Pipe feeding clamp for pouring pipeline

Abstract

The utility model discloses a pipe feeding clamp for pouring pipelines, which relates to the technical field of pipe feeding clamps for pouring pipelines and comprises a connecting shell. A base is arranged in the middle of the surface of the connecting shell, a positioning cylinder is arranged on the front surface of the base, a plurality of sliding grooves are formed in the surface of the positioning cylinder, and reset springs are arranged on the surfaces of the bottoms of the sliding grooves. According to the pipeline clamp, before the pipeline clamp is used for clamping a pouring pipeline, the pipeline can be positioned through the positioning barrel, it is guaranteed that the pouring pipeline is positioned accurately, and the phenomenon that the pouring pipeline is stressed unevenly due to the fact that clamping deviation occurs is avoided; and through the arrangement of the balls, friction connection between the pouring pipeline and the positioning cylinder can be changed into rolling connection. According to the physics principle, under the same pressure and contact condition, the use abrasion of the positioning cylinder is reduced, and the service life of the positioning cylinder is prolonged.

Description

Technical Field

[0001] This utility model relates to the technical field of pipe delivery clamps for pouring pipelines, specifically a pipe delivery clamp for pouring pipelines. Background Technology

[0002] In building construction, municipal engineering, and various industrial projects, the installation of concrete pipes is a crucial and common task. During the pouring process, the pipes need to be accurately positioned and fixed to ensure that concrete and other pouring materials are delivered to the designated location according to design requirements, while also ensuring that the pipes do not shift, shake, or become damaged during the pouring process.

[0003] Existing pipe clamps for concrete pouring typically employ simple clamps or support structures to hold and fix pipes, resulting in low positioning accuracy and difficulty in ensuring pipe concentricity and perpendicularity. This can lead to unsmooth subsequent pipe connections, affecting the sealing and stability of the entire pouring system. Furthermore, the lack of a positioning structure causes uneven force distribution when using the clamping claws, easily leading to pipe deformation and damage.

[0004] Therefore, in view of this, we studied and improved the existing structure to propose a pipe delivery clamp for casting pipelines. Utility Model Content

[0005] The purpose of this utility model is to provide a pipe delivery clamp for casting pipelines to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a pipe delivery clamp for casting pipelines, comprising a connecting shell, a base provided in the middle of the surface of the connecting shell, and a positioning cylinder provided on the front surface of the base, the positioning cylinder having multiple sliding grooves on its surface, a return spring provided on the bottom surface of the sliding groove, a sliding sleeve provided at the end of the return spring, a ball bearing rotatably mounted on the surface of the sliding sleeve, and a sliding connection between the sliding sleeve and the sliding groove, the connecting shell having a guide groove, an upper clamp body slidably mounted on the upper inner surface of the guide groove, and a lower clamp body slidably mounted on the lower inner surface of the guide groove.

[0007] Preferably, the upper clamp body includes a sliding plate disposed on the inner surface of the guide groove, and a hydraulic cylinder is disposed on the rear surface of the sliding plate, and the upper clamp body and the lower clamp body are connected by the hydraulic cylinder.

[0008] Preferably, guide frames are provided on both sides of the rear surface of the connecting shell, and sliders are slidably installed on the inner surface of the guide frames. Connecting rods are rotatably installed on both the front and rear surfaces of the sliders, and the ends of the connecting rods are rotatably connected to the support block surfaces of the lower clamp body and the upper clamp body, respectively.

[0009] Preferably, the front surface of the sliding plate is provided with a support block, and the inner surface of the support block is provided with an arc-shaped plate.

[0010] Preferably, a limiting slide rod is slidably installed through the surface of the arc-shaped plate, and a pressure relief spring is provided on the outer surface of the limiting slide rod.

[0011] Preferably, the upper outer surface of the limiting slide bar is provided with a threaded groove, and a connecting sleeve is spirally installed on the outer surface of the threaded groove, and the connecting sleeve and the pressure relief spring are configured as a friction connection.

[0012] Preferably, the lower surface of the limiting slide bar is provided with a claw, and the inner surface of the claw is provided with a groove.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. This utility model, through the arrangement of a connecting shell, base, positioning cylinder, sliding groove, return spring, sliding sleeve, ball bearings, guide groove, upper clamp body, lower clamp body, hydraulic cylinder, connecting rod, guide frame, and slider, utilizes the positioning cylinder to position the pipe before clamping it with the pipe clamp, ensuring accurate positioning of the pipe and preventing misalignment during clamping, thus avoiding uneven force on the pipe. The ball bearings transform the frictional connection between the pipe and the positioning cylinder into a rolling connection. According to physical principles, under the same pressure and contact conditions, the coefficient of rolling friction is much smaller than the coefficient of sliding friction, thus significantly reducing friction and wear on the positioning cylinder, extending its service life.

