Butterfly valve rubber ring installation fixture

Abstract

The present invention belongs to the technical field of rubber ring installation, and discloses a butterfly valve rubber ring installation fixture, including a fixed support plate and a movable support plate, wherein the fixed support plate and the movable support plate are provided with a top support rod 1 and a top support rod 2 on the movable sleeve, and the fixed support plate is also fixedly installed with a fixed rod, and the movable support plate is provided with a fixed rod on the movable sleeve, and an elastic support component is supported and arranged between the fixed rod and the top support rod 1 and the top support rod 2, and the ends of the top support rod 1 and the top support rod 2 are respectively provided with a clamping component and a rolling wheel for supporting the rubber ring from the inside and installing it in the butterfly valve installation groove. The present invention forms a three-point support for the rubber ring, and the top support rod 1 is divided into three parts: horizontal section 1, raised section and horizontal section 2, so as to change the position of the top support rod 1 when the movable support plate moves and passes through the horizontal section 1, raised section and horizontal section 2 respectively, and cooperate with the rolling wheel to press the rubber ring into the installation groove.

Description

Technical Field

[0001] The invention belongs to the technical field of rubber ring installation, in particular to a butterfly valve rubber ring installation fixture. Background Art

[0002] The rubber ring of the butterfly valve is used to form a seal when the valve plate is closed. The traditional method is to manually assemble the rubber ring into the inside of the butterfly valve. This installation method has gradually been replaced by the corresponding fixture installation method. Figure 6 As shown in the figure, this is a commonly used clamp currently. It is mainly set up in a form similar to a three-jaw chuck to hold the rubber ring outward, and then unfold it inside the butterfly valve to install the rubber ring into the groove. However, the disadvantages of this clamp are also obvious. When it is not unfolded, the rubber ring is in a loose state and is easy to fall off during the carrying process. In addition, it is impossible to further roll the rubber ring. The rolling operation requires manual pressing or other machine station processing. Therefore, it can only play the role of preliminary assembly and there is a possibility of error.

[0003] Therefore, the present application proposes a butterfly valve rubber ring installation fixture to overcome the above-mentioned defects. Summary of the invention

[0004] In order to solve the problems raised in the above background technology, the present invention provides a butterfly valve rubber ring installation fixture.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a butterfly valve rubber ring installation fixture, comprising a fixed support plate and a movable support plate, wherein the fixed support plate and the movable support plate are provided with a top support rod 1 and a top support rod 2 on the movable sleeve, the fixed support plate is also fixedly installed with a fixed rod, the movable support plate is provided with a movable sleeve on the fixed rod, an elastic support assembly is supported and arranged between the fixed rod and the top support rod 1 and the top support rod 2, and the ends of the top support rod 1 and the top support rod 2 are respectively provided with a clamping assembly and a rolling wheel for supporting the rubber ring from the inside and installing it in the butterfly valve installation groove;

[0006] The supporting rod 1 is composed of a horizontal section 1, a raised section and a horizontal section 2, and a slide groove 1 is provided on the fixed support plate and the movable support plate for the supporting rod 1 to move along the radial direction of the fixed support plate and the movable support plate;

[0007] The fixed support plate is provided with a cylinder for supporting the movable support plate to move along the fixed rod.

[0008] Preferably, the clamping assembly comprises a clamping member, a fixing cylinder and an ejector pin, wherein the fixing cylinder and the ejector pin are used to push the clamping member to clamp or release the rubber ring, and a spring for elastically supporting the ejector pin is arranged inside the fixing cylinder.

[0009] Preferably, the clamping member is divided into two parts, clamp block 1 and clamp block 2, the clamp block 2 is fixedly mounted on the horizontal section 2 and the clamp block 1 is movably sleeved on the horizontal section 2, the ejector pin penetrates the clamp block 2 and is fixedly connected to the clamp block 1, and the ejector pin moves along the axial direction of the fixed cylinder to open or tighten the clamp block 1;

[0010] The spring arranged in the fixing cylinder supports the ejector in a direction opposite to the butterfly valve.

[0011] Preferably, a support block is further provided on the clamping block 2, and the support block is used to raise the rubber ring or limit the distance between the clamping block 1 and the clamping block 2.

[0012] Preferably, the end position of the ejector pin is located between the raised section and the second horizontal section in an initial state.

[0013] Preferably, the elastic support assembly includes a telescopic rod 1 and a telescopic rod 2, the telescopic rod 1 and the telescopic rod 2 are used to support the top support rod 1 and the top support rod 2 respectively, the fixed support plate and the movable support plate are also provided with a corresponding slide groove 2, the available travel distance of the slide groove 2 is shorter than that of the slide groove 1, and the top support rod 2 is movably arranged in the slide groove 2;

[0014] The extension directions of the first slide groove and the second slide groove both point to the central axis of the fixing rod.

