Adjustable valve cover mounting jig

Abstract

The utility model discloses an adjustable valve cover mounting jig, which relates to the technical field of valve cover production and comprises a base and a top seat which are arranged up and down, mounting cylinders are fixedly connected to the end corners of the outer ends of the base and the top seat, guide rods are fixedly connected to the interiors of the mounting cylinders, and operation openings are formed in the two sides of the surface of the top seat. A hydraulic mechanism is fixedly connected to the center of the top of the top seat, a pressing structure is fixedly connected to the bottom end of the hydraulic mechanism, and a limiting groove is fixedly formed in the surface of the base. The effect of guaranteeing the lifting stability of the whole pressing structure is achieved through cooperation of the connecting arms and the guide cylinders and the guide rods, meanwhile, the connecting arms are distributed in the X shape, enough operation space can be provided for follow-up installation operation of the valve deck and the valve body, influences on follow-up installation operation are avoided, and the service life of the valve deck and the valve body is prolonged. And the effect of pressing and fixing the outer valve cover and the valve body from the upper side is achieved through the pressing frame and the pressing block at the bottom end of the pressing frame.

Description

Technical Field

[0001] The utility model relates to the field of valve cover production, in particular to an adjustable valve cover installation jig. Background Art

[0002] Valves are control components in fluid delivery systems, with functions such as shutoff, regulation, flow diversion, backflow prevention, pressure stabilization, flow diversion or overflow pressure relief. Valves used in fluid control systems come in a wide variety of varieties and specifications, from the simplest shutoff valves to the various valves used in extremely complex automatic control systems. According to their functions, they can be divided into shut-off valves, check valves, regulating valves, etc.

[0003] In some valves, since the valve stem or supporting connection structure needs to be installed, the valve cover needs to be installed to compress the packing. In order to consider the rebound effect, the spring is indispensable in the packing. Therefore, when installing the valve cover, the valve cover needs to be pressed and then tightened with screws before the valve cover can be released. Otherwise, the valve cover will be bounced open by the spring. At present, when installing the valve cover with a spring, it is generally installed by a corresponding installation jig. When the existing valve cover installation jig is used, the valve body is mainly clamped and fixed by the clamping structure in the bottom limit base, and then the valve cover and the valve body are pressed down and fitted with the lifting and lowering pressure plate to complete the installation. The problems are:

[0004] Firstly, corresponding to valve covers of different specifications, the lifting and lowering pressure plates are mostly fixedly connected, and cannot be replaced and used according to the corresponding sizes of the valve covers, and the scope of application needs to be improved. Secondly, the existing lifting and lowering pressure plates are mostly circular or rectangular pressure plates. After the valve cover and the valve body are pressed down and fixed, it is not conducive to the user to operate and install the installation holes.

[0005] Therefore, the utility model provides an adjustable valve cover installation fixture. Utility Model Content

[0006] In view of the deficiencies in the prior art, the utility model provides an adjustable valve cover installation fixture, which solves the problems raised by the above-mentioned background technology.

[0007] To achieve the above objectives, the utility model is implemented through the following technical solutions: an adjustable valve cover mounting fixture, comprising a base and a top seat arranged in upper and lower positions, the outer end corners of the base and the top seat are fixedly connected with mounting tubes, the mounting tubes are fixedly connected with guide rods, operation openings are provided on both sides of the surface of the top seat, a hydraulic mechanism is fixedly connected to the center position of the top of the top seat, a downward pressure structure is fixedly connected to the bottom end of the hydraulic mechanism, a limiting groove is fixedly provided on the surface of the base, extension platforms are fixedly connected on both sides of the top of the base, and limiting rods are arranged through the surface of the extension platform.

[0008] As a further technical solution of the utility model, the operation opening is semicircularly arranged on both sides of the top of the top seat, and the limiting groove is arranged as a rectangular groove body.

[0009] As a further technical solution of the utility model, two groups of limiting rods are arranged on both sides of the limiting groove, and the limiting rods are arranged as threaded rods and are threadedly connected with the extension table. A group of rubber heads are additionally connected to the inner ends of the limiting rods.

