipe clamp is tightly connected with the plastic pipe end and improve the tightness and sealing of the pipe clamp; the lining is driven to rotate by the driving member, so as to adjust the contact position of the cutting blade with the plastic pipe, so as to ensure that when the pipe clamp is disassembled and reinstalled, the pipe clamp and the plastic pipe are still kept in a tightly connected state, so as to solve the problem of unstable connection when the pipe clamp is reused. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model;
[0015] Figure 2 It is a schematic diagram of the pipe clamp half structure of the utility model;
[0016] Figure 3This is a schematic diagram of the lining structure of the utility model;
[0017] Figure 4 This utility model Figure 1 A is a partial enlarged schematic diagram;
[0018] In the figure, 1-pipe clamp half, 11-protective shell, 12-connecting ear, 13-lining groove, 14-slide groove, 15-fixing block, 2-gear, 21-cross groove, 3-lining, 31-cutting blade, 32-pin hole, 33-fixing pin, 4-half gear ring, 41-connecting rod, 5-cam, 51-screw, 6-round rod, 61-elastic member. DETAILED DESCRIPTION
[0019] In order to make the purpose, technical solutions and advantages of the utility model more clearly understood, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.
[0020] See also Figures 1 to 4 The utility model provides a mechanical connection device for connecting a plastic pipe and a groove pipe, and the mechanical connection device for connecting a plastic pipe and a groove pipe comprises: a group of pipe clamp half bodies 1, and both sides of a group of pipe clamp half bodies 1 are provided with connection ears 12; a fastening group arranged on a group of pipe clamp half bodies 1, and the fastening group comprises a driving member rotatably connected to a pipe clamp half body 1 and a fastener arranged at the output end of the driving member, and the fastener is arranged in a lining groove 13, and the lining groove 13 is arranged on the inner wall of the pipe clamp half body 1, and the fastener is provided with a cutting edge 31, and the circumferential angle of the cutting edge 31 is The angle of the cutting blade 31 is less than 150°, and the diameter of the cutting blade 31 is smaller than the inner diameter of the pipe clamp half 1, so that the cutting blade 31 can cut into the surface of the plastic pipe after the pipe clamp is tightened. The beneficial effects of the utility model are as follows: the cutting blade 31 can be stuck into the surface of the plastic pipe through the tightening group, so that the pipe clamp and the plastic pipe end are tightly connected, and the tightening and sealing of the pipe clamp are improved; the contact position of the cutting blade 31 and the plastic pipe can be adjusted by driving the lining 3 to rotate by the driving member, so that when the pipe clamp is disassembled and reinstalled, the pipe clamp and the plastic pipe are still kept in a tightly connected state, so as to solve the problem of unstable connection when the pipe clamp is reused.
[0021] See also Figures 1 to 4 Preferably, the driving member of the utility model is set as a gear 2, and a cross groove 21 is provided on the top of the gear 2, and the cross groove 21 is used to facilitate the control of the rotation of the gear 2. The gear 2 is meshed with a half gear ring 4, and the circumferential angle of the half gear ring 4 is less than 150°. The half gear ring 4 is fixed to a connecting rod 41, and the connecting rod 41 is fixed to a fastener, and the fastener can be driven to rotate through the gear 2.
[0022] See also Figures 1 to 4In addition, the fastener of the utility model is set as a group of linings 3, and the two ends of one lining 3 are respectively provided with a fixing pin 33 and a pin hole 32 that match each other, and the fixing pin 33 of one lining 3 is arranged in the pin hole 32 of another lining 3, ensuring that when the half gear ring 4 drives one lining 3 to rotate, the other lining 3 rotates synchronously.
[0023] See also Figures 1 to 4 Furthermore, a slide groove 14 is provided on the pipe clamp half body 1 of the utility model, and a connecting rod 41 is slidably connected in the slide groove 14 to ensure stable rotation of the lining 3.
[0024] See also Figures 1 to 4 Better yet, a protective shell 11 is provided on the pipe clamp half body 1 of the utility model, and the protective shell 11 is arranged outside the gear 2 to play a protective role.
