Novel cast iron pipe hoop connecting device

Abstract

The utility model discloses a novel cast iron pipe clamp connecting device. The novel cast iron pipe clamp connecting device comprises a first clamp body, a second clamp body and a clamping bolt. The first hoop main body and the second hoop main body are semicircular, and the side parts of the first hoop main body and the second hoop main body extend and are provided with aligned insertion holes; the clamping plug pin comprises a clamping part and a sleeve, and the sleeve is installed in the inserting hole in an inserted mode and abuts against the first clamp body. The clamping part is installed in the sleeve and stretches out to abut against the second clamp body. The clamping part is suitable for being separated from the contact with the second clamp main body by pressing the clamping part; the clamping part is further suitable for being matched with the sleeve through a locking structure, and locking or unlocking can be conducted by rotating the clamping part. Compared with an existing container meter, a traditional nut clamped by the hoop body is designed to be the clamping plug pin, the traditional nut is easy to slip when being screwed too tightly, a medium in a pipeline is easy to flow out when the screwing degree is not enough, and the stability is high due to the fact that the clamping plug pin is not arranged.

Description

Technical Field

[0001] The present application relates to the field of clamps, and in particular to a novel cast iron pipe clamp connection device. Background Art

[0002] The clamp is a simple and effective mechanical connector, which is widely used in the connection and fixation of various pipes and containers. Its main function is to tightly connect the pipe or container with the fittings by clamping or buckling, ensuring the sealing and stability of the connection.

[0003] The existing clamps have the following main problems when in use:

[0004] (1) The existing clamp is difficult to disassemble during use, and the disassembly process is very cumbersome.

[0005] (2) When the existing clamp is used, if the nut is tightened too much, it is easy to cause the nut to slip, and if the nut is not tightened enough, it is easy to cause the medium in the connected pipe to leak.

[0006] Therefore, it is now necessary to transform the existing cast iron pipe clamp connection device. Utility Model Content

[0007] The purpose of the present application is to provide a cast iron pipe clamp connection device that can solve at least one defect in the above-mentioned background technology.

[0008] In order to achieve at least one of the above-mentioned purposes, the technical solution adopted in the present application is: a new cast iron pipe clamp connection device, comprising a first clamp body, a second clamp body and a clamping pin; the first clamp body and the second clamp body are semicircular and have aligned sockets extending from the side; the clamping pin comprises a clamping portion and a sleeve, the sleeve is plugged and installed in the socket and abuts against the first clamp body; the clamping portion is installed inside the sleeve and extends out to abut against the second clamp body; the clamping portion is suitable for breaking away from contact with the second clamp body by pressing; the clamping portion is also suitable for cooperating with the sleeve through a locking structure, and is suitable for locking or unlocking by rotating the clamping portion.

[0009] Preferably, the clamping portion includes a driving member and at least one clamping member; the driving member is elastically mounted inside the sleeve through an elastic member, and the clamping member is hingedly mounted on the bottom end of the driving member; at least one open groove is provided on the side of the sleeve, and when the driving member moves vertically, the clamping member is suitable for tilting against the upper end of the open groove and rotating along the installation position, thereby extending out of the sleeve.

[0010] Preferably, the clamping member is elastically rotatably mounted on the bottom end of the driving member via a torsion spring, and when the driving member moves vertically, the clamping member rotates and extends out of the sleeve under the elastic force of the torsion spring.

[0011] Preferably, there are a plurality of the clamping members and the opening grooves.

[0012] Preferably, the driving member includes a first driving rod and a second driving rod; the first driving rod is connected to the sleeve via a locking structure, and the second driving rod is rotationally connected to the clamping member; the first driving rod is suitable for locking or unlocking the driving member by rotating relative to the second driving rod.

[0013] Preferably, the locking structure includes a locking block and a locking groove; the locking block is arranged on the outer side of the first driving rod, and the locking groove is arranged on the inner wall of the sleeve; or the locking block is arranged on the inner wall of the sleeve, and the locking groove is arranged on the outer side of the first driving rod; the locking block and the locking groove are spiral and the inclination angle of the locking block and the locking groove is smaller than the friction angle of the locking block and the locking groove.