[0015] Preferably, a circle of receiving grooves is provided on the circumferential surface of the rolling wheel, and the edges of the receiving grooves are processed with arc transition.

[0016] Preferably, at least two auxiliary limit rods are installed on the movable support plate, and the two auxiliary limit rods are symmetrically arranged. The outer sleeve of the telescopic rod one extends downward to the bottom of the fixed rod. The clamping assembly can clamp the rubber ring and move it below the horizontal position of the rolling wheel. The rubber ring is sleeved on the rolling wheel, the clamping assembly and the auxiliary limit rod.

[0017] Preferably, a connecting seat is installed on the back side of the fixed support plate for connecting the driving spindle.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] The present invention forms three-point support for the rubber ring by installing rolling wheels and clamping components on two top support rods 2 and one top support rod 1, respectively. The top support rod 1 is divided into three parts: horizontal section 1, raised section and horizontal section 2, so that when the movable support plate moves and passes through horizontal section 1, raised section and horizontal section 2, the position of the top support rod 1 changes, and the rubber ring is pressed into the installation groove in cooperation with the rolling wheels. At the same time, the clamp can be driven by the main shaft, and after the rubber ring is initially inserted into the groove, the rolling wheel rolls around the rubber ring, so that the rubber ring is further fully inserted into the groove and stabilized.

[0020] By fixing the clamp block 2 on the horizontal section 2 and making the clamp block 1 movable, the rubber ring can be clamped or released by operating the clamp block 1 along the horizontal section 2. The ejector pin is supported in the opposite direction of the butterfly valve by the spring arranged inside the fixed cylinder, so that when the ejector pin is not supported by the movable support plate, the space between the clamp block 1 and the clamp block 2 is tightened and closed to clamp the rubber ring, preventing the rubber ring from falling off when being carried, and compared with Figure 6 Different from the prior art, the clamp of the present application is supported radially outward, and the positioning and installation are more precise. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the structure of the present invention;

[0022] Figure 2 It is a forward schematic diagram of the present invention;

[0023] Figure 3 It is a schematic diagram of the rear side of the present invention;

[0024] Figure 4 It is a schematic diagram of the coordination of the movable paperboard, the ejector pin and the clamping block 2 of the present invention;

[0025] Figure 5 It is a schematic diagram of a second embodiment of the present invention;

[0026] Figure 6 It is a schematic diagram of a conventional clamp of the present invention.

[0027] In the figure: 100, fixed support plate; 101, slide groove 1; 102, slide groove 2; 103, connecting seat; 200, movable support plate; 300, top support rod 1; 301, horizontal section 1; 302, raised section; 303, horizontal section 2; 400, top support rod 2; 401, rolling wheel; 500, fixed rod; 600, elastic support assembly; 601, telescopic rod 1; 602, telescopic rod 2; 700, cylinder; 800, clamping assembly; 801, clamping piece; 8011, clamping block 1; 8012, clamping block 2; 8013, support block; 802, fixed cylinder; 803, ejector pin; 900, auxiliary limit rod. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0029] like Figures 1 to 5As shown, the present invention provides a butterfly valve rubber ring installation fixture, including a fixed support plate 100 and a movable support plate 200, a top support rod 1 300 and a top support rod 2 400 are movably sleeved on the fixed support plate 100 and the movable support plate 200, a fixed rod 500 is also fixedly installed on the fixed support plate 100, and the movable support plate 200 is movably sleeved on the fixed rod 500, and an elastic support assembly 600 is supported and arranged between the fixed rod 500 and the top support rod 1 300 and the top support rod 2 400, and the ends of the top support rod 1 300 and the top support rod 2 400 are respectively provided with a clamping assembly 800 and a rolling wheel 401 for supporting the rubber ring from the inside and installing it in the butterfly valve installation groove;

[0030] The top support rod 300 is composed of a horizontal section 1 301, a raised section 302 and a horizontal section 2 303. A slide groove 101 is provided on the fixed support plate 100 and the movable support plate 200 for the top support rod 300 to move along the radial direction of the fixed support plate 100 and the movable support plate 200.

[0031] A cylinder 700 is installed on the fixed support plate 100 to support the movable support plate 200 to move along the fixed rod 500 .

