Check valve convenient to install

Abstract

The utility model discloses a check valve convenient to install, and relates to the technical field of check valves, the check valve convenient to install comprises a check valve body, the front side and the rear side of the check valve body are respectively and fixedly provided with a guide strip, a sliding block is installed in each guide strip in a sliding mode, a rotating plate is installed on each sliding block in a rotating mode, and a positioning piece is installed on each rotating plate. The check valve body is fixed to a to-be-installed pipeline in advance through the two sets of positioning pieces, so that follow-up butt joint installation is facilitated; a fastener is mounted on the guide strip, a positioning piece is mounted on the rotating plate, and the rotated rotating plate and the moved sliding block are fixed at the same time through the fastener and the positioning piece. According to the check valve convenient to install, through the arrangement of the positioning piece, a to-be-installed pipeline and the check valve body are connected, the lifting work of the check valve body is omitted, and the check valve body can be installed conveniently.

Description

TECHNICAL FIELD

[0001] The utility model relates to check valve technical field, concretely is a check valve convenient to installation. BACKGROUND

[0002] As the key component of preventing medium backflow in various fluid delivery systems, check valve is widely used in water supply and drainage, petroleum chemical industry, power and many other industrial fields. Its installation quality directly affects the safety, stability and operation efficiency of the pipeline system. In actual engineering application, the installation of check valve often faces many challenges.

[0003] The installation of traditional check valve usually requires the operator to first lift the relatively heavy check valve body, manually align the pipeline flange plate for preliminary positioning, and then fix it through bolts and other connecting pieces. This process not only consumes a lot of manpower, but also requires higher physical strength and operation proficiency of the operator. Moreover, during the lifting and alignment process, the installation position of the check valve and the pipeline is prone to deviation due to human operation errors, affecting the sealing effect, and even may cause safety hazards such as leakage.

[0004] Therefore, we propose a check valve convenient to install to solve the problems raised in the above. CONTENT OF THE UTILITY MODEL

[0005] 1. Technical problem to be solved by the utility model:

[0006] The utility model aims to provide a check valve convenient to install to solve the problems in the above background technology.

[0007] 2. Technical scheme:

[0008] To achieve the above purpose, the utility model provides the following technical scheme: a check valve convenient to install, comprising a check valve body, a guide strip is fixed on the front and rear sides of the check valve body, a sliding block is slidably installed in the guide strip, a rotating plate is rotatably installed on the sliding block, a clamp is installed on the rotating plate, and the check valve body is pre-fixed on the pipeline to be installed through two sets of clamps for subsequent butt joint installation.

[0009] A fastener is installed on the guide strip, and a positioning piece is installed on the rotating plate. The rotating plate after rotation and the sliding block after movement are fixed at the same time through the fastener and the positioning piece.

[0010] Further, thread holes and positioning holes are provided on the left and right sides of the guide strip, the fastener comprises a screw rod and a nut, the screw rod is threadedly connected with the nut, and the screw rod is threadedly connected with the thread hole.

[0011] Through the technical scheme, the screw thread can be installed on the guide strip, and then fixed by cooperation between the screw rod and the nut.

[0012] Further, the through holes one are formed through the upper and lower sides of the left and right sides of the sliding block, and the positioning holes one are formed through the front and back sides of the left and right sides of the sliding block.

[0013] Through the technical scheme, the screw rod and the positioning rod can be inserted subsequently.

[0014] Further, the clamping device comprises a threaded rod which is screwed on the rotating plate, a clamping plate which is rotatably installed on one side of the threaded rod close to the sliding block, a limiting rod which is fixed on the side of the clamping plate, and the limiting rod is slidingly arranged on the rotating plate.

[0015] Through the technical scheme, when the threaded rod is rotated, the clamping plate can be driven to approach the side of the pipeline until the pipeline is fixed.

[0016] Further, the positioning member comprises a positioning rod which is slidingly arranged on the rotating plate, a pressure spring which is sleeved on the outside of the positioning rod, and the two ends of the pressure spring are connected to the positioning rod and the rotating plate respectively, and the through holes two are formed through the upper and lower sides of the end of the positioning rod close to the sliding block.

[0017] Through the technical scheme, the positioning rod can be closely attached to the inside of the positioning hole one and the positioning hole two by the elasticity of the pressure spring.

[0018] Further, the positioning rod is inserted into the positioning hole one and the positioning hole two on the same side in sequence, the sliding block after moving and the rotating plate after rotating are positioned, then the screw rod is inserted into the through hole one and the through hole two on the same side in sequence, and finally the sliding block after moving and the rotating plate after rotating are fixed by cooperation between the screw rod and the nut.

[0019] Through the technical scheme, after the positioning rod and the screw rod are installed, the sliding block after moving and the rotating plate after rotating can be fixed.