[0014] Preferably, there are multiple locking blocks and locking grooves and they are equidistantly distributed along the axial direction.

[0015] Preferably, a fixing disk is provided in the sleeve, one end of the elastic member abuts against the fixing disk and the other end abuts against the driving member; the elastic member is suitable for driving the driving member to reset after the locking block is unlocked.

[0016] Preferably, the lower rod section of the second driving rod is arranged as a hollow structure, and the clamping part is suitable for being retracted into the hollow structure; a limiting member is arranged at the bottom end of the second driving rod, and the limiting member is suitable for limiting the clamping member from rotating toward a side away from the second clamp body.

[0017] Preferably, a positioning plate is provided on the outer side of the sleeve along the circumferential direction, and the positioning plate is suitable for abutting against the first clamp body, and then cooperating with the clamping member to clamp the first clamp body and the second clamp body.

[0018] Compared with the prior art, the beneficial effects of this application are:

[0019] Compared with the existing clamp connection device, the traditional nut that clamps the clamp body is designed as a clamping pin. If the traditional nut is over-tightened, it is easy to strip the thread, and if it is not tightened enough, it is easy to cause the medium in the pipeline to flow out. It does not have high stability without a clamping pin, and it is not easy to disassemble without a clamping pin. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0021] Figure 2 It is an exploded view of the overall structure of the utility model.

[0022] Figure 3 It is a cross-sectional schematic diagram of the utility model when locked.

[0023] Figure 4 For this utility model Figure 3 A local enlarged schematic diagram of point A in the middle.

[0024] Figure 5 It is a cross-sectional schematic diagram of the utility model when unlocking.

[0025] Figure 6 It is a structural schematic diagram of the locking block and the locking groove of the utility model.

[0026] In the figure: a first clamp body 1, a second clamp body 10, a clamping pin 2, a clamping portion 20, a first drive rod 200, a convex groove 2001, a locking block 2002, a second drive rod 201, a clamping member 202, a convex member 2010, a placement groove 2011, a limit member 2012, a sleeve 21, a positioning plate 210, an opening groove 211, a locking groove 220, a spring 3, and a fixing plate 4. DETAILED DESCRIPTION

[0027] Below, the present application is further described in conjunction with specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0028] In the description of the present application, it should be noted that directional words, such as the terms "center", "lateral", "longitudinal", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc., indicating directions and positional relationships are based on the directions or positional relationships shown in the accompanying drawings, which are only for the convenience of narrating the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and cannot be understood as limiting the specific scope of protection of the present application.

[0029] It should be noted that the terms "first", "second", etc. in the description and claims of the present application are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence.

[0030] The terms "including" and "having" and any variations thereof in the specification and claims of this application are intended to cover non-exclusive inclusions. For example, a process, method, system, product or apparatus comprising a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to these processes, methods, products or apparatuses.

[0031] One of the preferred embodiments of the present application is as follows: Figures 1 to 6 As shown, a novel cast iron pipe clamp connection device comprises a first clamp body 1, a second clamp body 10 and a clamping pin 2. The first clamp body 1 and the second clamp body 10 are semicircular and have aligned insertion holes extending from the side. The clamping pin 2 comprises a clamping portion 20 and a sleeve 21. The sleeve 21 is inserted and installed in the insertion hole and abuts against the first clamp body 1. The clamping portion 20 is installed inside the sleeve 21 and extends out to abut against the second clamp body 10. The clamping portion 20 is suitable for being separated from the contact with the second clamp body 10 by pressing. The clamping portion 20 can also cooperate with the sleeve 21 through a locking structure, and can be locked or unlocked by rotating the clamping portion 20.

[0032] It should be known that if the nut of a traditional clamp connection device is over-tightened, the thread may easily slip, and if the nut is not tightened enough, the clamp connection device may easily loosen, causing the medium in the pipeline to flow out. In addition, the traditional clamp connection device is not easy to disassemble, making the entire clamp connection device very cumbersome to use, and its stability needs to be improved.