[0010] As a further technical solution of the utility model, the pressing-down structure includes a connecting rod, a mounting sleeve and a mounting ring which are fixedly connected in sequence from top to bottom. The pressing-down structure further includes a pressing-down frame, a connecting arm and a guiding cylinder. The pressing-down frame is integrally in an "X" shape and is fixedly connected to the bottom end of the mounting ring, and the pressing-down frame is integrally horizontally arranged. A trapezoidal plastic pressing block is additionally arranged at the bottom end of the pressing-down frame. Four groups of connecting arms are arranged and are distributed in an "X" shape along the outer side of the mounting sleeve. The guiding cylinder is fixedly connected to the outer end of the connecting arm, and the guiding cylinder is simultaneously slidably sleeved with a guiding rod.

[0011] As a further technical solution of the utility model, the connecting rod is simultaneously fixedly connected to the bottom end of the hydraulic mechanism.

[0012] The utility model provides an adjustable valve cover installation jig, which has the following

[0013] beneficial effects compared with the prior art:

[0014] 1. For the adjustable valve cover installation jig of this design, through the operation opening, it is convenient for the user to vertically install and fix the valve cover and valve body in the limited state from the upper position. Through the cooperation of the limiting groove and the limiting rod, the external valve body can be placed and clamped and limited from both sides.

[0015] 2. For the adjustable valve cover installation jig of this design, through the cooperation of the connecting arm, the guiding cylinder and the guiding rod, the lifting stability of the whole pressing-down structure is ensured. At the same time, the connecting arms are distributed in an "X" shape, which can provide enough operation space for the subsequent installation operation of the valve cover and valve body, avoiding affecting the subsequent installation operation. Through the pressing-down frame and the pressing block at its bottom end, the external valve cover and valve body can be pressed and fixed from above, and the pressing-down frame in an "X" shape can avoid covering the mounting hole positions on the surface of the valve cover, ensuring the convenience of subsequent installation. Through the mounting ring, it is convenient to quickly disassemble and assemble the pressing-down frame and the mounting sleeve. Description of the drawings

[0016] Figure 1 It is a structural schematic diagram of an adjustable valve cover installation jig;

[0017] Figure 2 It is a connection schematic diagram of the pressing-down structure of an adjustable valve cover installation jig;

[0018] Figure 3 For a structure enlarged view of part A in an adjustable valve cover installation jig Figure 1 In the figure.

[0019] In the figure: 1. Base; 2. Installation cylinder; 3. Guide rod; 4. Top seat; 5. Operation opening; 6. Hydraulic mechanism; 7. Pressing-down structure; 8. Limit groove; 9. Connecting rod; 10. Installation sleeve; 11. Connecting arm; 12. Guide cylinder; 13. Installation ring; 14. Pressing-down frame; 15. Extension table; 16. Limit rod. Specific embodiments

[0020] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0021] Please refer to Figures 1-3 , the present invention provides a technical solution for an adjustable valve cover installation jig: including a base 1 and a top seat 4 arranged up and down. Installation cylinders 2 are fixedly connected to the outer end corners of both the base 1 and the top seat 4. Guide rods 3 are fixedly connected in the installation cylinders 2. Operation openings 5 are formed on both sides of the surface of the top seat 4. A hydraulic mechanism 6 is fixedly connected to the center position of the top of the top seat 4. The bottom end of the hydraulic mechanism 6 is fixedly connected to a pressing-down structure 7. A limit groove 8 is fixedly formed on the surface of the base 1. Extension tables 15 are fixedly connected to both sides of the top of the base 1. Limit rods 16 penetrate through the surfaces of the extension tables 15.

[0022] As Figure 1 shown, the operation openings 5 are formed in a semicircular shape and are located on both sides of the top of the top seat 4. The limit groove 8 is formed as a rectangular groove. There are two groups of limit rods 16, which are located on both sides of the limit groove 8, and the limit rods 16 are set as threaded rods and are threadedly connected to the extension tables 15. A rubber head is further connected to the inner end of the limit rod 16. Through the operation openings 5, it is convenient for the user to vertically install and fix the valve cover and the valve body in the limited state from the upper position. Through the cooperation of the limit groove 8 and the limit rods 16, the external valve body can be placed and clamped and limited from both sides.