[0020] 3. Beneficial effects:

[0021] Compared with the prior art, the check valve convenient to install provided by the technical scheme is connected with the pipeline and the check valve body by the positioning member, and the lifting work of the check valve body is omitted, so that the check valve body is installed, and the specific content is as follows:

[0022] When installing the check valve, first, the flange plate on the check valve body is opposite to the flange plate of the pipeline to be installed, then the threaded rod is rotated, since the threaded rod is in threaded connection with the rotating plate, the clamping plate is moved to the pipeline direction by the threaded rod, the pipeline is clamped by the two clamping plates, the check valve body is directly placed in the position suitable for installation with the water pipe, and then the lifting work of the check valve body can be omitted, so that the installation of the check valve body is more convenient.

[0023] When another side needs to be installed, the screw rod is disassembled first, then the positioning rod is pulled out from the sliding block, then the sliding block is moved to the other side of the check valve body, the rotating plate is rotated to the other side, after being rotated to the appropriate position, under the action of the pressure spring, the positioning rod is sequentially inserted into the positioning hole one and the positioning hole two on the same side, the moved sliding block and the rotated rotating plate are positioned, then the screw rod is inserted through the through hole one and the through hole two, and then the threaded connection between the screw rod and the nut is utilized to fix the moved sliding block and the rotated rotating plate, so that the check valve body is connected with another pipeline to be installed by the positioning member, and the installation positioning accuracy is improved. BRIEF DESCRIPTION OF DRAWINGS

[0024] Fig. 1 It is a whole structure schematic view of the utility model;

[0025] Fig. 2 It is a check valve body structure schematic view of the utility model;

[0026] Fig. 3 It is a rotating plate structure schematic view of the utility model;

[0027] Fig. 4 It is a sliding block structure schematic view of the utility model;

[0028] Fig. 5 It is a positioning member structure schematic view of the utility model;

[0029] Fig. 6 It is a sliding block internal structure schematic view of the utility model.

[0030] In the drawing: 1, check valve body; 2, guide bar; 21, threaded hole; 22, positioning hole two; 3, sliding block; 31, positioning hole one; 32, through hole one; 4, rotating plate; 5, clamp; 51, threaded rod; 52, clamping plate; 53, limiting rod; 6, fastener; 61, screw rod; 62, nut; 7, positioning member; 71, positioning rod; 72, pressure spring; 73, through hole two. DETAILED DESCRIPTION

[0031] In order to facilitate the understanding of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0032] In the description of the present application, it should be understood that the orientations or positional relationships indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "page", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0033] In addition, the terms "first" and "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "multiple" is two or more, unless otherwise specifically limited.

[0034] In the present application, unless otherwise specifically defined and limited, the terms "mounting", "connection", "connection", "fixing", "provided with" and the like should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication between two elements inside. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances. Embodiment

[0035] Please refer to Figs. 1-6 A check valve convenient to install, including check valve body 1, the front and rear sides of check valve body 1 are both fixed with a guide strip 2, the inside of guide strip 2 is slidably installed with a sliding block 3, the sliding block 3 is rotatably installed with a rotating plate 4, the rotating plate 4 is installed with a holder 5, the check valve body 1 is pre-fixed on the pipeline to be installed through two groups of holders 5, so as to facilitate subsequent butt joint installation, the holder 5 includes a threaded rod 51 screwing on the rotating plate 4, the side of threaded rod 51 close to the sliding block 3 is rotatably installed with a clamping plate 52, and the side of clamping plate 52 is fixed with a limiting rod 53, and the limiting rod 53 is slidably arranged on the rotating plate 4.

[0036] When the check valve is installed, the flange plate on the check valve body 1 is opposite to the flange plate of the pipeline to be installed, and then the threaded rod 51 is rotated, and since the threaded rod 51 is threadedly connected with the rotating plate 4, the clamping plate 52 is moved to the pipeline direction by the threaded rod 51, the pipeline is clamped by the two clamping plates 52, the check valve body 1 is directly placed in a position suitable for installation with the water pipe, and the lifting work of the check valve body 1 can be omitted, so that the installation of the check valve body 1 is more convenient.

[0037] The guiding strip 2 is provided with a fastener 6, and the rotating plate 4 is provided with a positioning piece 7, and the rotating plate 4 after rotation and the sliding block 3 after movement are fixed by the fastener 6 and the positioning piece 7 at the same time; the left and right sides of the guiding strip 2 are provided with threaded holes 21 and positioning holes two 22, the fastener 6 includes a screw rod 61 and a nut 62, the screw rod 61 is threadedly connected with the nut 62, and the screw rod 61 is threadedly connected with the threaded hole 21; the left and right sides of the sliding block 3 are provided with through holes one 32, and the left and right sides of the sliding block 3 are provided with positioning holes one 31; the positioning piece 7 includes a positioning rod 71 which is slidably arranged on the rotating plate 4, a pressure spring 72 is arranged on the outside of the positioning rod 71, the two ends of the pressure spring 72 are connected with the positioning rod 71 and the rotating plate 4 respectively, and the end of the positioning rod 71 close to the sliding block 3 is provided with a through hole two 73; the positioning rod 71 is inserted into the positioning hole one 31 and the positioning hole two 22 on the same side in sequence, the sliding block 3 after movement and the rotating plate 4 after rotation are positioned, then the screw rod 61 is inserted into the through hole one 32 and the through hole two 73 on the same side in sequence, and finally the sliding block 3 after movement and the rotating plate 4 after rotation are fixed by the cooperation of the screw rod 61 and the nut 62.