[0033] Therefore, in the present embodiment, by improving the nut provided on the traditional clamp connection device into a clamping pin 2, the clamping state between the first clamp body 1 and the second clamp body 10 is made more secure, and the clamping pin 2 will not be stripped, and the clamping state can be always maintained without being unlocked after clamping, thereby improving the stability of the clamp connection device.

[0034] In this embodiment, Figures 1 to 3 As shown, the first clamp body 1 and the second clamp body 10 are provided with a socket extending from the side, and the clamping pin 2 is inserted into the socket for installation. The clamping part 20 includes a first driving rod 200 and a second driving rod 201, and the first driving rod 200 and the second driving rod 201 are rotatably connected.

[0035] It should be known that a positioning plate 210 is provided along the circumferential direction on the outside of the sleeve 21, and the diameter of the positioning plate 210 is larger than the diameter of the sleeve 21. The sleeve 21 is installed through the insertion hole extending from the side of the first clamp body 1 and the second clamp body 10. When the sleeve 21 is inserted into the insertion hole, the positioning plate 210 abuts against the side of the first clamp body 1 to limit the clamping pin 2. The clamping part 20 also includes a clamping member 202, which is rotatably installed at the bottom end of the second driving rod 201. By driving the first driving rod 200, the second driving rod 201 drives the clamping member 202 to extend out of the sleeve 21 and abut against the side of the second clamp body 10, thereby clamping the first clamp body 1 and the second clamp body 10.

[0036] In this embodiment, there are various specific structures that can realize the rotatable installation of the clamping member 202 on the bottom end of the second driving rod 201, including but not limited to the following two.

[0037] Structure 1: The clamping member 202 is rotatably mounted on the bottom end of the second driving rod 201 through a torsion spring. When the second driving rod 201 moves vertically, the clamping member 202 rotates and extends out of the sleeve 21 under the elastic force of the torsion spring.

[0038] Structure 2: A plurality of opening grooves 211 are provided on the side of the sleeve 21, and the clamping part 20 is elastically installed inside the sleeve 21 through an elastic member, and the clamping member 202 is hingedly installed at the bottom end of the second driving rod 201. When the second driving rod 201 moves vertically, the clamping member 202 can be tilted against the upper end of the opening groove 211 and rotate along the installation position, thereby extending out of the sleeve 21.

[0039] It should be known that the above two structures can both meet the requirements of this application, and those skilled in the art can make their own selection according to actual needs.

[0040] In this embodiment, Figures 2 to 4 As shown, a convex groove 2001 is provided at the bottom of the first driving rod 200 , and a convex piece 2010 is vertically extended from the top of the second driving rod 201 . The first driving rod 200 and the second driving rod 201 are movably connected through the convex groove 2001 and the convex piece 2010 .

[0041] It can be understood that the first drive rod 200 and the second drive rod 201 are movably connected through the convex piece 2010 and the convex groove 2001, and the first drive rod 200 and the sleeve 21 are locked by the locking structure. The first drive rod 200 is driven to drive the second drive rod 201 to drive the clamping piece 202 to extend radially and abut against the side extension of the second clamp body 10, thereby clamping the first clamp body 1 and the second clamp body 10. The first drive rod 200 and the sleeve 21 are locked by rotating them, so that the first drive rod 200 and the second drive rod 201 drive the clamping piece 202 to keep the first clamp body 1 and the second clamp body 10 in a clamped state.

[0042] In this embodiment, Figure 5 , 6 As shown, the locking structure includes a locking block 2002 and a locking groove 220. The locking block 2002 and the locking groove 220 are spiral-shaped, and the inclination angle of the locking block 2002 and the locking groove 220 is smaller than the friction angle of the locking block 2002 and the locking groove 220. There are many specific structures between the locking block 2002 and the locking groove 220, including but not limited to the following two.