[0032] The clamp device as a whole carries the rubber ring and pushes it into the installation groove station inside the butterfly valve to be installed. Rolling wheels 401 and clamping components 800 are respectively installed on two top support rods 400 and one top support rod 300, forming a three-point support for the rubber ring. The top support rod 300 is divided into three parts: horizontal section 1 301, raised section 302 and horizontal section 2 303, which are used to change the position of the top support rod 1 300 when the movable support plate 200 moves through the horizontal section 1 301, raised section 302 and horizontal section 2 303 respectively. When the movable support plate 200 is located on the raised section 302, the top support rod 1 300 is not at the farthest point in the radial direction of the central axis of the butterfly valve. When the movable support plate 200 is located at the top of the raised section 302, the top support rod 1 300 is farthest from the inside of the butterfly valve, which is used to shrink the rubber ring inward to avoid obstruction when the clamp moves to the installation groove inside the butterfly valve. The clamping assembly 800 can directly clamp the rubber ring to ensure the stability of the rubber ring when it is carried. When the movable support plate 200 moves past the raised section 302, the top support rod 300 is separated from the pressing of the raised section 302 by the movable support plate 200 and is supported toward the inner wall of the butterfly valve through the elastic action of the telescopic rod 601. The rubber ring is pressed into the installation groove in cooperation with the rolling wheel 401. At the same time, the clamp can, under the drive of the main shaft, allow the rolling wheel 401 to roll around the rubber ring after the rubber ring is initially inserted into the groove, so as to further completely insert the rubber ring into the groove and stabilize it. The cylinder 700 arranged between the fixed support plate 100 and the movable support plate 200 is used to push the movable support plate 200 forward, and is used to change the specific position of the movable support plate 200 on the top support rod 300.

[0033] like Figure 4As shown, the clamping assembly 800 includes a clamping member 801, a fixing cylinder 802 and an ejector pin 803. The fixing cylinder 802 and the ejector pin 803 are used to push the clamping member 801 to clamp or release the rubber ring. A spring is provided inside the fixing cylinder 802 to elastically support the ejector pin 803.

[0034] The ejector pin 803 penetrates the second clamping block 8012 and is fixed on the first clamping block 8011 . The closing and loosening between the first clamping block 8011 and the second clamping block 8012 can be controlled by the ejector pin 803 .

[0035] like Figure 4 As shown, the clamping member 801 is divided into two parts, the clamping block 1 8011 and the clamping block 2 8012. The clamping block 2 8012 is fixedly mounted on the horizontal section 2 303, and the clamping block 1 8011 is movably sleeved on the horizontal section 2 303. The ejector pin 803 penetrates the clamping block 2 8012 and is fixedly connected to the clamping block 1 8011. The ejector pin 803 moves along the axial direction of the fixed cylinder 802 to open or tighten the clamping block 1 8011.

[0036] The spring provided in the fixed cylinder 802 pushes the ejector pin 803 in the opposite direction of the butterfly valve.

[0037] The clamp block 8012 is fixedly installed on the horizontal section 303, while the clamp block 8011 is movable, so that the clamp block 8011 can be operated to clamp or release the rubber ring along the movement of the horizontal section 303. The ejector pin 803 is supported in the opposite direction of the butterfly valve by the spring arranged inside the fixed cylinder 802, so that when the ejector pin 803 is not supported by the movable support plate 200, the space between the clamp block 8011 and the clamp block 8012 is tightened and closed to clamp the rubber ring.

[0038] When the rubber ring is initially installed on the fixture, the movable support plate 200 pushes the ejector pin 803 to open the clamping block 1 8011 , and then the movable support plate 200 retreats to allow the clamping block 1 8011 and the clamping block 2 8012 to clamp.

[0039] like Figure 4 As shown, a support block 8013 is also provided on the clamp block 8012 , and the support block 8013 is used to raise the rubber ring or limit the distance between the clamp block 1 8011 and the clamp block 2 8012 .

[0040] The support block 8013 is used to limit the clamping depth of the rubber ring and to limit the position, so as to prevent the rubber ring from being entangled with the clamping device or being misaligned inwards, thereby preventing the rubber ring from being difficult to disengage.

[0041] like Figure 4 As shown, the end position of the ejector pin 803 is located between the raised section 302 and the second horizontal section 303 in the initial state.

[0042] The end of the ejector pin 803 is arranged at this position mainly to be able to directly push the ejector pin 803 after the movable support plate 200 is separated from the section where the protruding section 302 is located, so that the ejector pin 803 presses the clamping block 1 8011 to move forward, thereby allowing the clamping member 801 to release the clamping of the rubber ring.