[0015] 2. This utility model, through the arrangement of a sliding plate, support block, arc plate, limiting slide rod, pressure relief spring, threaded groove, connecting sleeve, and clamping claws, utilizes the grooves on the clamping claws to cooperate with the grooves on the pipe, ensuring the pipe is securely installed on the clamping claws. When the upper and lower clamping claws clamp, they can move synchronously under the combined action of the guide slide groove, slider, and connecting rod, ensuring uniform force on the pipe within the clamping claws and preventing damage caused by uneven force. The pressure relief spring, through its elastic deformation characteristics, can automatically adjust the clamping force within a certain range when the clamping force from the hydraulic cylinder is too large, buffering the pressure from the squeezing and reducing the squeezing force on the pipe surface, thus providing pressure relief protection for the pipe. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the present invention;

[0017] Figure 2 This is a three-dimensional structural diagram of the hydraulic cylinder of this utility model;

[0018] Figure 3 This is a three-dimensional structural diagram of the positioning cylinder of this utility model;

[0019] Figure 4 This utility model Figure 1 Enlarged structural diagram at point A in the middle.

[0020] In the diagram: 1. Connecting shell; 101. Base; 102. Positioning cylinder; 103. Sliding groove; 104. Return spring; 105. Sliding sleeve; 106. Ball bearing; 2. Guide groove; 201. Upper clamp body; 202. Lower clamp body; 203. Hydraulic cylinder; 204. Connecting rod; 205. Guide frame; 206. Sliding block; 3. Sliding plate; 301. Support block; 302. Arc plate; 303. Limiting slide rod; 304. Pressure relief spring; 305. Threaded groove; 306. Connecting sleeve; 307. Claw. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] like Figures 1-3 As shown, a pipe delivery clamp for pouring pipes includes a connecting shell 1. A base 101 is provided in the middle of the surface of the connecting shell 1, and a positioning cylinder 102 is provided on the front surface of the base 101. The advantage of this arrangement is that, by setting the positioning cylinder 102, the pipe can be positioned before using the pipe clamp to clamp the pouring pipe, ensuring accurate positioning of the pouring pipe and avoiding deviation during clamping, which would cause uneven force on the pouring pipe.

[0023] Furthermore, the surface of the positioning cylinder 102 is provided with multiple sliding grooves 103, and the bottom surface of the sliding groove 103 is provided with a return spring 104. The advantage of this arrangement is that, by setting the return spring 104, the ball 106 can be made to fit against the inner surface of the pipe by compression and reset.

[0024] Furthermore, a sliding sleeve 105 is provided at the end of the return spring 104, and a ball bearing 106 is rotatably mounted on the surface of the sliding sleeve 105. The sliding sleeve 105 and the sliding groove 103 are configured for a sliding connection. The advantage of this configuration is that, through the ball bearing 106, the frictional connection between the casting pipe and the positioning cylinder 102 can be transformed into a rolling connection. According to the principles of physics, under the same pressure and contact conditions, the coefficient of rolling friction is much smaller than the coefficient of sliding friction, thereby significantly reducing friction and thus reducing wear on the positioning cylinder 102, and improving its service life.

[0025] Furthermore, a guide groove 2 is provided on the surface of the connecting shell 1, and an upper clamping body 201 is slidably installed on the upper inner surface of the guide groove 2, and a lower clamping body 202 is slidably installed on the lower inner surface of the guide groove 2. The advantage of this setting is that the upper clamping body 201 and the lower clamping body 202 can be guided and limited by the setting of the guide groove 2.

[0026] Furthermore, the upper clamping body 201 includes a sliding plate 3 disposed on the inner surface of the guide groove 2, and a hydraulic cylinder 203 is disposed on the rear surface of the sliding plate 3. The upper clamping body 201 and the lower clamping body 202 are connected by the hydraulic cylinder 203. The advantage of this arrangement is that the hydraulic cylinder 203 can drive the upper clamping body 201 and the lower clamping body 202 to move inward.

[0027] Furthermore, guide frames 205 are provided on both sides of the rear surface of the connecting shell 1, and sliders 206 are slidably installed on the inner surface of the guide frames 205. Connecting rods 204 are rotatably installed on the front and rear ends of the sliders 206, and the ends of the connecting rods 204 are rotatably connected to the support blocks 301 of the lower clamp body 202 and the upper clamp body 201, respectively. The advantage of this arrangement is that the guide frames 205 can limit the sliding of the sliders 206, and the sliders 206 pull the connecting rods 204 to rotate, so as to ensure the synchronous sliding of the upper clamp body 201 and the lower clamp body 202.

[0028] like Figure 4 As shown, a support block 301 is provided on the front surface of the sliding plate 3, and an arc-shaped plate 302 is provided on the inner surface of the support block 301. A limit slide rod 303 is slidably installed through the surface of the arc-shaped plate 302, and a pressure relief spring 304 is provided on the outer surface of the limit slide rod 303. The advantage of this arrangement is that, by setting the pressure relief spring 304, when the clamping force brought by the oil cylinder 203 is too large, the elastic deformation characteristics of the pressure relief spring 304 can automatically adjust the clamping force within a certain range to buffer the pressure brought by the squeezing, reduce the squeezing force brought by the claw 307 on the pipe surface, and protect the pipe from pressure relief.