[0043] Structure 1: The locking block 2002 is arranged on the outer side of the first driving rod 200, and the locking groove 220 is arranged on the inner wall of the sleeve 21. Specifically, the first driving rod 200 is rotated to drive the locking block 2002 and the locking groove 220 to rub against each other, thereby forming a friction self-locking, so that the first driving rod 200 and the second driving rod 201 drive the clamping member 202 to lock, so as to keep the first clamp body 1 and the second clamp body 10 clamped.

[0044] Structure 2: The locking block 2002 is arranged on the inner wall of the sleeve 21, and the locking groove 220 is arranged on the outer side of the first driving rod 200. Specifically, the first driving rod 200 is rotated to drive the locking groove 220 and the locking block 2002 to rub against each other, thereby forming a friction self-locking, so that the first driving rod 200 and the second driving rod 201 drive the clamping member 202 to lock, so as to keep the first clamp body 1 and the second clamp body 10 clamped.

[0045] It should be known that the above two structures can both meet the requirements of this application, and those skilled in the art can make their own selection according to actual needs.

[0046] It can be understood that the locking block 2002 is arranged on the outer side of the first driving rod 200, and the locking groove 220 is arranged on the inner wall of the sleeve 21. By driving the first driving rod 200, the second driving rod 201 is driven to drive the clamping member 202 to extend radially. After the clamping member 202 is radially extended and abuts against the second clamp body 10, the first driving rod 200 is rotated to make the locking block 2002 and the locking groove 220 rub against each other, thereby generating friction self-locking, thereby locking the first driving rod 200 and the second driving rod 201 as well as the clamping member 202 in the vertical direction, so that the clamping pin 2 always keeps the first clamp body 1 and the second clamp body 10 in a clamped state.

[0047] It is also understandable that there can be multiple locking blocks 2002 and locking grooves 220 and they can be equally spaced along the axial direction. When the clamping latch 2 needs to be disassembled, it is only necessary to rotate the first driving rod 200 to release the self-locking state of the locking block 2002 and the locking groove 220, and the first driving rod 200 and the second driving rod 201 will drive the clamping member 202 to retract into the inside of the clamping latch 2.

[0048] In this embodiment, Figure 6As shown, there can be multiple locking blocks 2002 and locking grooves 220. Specifically, by pulling the first driving rod 200 to drive the second driving rod 201 to drive the clamping member 202 to extend radially, when the clamping member 202 and the side extension of the second clamp body 10 are against each other, the first driving rod 200 is rotated to lock the clamping part 20. The multiple locking blocks 2002 and locking grooves 220 can make the clamping pin 2 adapt to different models of clamp connection devices, and can also avoid the problem that the locking blocks 2002 and locking grooves 220 may become loose during self-locking, so that the clamping member 202 shrinks back into the clamping pin 2, resulting in the loosening of the clamp connection device.

[0049] In this embodiment, Figures 3 to 5 As shown, a fixed disk 4 is provided inside the sleeve 21, and the second drive rod 201 can be installed through a socket provided at the top of the fixed disk 4. The second drive rod 201 can be slidably installed inside the sleeve 21 through an elastic member, and the elastic member is suitable for driving the clamping part 20 to reset after the locking block 2002 is unlocked.

[0050] It can be understood that the fixed disk 4 is fixedly installed inside the sleeve 21, the elastic member is a spring 3, and the second drive rod 201 is elastically slidably installed inside the sleeve 21 through the spring 3. When the clamping pin 2 needs to be removed, the first drive rod 200 is rotated to release the self-locking state of the locking block 2002 and the locking groove 220, so that the spring 3 elastically drives the second drive rod 201 to drive the first drive rod 200 and the clamping member 202 to retract into the clamping pin 2.

[0051] In this embodiment, Figure 2 and Figure 5 As shown, the lower rod section of the second driving rod is provided with a placement groove 2011. After the locking block 2002 and the locking groove 220 are released from self-locking, the second driving rod 201 can drive the clamping member 202 to retract into the placement groove 2011. A limit member 2012 is extended from the bottom end of the second driving rod 201, and the limit member 2012 limits the clamping member 202 from rotating counterclockwise when it abuts against the side extension of the second clamp body 10.