[0025] See also Figures 1 to 4 , better, a group of linings 3 of the utility model is fixed with a round rod 6, the round rod 6 is inserted into the pipe clamp half body 1, and the round rod 6 is provided with an elastic member on its outer sleeve, the end of the round rod 6 abuts against the cam 5, the cam 5 is fixed to the screw 51, the screw 51 is rotatably connected to the fixed block 15, the fixed block 15 is fixed to the pipe clamp half body 1, the cutting blade 31 on the lining 3 is provided with a wide end and a narrow end, and the round rod 6 is provided at the wide end;
[0026] Working principle: a sealing rubber ring adapted to a set of pipe clamp half bodies 1 is sleeved on the connection between the groove pipe and the plastic pipe, a set of pipe clamp half bodies 1 is sleeved outside the sealing rubber ring, and fastened by bolts and nuts. At this time, a lining groove 13 is provided on the inner wall of the pipe clamp half body 1, a lining sheet 3 is provided in the lining groove 13, and a cutting blade 31 is provided on the lining sheet 3. The cutting blade 31 cuts into the surface of the plastic pipe to ensure the connection stability;
[0027] When the pipe is inspected and the pipe clamp is removed and reinstalled, before the two pipe clamp halves 1 are tightened, the gear 2 is controlled to rotate through the cross groove 21, and the gear 2 drives the half gear ring 4 to rotate, and the half gear ring 4 drives a group of mutually engaged linings 3 to rotate, ensuring that the contact position between the cutting edge 31 and the plastic pipe changes. After the adjustment is completed, the pipe clamp is tightened to ensure that the pipe clamp and the plastic pipe are still tightly connected, thereby solving the problem of unstable connection when the pipe clamp is reused;
[0028] After the pipe clamp is tightened, the cutting blade 31 cuts into the same thickness at both ends of the plastic pipe, and the lining 3 can move in the lining groove 13. When the pipe clamp is used for a long time, the screw 51 is turned to drive the maximum diameter on the cam 5 to abut against the round rod 6. The round rod 6 controls the wide end of the cutting blade 31 on the lining 3 to further cut into the plastic pipe, thereby solving the problem of loose connection after the pipe clamp is used for a long time; at this time, the matching fixing pins 33 and pin holes 32 at both ends of the lining 3 are provided with a certain moving space to facilitate the movement of the lining 3.
[0029] In summary, the utility model provides a mechanical connection device for connecting a plastic pipe and a groove pipe, comprising: a group of pipe clamp halves, both sides of the group of pipe clamp halves are provided with connecting ears; a fastening group arranged on a group of pipe clamp halves, the fastening group comprises a driving member rotatably connected to one pipe clamp half and a fastener arranged at the output end of the driving member, the fastener is arranged in a lining groove, the lining groove is arranged on the inner wall of the pipe clamp half, and the fasteners are provided with cutting edges; the beneficial effects of the utility model: the cutting edge can be stuck into the surface of the plastic pipe through the fastening group, ensuring that the pipe clamp is tightly connected to the plastic pipe end and improving the fastening and sealing of the pipe clamp; the lining is driven to rotate by the driving member, so that the contact position of the cutting edge and the plastic pipe can be adjusted, ensuring that when the pipe clamp is disassembled and reinstalled, the pipe clamp and the plastic pipe remain in a tightly connected state, solving the problem of unstable connection when the pipe clamp is reused.
[0030] Of course, the present invention may have many other embodiments. Without departing from the spirit and essence of the present invention, technicians familiar with the field can make various corresponding changes and deformations based on the present invention, but these corresponding changes and deformations should all fall within the scope of protection of the claims attached to the present invention.
Claims
1. A mechanical connection device for connecting a plastic pipe and a grooved pipe, characterized in that: include: A group of pipe clamp halves, both sides of which are provided with connecting ears; A fastening group is arranged on a group of pipe clamp halves, the fastening group includes a driving member rotatably connected to one pipe clamp half and a fastener arranged at the output end of the driving member, the fastener is arranged in a lining groove, the lining groove is arranged on the inner wall of the pipe clamp half, and the fasteners are all provided with cutting edges.
2. The mechanical connection device for connecting a plastic pipe and a grooved pipe according to claim 1, characterized in that: The driving member is configured as a gear, the gear is meshed with a half gear ring, the half gear ring is fixed to a connecting rod, the connecting rod is fixed to a fastener, and a cross groove is provided on the top of the gear.
3. The mechanical connection device for connecting a plastic pipe and a grooved pipe according to claim 2, characterized in that: The fastener is configured as a group of linings, and both ends of one lining are respectively provided with a fixing pin and a pin hole that match each other.
4. The mechanical connection device for connecting a plastic pipe and a grooved pipe according to claim 1, characterized in that: A sliding groove is provided on the pipe clamp half body, and a connecting rod is slidably connected in the sliding groove.
5. The mechanical connection device for connecting a plastic pipe and a grooved pipe according to claim 1, characterized in that: A protective shell is arranged on the pipe clamp half body, and the protective shell is arranged outside the gear.
6. The mechanical connection device for connecting a plastic pipe and a grooved pipe according to claim 3, characterized in that: A round rod is fixedly connected to the group of linings, the round rod is passed through the pipe clamp half, and an elastic member is arranged on the outer sleeve of the round rod. The end of the round rod abuts against a cam, the cam is fixed to a screw rod, the screw rod is rotatably connected to a fixed block, and the fixed block is fixed to the pipe clamp half.