[0029] Furthermore, the upper outer surface of the limiting slide bar 303 is provided with a threaded groove 305, and a connecting sleeve 306 is spirally installed on the outer surface of the threaded groove 305. The connecting sleeve 306 and the pressure relief spring 304 are configured to be in frictional connection. The advantage of this configuration is that, by setting the threaded groove 305, the pressure relief threshold of the pressure relief spring 304 can be adjusted by driving the connecting sleeve 306 to slide.

[0030] Furthermore, the lower surface of the limiting slide bar 303 is provided with a claw 307, and the inner surface of the claw 307 is provided with a groove. The advantage of this setting is that the groove on the claw 307 cooperates with the groove on the pipe, so that the pipe is securely installed on the claw 307. When the upper and lower claws 307 are clamped, they can move synchronously under the combined action of the guide slide groove 2, the slider 206 and the connecting rod 204, so that the pipe inside the claw 307 is subjected to uniform force, and the pipe is prevented from being damaged due to uneven force.

[0031] Working principle: When using this pipe delivery clamp for casting, before clamping the pipe, the inner wall of the pipe is first slidably inserted into the outer surface of the positioning cylinder 102. The evenly distributed balls 106 on the outer surface of the positioning cylinder create rolling friction with the inner wall of the pipe, greatly reducing the contact resistance between them. The return spring 104 located below the balls 106 provides adaptive adjustment, precisely adjusting the position of the balls 106 through elastic compression according to changes in the inner wall size of the pipe, ensuring that the balls 106 always fit tightly against the inner wall of the pipe, achieving high-precision positioning and installation.

[0032] After positioning, the hydraulic cylinder 203 drives the upper clamp body 201 and the lower clamp body 202 to slide inward synchronously along the guide groove 2. During this process, the connecting rod 204 on the sliding plate 3 rotates precisely through the sliding guide of the slider 206 inside the guide frame 205, ensuring that the upper and lower clamps clamp synchronously. Finally, the grooved claws 307 tightly engage with the corresponding grooves on the outer surface of the casting pipe, completing a stable clamping.

[0033] If excessive clamping force is generated when the hydraulic cylinder 203 tightens, the pressure relief spring 304 will quickly exert its elastic deformation characteristics to release the excess pressure through compression, thus achieving dynamic pressure relief. This mechanism can automatically adjust the clamping force within a reasonable range, effectively avoiding problems such as deformation and damage to the pipeline due to excessive force, and providing reliable protection for the cast-in-place pipeline. This is the working principle of the cast-in-place pipeline delivery clamp.

Claims

1. A pouring duct pipe handling fixture comprising a connecting housing (1), characterized in that, The surface middle part of the connecting shell (1) is provided with a base (101), and the front surface of the base (101) is provided with a positioning cylinder (102), the surface of the positioning cylinder (102) is provided with a plurality of sliding grooves (103), and the bottom surface of the sliding groove (103) is provided with a reset spring (104), the end of the reset spring (104) is provided with a sliding sleeve (105), the surface of the sliding sleeve (105) is rotatably installed with a ball (106), and the sliding sleeve (105) and the sliding groove (103) are slidably connected, the surface of the connecting shell (1) is provided with a guide sliding groove (2), and the upper end inner surface of the guide sliding groove (2) is slidably installed with an upper clamp body (201), and the lower end inner surface of the guide sliding groove (2) is slidably installed with a lower clamp body (202).

2. A pipe-handling clamp for a pipe-laying installation according to claim 1, characterised in that The upper clamp body (201) includes a sliding plate (3) provided on the inner surface of the guide sliding groove (2), and the rear surface of the sliding plate (3) is provided with an oil cylinder (203), and the upper clamp body (201) and the lower clamp body (202) are connected by the oil cylinder (203).

3. A pipe-handling clamp for a pipe-laying installation according to claim 1, characterized in that The rear surface of the connecting shell (1) is provided with a guide frame (205) on both sides, and the inner surface of the guide frame (205) is slidably installed with a sliding block (206), the front and rear end surfaces of the sliding block (206) are rotatably installed with a connecting rod (204), and the ends of the connecting rod (204) are rotatably connected with the surface of the supporting block (301) of the lower clamp body (202) and the upper clamp body (201) respectively.

4. A pipe-handling clamp for a pipe-laying installation according to claim 2, characterised in that The front surface of the sliding plate (3) is provided with a supporting block (301), and the inner surface of the supporting block (301) is provided with an arc plate (302).

5. A pipe pushing fixture for use in placing a pipe in a trench according to claim 4, wherein, The surface of the arc plate (302) is slidably installed with a limiting slide rod (303), and the outer surface of the limiting slide rod (303) is provided with a pressure relief spring (304).

6. A pipe pushing fixture for use in placing a pipe in a trench according to claim 5, wherein, The upper end outer surface of the limiting slide rod (303) is provided with a threaded groove (305), and the outer surface of the threaded groove (305) is spirally installed with a connecting sleeve (306), and the connecting sleeve (306) and the pressure relief spring (304) are frictionally connected.

7. A pipe-handling clamp for a pipe-laying installation according to claim 5, characterised in that The lower surface of the limiting slide rod (303) is provided with a clamping jaw (307), and the inner surface of the clamping jaw (307) is provided with a groove.

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