[0052] The above describes the basic principles, main features and advantages of the present application. Those skilled in the art should understand that the present application is not limited by the above embodiments, and the above embodiments and the specification only describe the principles of the present application. The present application may have various changes and improvements without departing from the spirit and scope of the present application, and these changes and improvements fall within the scope of the present application for which protection is sought. The scope of protection claimed by the present application is defined by the attached claims and their equivalents.

Claims

1. A new type of cast iron pipe clamp connection device, characterized in that: include: A first clamp body, a second clamp body and a clamping pin; the first clamp body and the second clamp body are semicircular and have aligned sockets extending from the sides; the clamping pin includes a clamping portion and a sleeve, the sleeve is plugged and installed in the socket and abuts against the first clamp body; the clamping portion is installed inside the sleeve and extends out to abut against the second clamp body; the clamping portion is suitable for being separated from the contact with the second clamp body by pressing; the clamping portion is also suitable for cooperating with the sleeve through a locking structure, and is suitable for locking or unlocking by rotating the clamping portion.

2. A novel cast iron pipe clamp connection device as claimed in claim 1, characterized in that: The clamping part includes a driving member and at least one clamping member; the driving member is elastically installed inside the sleeve through an elastic member, and the clamping member is hingedly installed at the bottom end of the driving member; at least one open groove is provided on the side of the sleeve, and when the driving member moves vertically, the clamping member is suitable for tilting against the upper end of the open groove and rotating along the installation position, thereby extending out of the sleeve.

3. A new cast iron pipe clamp connection device as claimed in claim 2, characterized in that: The clamping member is elastically rotatably mounted on the bottom end of the driving member through a torsion spring. When the driving member moves vertically, the clamping member rotates and extends out of the sleeve under the elastic force of the torsion spring.

4. A novel cast iron pipe clamp connection device as claimed in claim 2, characterized in that: There are a plurality of the clamping members and the opening slots.

5. A novel cast iron pipe clamp connection device as claimed in claim 2, characterized in that: The driving member includes a first driving rod and a second driving rod; the first driving rod is connected to the sleeve through a locking structure, and the second driving rod is rotationally connected to the clamping member; the first driving rod is suitable for locking or unlocking the driving member by rotating relative to the second driving rod.

6. A novel cast iron pipe clamp connection device as claimed in claim 5, characterized in that: The locking structure includes a locking block and a locking groove; the locking block is arranged on the outer side of the first driving rod, and the locking groove is arranged on the inner wall of the sleeve; or the locking block is arranged on the inner wall of the sleeve, and the locking groove is arranged on the outer side of the first driving rod; the locking block and the locking groove are spiral-shaped and the inclination angle of the locking block and the locking groove is smaller than the friction angle of the locking block and the locking groove.

7. A novel cast iron pipe clamp connection device as claimed in claim 6, characterized in that: There are a plurality of locking blocks and locking grooves, which are evenly distributed along the axial direction.

8. A novel cast iron pipe clamp connection device as claimed in claim 7, characterized in that: A fixing disk is arranged in the sleeve, one end of the elastic member abuts against the fixing disk and the other end abuts against the driving member; the elastic member is suitable for driving the driving member to reset after the locking block is unlocked.

9. A novel cast iron pipe clamp connection device as claimed in claim 5, characterized in that: The lower rod section of the second driving rod is set as a hollow structure, and the clamping part is suitable for shrinking into the hollow structure; a limiting piece is set at the bottom end of the second driving rod, and the limiting piece is suitable for limiting the clamping piece from rotating to a side away from the second clamp body.

10. A novel cast iron pipe clamp connection device as claimed in claim 2, characterized in that: A positioning plate is arranged on the outer side of the sleeve along the circumferential direction. The positioning plate is suitable for abutting against the first clamp body, and then cooperating with the clamping member to clamp the first clamp body and the second clamp body.

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