[0043] like Figure 2 and Figure 3 As shown, the elastic support assembly 600 includes a telescopic rod 1 601 and a telescopic rod 2 602, the telescopic rod 1 601 and the telescopic rod 2 602 are used to support the top support rod 1 300 and the top support rod 2 400 respectively, and the fixed support plate 100 and the movable support plate 200 are also provided with a corresponding slide groove 102, the available travel distance of the slide groove 102 is shorter than that of the slide groove 101, and the top support rod 2 400 is movably arranged in the slide groove 102;

[0044] The extension directions of the first slide groove 101 and the second slide groove 102 both point to the central axis of the fixing rod 500 .

[0045] Telescopic rod 1 601 and telescopic rod 2 602 are both elastic support rods, used to support top support rod 1 300 and top support rod 2 400 outward. Therefore, telescopic rod 2 602 can support the rubber ring on the inner wall of the butterfly valve through the rolling wheel 401 and push it into the installation groove for compression. In this scheme, the setting form of top support rod 2 400 can be the same as that of top support rod 1 300, by setting a similar raised section 302 and making it fixed in the same plane as the raised section 302, so as to shrink the rolling wheel 401 inward. After the movable support plate 200 is separated from the section where the raised section 302 is located, the rubber ring can be supported to enter the installation groove. The formation of the inward contraction of top support rod 2 400 does not need to be too long to prevent the rubber ring from detaching from its surface.

[0046] like Figure 3 and Figure 4 As shown, a circle of receiving grooves is provided on the circumference of the rolling wheel 401, and the edges of the receiving grooves are processed with arc transition.

[0047] The receiving groove here is used to receive the rubber ring, and the rubber ring can go deep into the groove to a certain extent to avoid detachment from the rolling wheel 401. The edge of the receiving groove on the rolling wheel 401 is processed with an arc transition to prevent the rubber ring from being scratched and facilitate the rubber ring to finally detach from the receiving groove.

[0048] like Figure 5 As shown, at least two auxiliary limit rods 900 are installed on the movable support plate 200, and the two auxiliary limit rods 900 are symmetrically arranged. The outer sleeve of the telescopic rod 601 extends downward to the bottom of the fixed rod 500, and the clamping assembly 800 can clamp the rubber ring and move it below the horizontal position of the rolling wheel 401. The rubber ring is sleeved on the rolling wheel 401, the clamping assembly 800 and the auxiliary limit rod 900.

[0049] The above scheme is a more preferred implementation of the clamp. Without setting the second support rod 400 to be similar to the first support rod 300, at least two auxiliary limit rods 900 are added on the movable support plate 200, which are in a corresponding relationship with the rolling wheel 401 to hold the rubber ring as a whole when the clamping assembly 800 clamps the rubber ring and sinks it. As a result, the rubber ring can squeeze the rolling wheel 401 inwards toward the inner center direction to shrink inwards, avoiding the frictional contact between the rolling wheel 401 and the inner wall of the butterfly valve. The height of the clamping assembly 800 sinking downwards can eventually be lower than the height of the rolling wheel 401, thereby bending the rubber ring and squeezing the rolling wheel 401 further inwards. The rolling wheel 401 can slide and shrink along the second slide groove 102. When the clamping assembly 800 is separated from the raised section 302 area on the movable support plate 200 and presses the ejector pin 803 to move forward, the clamping assembly 800 loosens the rubber ring and pushes the rubber ring into the installation groove of the butterfly valve. The rubber ring is separated from the squeezing of the rolling wheel 401 and returns to its original state. The rolling wheel 401 pushes the rubber ring into the installation groove. As the rolling wheel 401 rotates, the rubber ring can be evenly pressed into the installation groove as a whole.

[0050] like Figure 1 As shown, a connecting seat 103 is installed on the back of the fixed support plate 100 for connecting the driving main shaft.

[0051] The driving spindle is used to drive the entire fixture to rotate along the center axis of the butterfly valve, so that the rolling wheel 401 can press the rubber ring to squeeze it into the installation groove for stabilization. The rotation is a reciprocating rotation, and it is only necessary to make the squeezing area of ​​the rolling wheel 401 present a closed loop without overlapping squeezing.

[0052] The working principle and use process of the present invention:

[0053] The rubber ring is placed on the clamping assembly 800 and wound around the circumference of the rolling wheel 401. The movable support plate 200 is retracted by the cylinder 700, and the ejector pin 803 is separated from the support of the clamping block 1 8011, so that the clamping block 1 8011 and the clamping block 2 8012 clamp the rubber ring. The entire fixture is pushed into the butterfly valve to the installation slot position. The cylinder 700 pushes the movable support plate 200 forward to support the ejector pin 803, and the ejector pin 803 pushes the clamping block 1 8011 to release the rubber ring. In this way, the rubber ring is pushed into the installation slot, and the main shaft drives the fixture to rotate, so that the rolling wheel 401 rolls on the rubber ring to make it completely enter the slot.