[0038] When another side needs to be installed, the screw rod 61 is first disassembled, then the positioning rod 71 is pulled out of the sliding block 3, then the sliding block 3 is moved to the other side of the check valve body 1, then the rotating plate 4 is rotated to the other side, and after being rotated to the appropriate position, the positioning rod 71 is inserted into the positioning hole one 31 and the positioning hole two 22 on the same side in sequence under the action of the pressure spring 72, the sliding block 3 after movement and the rotating plate 4 after rotation are positioned, then the screw rod 61 is inserted through the through hole one 32 and the through hole two 73, and then the sliding block 3 after movement and the rotating plate 4 after rotation are fixed by the threaded connection between the screw rod 61 and the nut 62, so as to connect the check valve body 1 with another pipeline to be installed by the positioning piece 7, and improve the accuracy of installation and positioning.

[0039] Working principle: when the check valve is used, if the check valve body 1 needs to be installed on the left side of the pipeline, the sliding block 3 is first moved to the left side of the check valve body 1, then the rotating plate 4 is rotated to the left side, and then the sliding block 3 after movement and the rotating plate 4 after rotation are positioned by the positioning piece 7, and then the sliding block 3 after movement and the rotating plate 4 after rotation are fixed by the cooperation of the screw rod 61 and the nut 62. Figs. 1-6As shown, when the check valve is installed, the flange plate on the check valve body 1 is opposite to the flange plate of the pipeline to be installed, then the threaded rod 51 is rotated to drive the two clamping plates 52 to clamp the pipeline, and then the check valve body 1 can be directly placed in a position suitable for installation with the water pipe, and the lifting work of the check valve body 1 can be omitted, so that the installation of the check valve body 1 is more convenient, and then when the other side is installed, the screw rod 61 is disassembled, then the positioning rod 71 is pulled out, then the sliding block 3 is moved to the other side of the check valve body 1, then the rotating plate 4 is rotated to the other side, then the positioning rod 71 and the screw rod 61 are installed in sequence, and the moved sliding block 3 and the rotated rotating plate 4 are fixed, so as to connect the check valve body 1 with another pipeline to be installed by the positioning piece 7, and the installation positioning accuracy is improved.

[0040] The contents not described in detail in the specification belong to the prior art known to those skilled in the art.

[0041] Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments or make equivalent replacement to part of the technical features, and any modification, equivalent replacement, improvement, etc. within the spirit and principles of the utility model shall be included in the protection scope of the utility model.

Claims

1. A check valve that is easy to install, characterized by: Including check valve body (1), the front and back of check valve body (1) are fixed with a guide strip (2), the inside of guide strip (2) is slidably installed with sliding block (3), the sliding block (3) is rotatably installed with rotating plate (4), the rotating plate (4) is installed with holder (5), the check valve body (1) is fixed on the pipeline to be installed in advance by two groups of holders (5), so as to be subsequently connected and installed; The rotating plate (4) and the sliding block (3) after moving are fixed by fastener (6) and positioning member (7) at the same time.

2. The easy-to-install check valve of claim 1, wherein: The left and right sides of guide strip (2) are provided with threaded hole (21) and positioning hole two (22), the fastener (6) includes screw rod (61) and nut (62), the screw rod (61) is in threaded connection with nut (62), and the screw rod (61) is in threaded connection with threaded hole (21).

3. The easy-to-install check valve of claim 1, wherein: The left and right sides of sliding block (3) are provided with through hole one (32) penetrating from top to bottom, and the left and right sides of sliding block (3) are provided with positioning hole one (31) penetrating from front to back.

4. The easy-to-install check valve of claim 1, wherein: The holder (5) includes threaded rod (51) threaded on the rotating plate (4), the side, close to the sliding block (3), of threaded rod (51) is rotatably installed with clamping plate (52), the side of clamping plate (52) is fixed with limiting rod (53), and the limiting rod (53) is slidably arranged on the rotating plate (4).

5. The easy-to-install check valve of claim 1, wherein: The positioning member (7) includes positioning rod (71) slidably arranged on the rotating plate (4), the outer side of positioning rod (71) is sleeved with pressure spring (72), the two ends of pressure spring (72) are connected with positioning rod (71) and rotating plate (4) respectively, and the end, close to the sliding block (3), of positioning rod (71) is provided with through hole two (73) penetrating from top to bottom.

6. A valve according to claim 5 wherein: The positioning rod (71) is inserted into positioning hole one (31) and positioning hole two (22) on the same side in sequence, the sliding block (3) after moving and the rotating plate (4) after rotating are positioned, then the screw rod (61) is inserted into through hole one (32) and through hole two (73) on the same side in sequence, finally the sliding block (3) after moving and the rotating plate (4) after rotating are fixed by the cooperation of screw rod (61) and nut (62).

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