[0054] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0055] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. Butterfly valve rubber ring installation fixture, characterized by: It comprises a fixed support plate (100) and a movable support plate (200), wherein the fixed support plate (100) and the movable support plate (200) are movably sleeved with a top support rod (300) and a top support rod (400), and a fixed rod (500) is also fixedly installed on the fixed support plate (100), and the movable support plate (200) is movably sleeved with the fixed rod (500), and an elastic support assembly (600) is supported and arranged between the fixed rod (500) and the top support rod (300) and the top support rod (400), and the ends of the top support rod (300) and the top support rod (400) are respectively provided with a clamping assembly (800) and a rolling wheel (401) for supporting a rubber ring from the inside and installing it in a butterfly valve installation groove; The supporting rod 1 (300) is composed of a horizontal section 1 (301), a raised section (302) and a horizontal section 2 (303); a slide groove 1 (101) is provided on the fixed support plate (100) and the movable support plate (200) for the supporting rod 1 (300) to move along the radial direction of the fixed support plate (100) and the movable support plate (200); The fixed support plate (100) is provided with a cylinder (700) for supporting the movable support plate (200) to move along the fixed rod (500); The clamping assembly (800) comprises a clamping member (801), a fixing cylinder (802) and an ejector pin (803); the fixing cylinder (802) and the ejector pin (803) are used to push the clamping member (801) to clamp or release the rubber ring; a spring for elastically supporting the ejector pin (803) is provided inside the fixing cylinder (802); The end position of the ejector pin (803) is located between the raised section (302) and the second horizontal section (303) in the initial state.

2. The butterfly valve rubber ring installation fixture according to claim 1 is characterized in that: The clamping member (801) is divided into two parts, namely, clamping block 1 (8011) and clamping block 2 (8012); the clamping block 2 (8012) is fixedly mounted on the horizontal section 2 (303) and the clamping block 1 (8011) is movably sleeved on the horizontal section 2 (303); the ejector pin (803) penetrates the clamping block 2 (8012) and is fixedly connected to the clamping block 1 (8011); the ejector pin (803) moves along the axial direction of the fixed cylinder (802) to open or tighten the clamping block 1 (8011); The spring provided in the fixed cylinder (802) is arranged to support the ejector pin (803) in the opposite direction of the butterfly valve.

3. The butterfly valve rubber ring installation fixture according to claim 2 is characterized in that: The second clamping block (8012) is also provided with a support block (8013), and the support block (8013) is used to raise the rubber ring or limit the distance between the first clamping block (8011) and the second clamping block (8012).

4. The butterfly valve rubber ring installation fixture according to claim 1 is characterized in that: The elastic support assembly (600) includes a telescopic rod 1 (601) and a telescopic rod 2 (602), wherein the telescopic rod 1 (601) and the telescopic rod 2 (602) are used to support the top support rod 1 (300) and the top support rod 2 (400) respectively, and the fixed support plate (100) and the movable support plate (200) are also provided with a corresponding slide groove 2 (102), and the available travel distance of the slide groove 2 (102) is shorter than that of the slide groove 1 (101), and the top support rod 2 (400) is movably arranged in the slide groove 2 (102); The extension directions of the first slide groove (101) and the second slide groove (102) both point to the central axis of the fixing rod (500).

5. The butterfly valve rubber ring installation fixture according to claim 1 is characterized in that: The circumferential surface of the rolling wheel (401) is provided with a circle of receiving grooves, and the edges of the receiving grooves are subjected to arc transition treatment.

6. The butterfly valve rubber ring installation fixture according to claim 4 is characterized in that: At least two auxiliary limiting rods (900) are installed on the movable support plate (200), and the two auxiliary limiting rods (900) are symmetrically arranged. The outer sleeve of the telescopic rod 1 (601) extends downward to the bottom of the fixed rod (500). The clamping assembly (800) can clamp the rubber ring and move it to below the horizontal position of the rolling wheel (401). The rubber ring is sleeved on the rolling wheel (401), the clamping assembly (800) and the auxiliary limiting rod (900).

7. The butterfly valve rubber ring installation fixture according to claim 1 is characterized in that: A connecting seat (103) is installed on the back of the fixed support plate (100) for connecting to a driving main shaft.

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