[0023] Place the valve body in the limit groove 8. The user rotates the limit rod 16 so that the limit rod 16 moves inward on both sides of the limit groove 8 for adjustment. The rubber head at the inner end of the limit rod 16 contacts the outer side of the valve body to limit it. When pressing down the valve cover and the valve body to contact and install and fix them, the user can cooperate with an external installation tool to complete the installation and fixation of the valve cover and the valve body from top to bottom at the operation opening 5 position.

[0024] As Figure 2 shown, the pressing-down structure 7 includes a connecting rod 9, an installation sleeve 10, and an installation ring 13 that are fixedly connected in sequence from top to bottom. It also includes a pressing-down frame 14, a connecting arm 11, and a guiding cylinder 12. The pressing-down frame 14 is integrally in an "X" shape and is fixedly connected to the bottom end of the installation ring 13, and the pressing-down frame 14 is integrally horizontally arranged. A trapezoidal plastic pressing block is additionally provided at the bottom end of the pressing-down frame 14. Four groups of connecting arms 11 are provided and are distributed in an "X" shape along the outer side of the installation sleeve 10. The guiding cylinder 12 is fixedly connected to the outer end position of the connecting arm 11. The guiding cylinder 12 is also slidably sleeved with the guiding rod 3. The connecting rod 9 is also fixedly connected to the bottom end of the hydraulic mechanism 6. By the cooperation of the connecting arm 11 and the guiding cylinder 12 with the guiding rod 3, the effect of ensuring the lifting stability of the entire pressing-down structure 7 is achieved. At the same time, the connecting arms 11 are distributed in an "X" shape, which can provide sufficient operating space for the subsequent installation operation of the valve cover and the valve body, avoiding affecting the subsequent installation operation. By the pressing-down frame 14 and the pressing block at its bottom end, the effect of pressing down and fixing the external valve cover and the valve body from above is achieved, and the pressing-down frame 14 arranged in an "X" shape can avoid blocking the installation hole positions on the surface of the valve cover, ensuring the subsequent installation convenience. Through the installation ring 13, it is convenient to quickly disassemble and assemble the pressing-down frame 14 and the installation sleeve 10.

[0025] When facing valve covers of different size specifications, the user can correspondingly replace the pressing-down frame 14 of different sizes. During the descending process of the pressing-down structure 7, the guiding cylinder 12 slides stably along the guiding rod 3, and together with the connecting arm 11, it ensures the lifting stability of the entire pressing-down structure 7 until the pressing-down frame 14 descends to contact the upper part of the valve cover and forms a pressing-down fixation on it and the valve body.

[0026] The working principle of the present utility model is as follows: The user first places the external valve body in the limit groove 8 and clamps and limits the valve body through the limit rods 16 at both sides. Then, the user places the external valve cover on the top of the valve body at the position to be installed. Next, the hydraulic mechanism 6 is started to drive the entire pressing-down structure 7 to descend along the guiding rod 3 until the pressing-down frame 14 contacts the valve cover and forms a pressing-down fixation on it and the valve body. After the holes are aligned, the user can install and fix the valve body and the valve cover from the outside of the device or at the operation opening 5 position.

[0027] The above are only the preferred embodiments of the present utility model. It should be noted that for those of ordinary skill in the art in this technical field, without departing from the principle of the present utility model, several improvements and refinements can be made, and these improvements and refinements should also be regarded as the protection scope of the present utility model. The structures, devices, and operation methods not specifically described and explained in the present utility model are implemented according to the conventional means in this field without special description and limitation.

Claims

1. An adjustable valve cover installation fixture, characterized in that: The invention comprises a base (1) and a top seat (4) arranged in upper and lower positions, wherein the outer end corners of the base (1) and the top seat (4) are fixedly connected to a mounting tube (2), the mounting tube (2) is fixedly connected to a guide rod (3), the surface of the top seat (4) is provided with operation openings (5) on both sides, and a hydraulic mechanism (6) is fixedly connected to the top center of the top seat (4), the bottom end of the hydraulic mechanism (6) is fixedly connected to a downward pressing structure (7), the surface of the base (1) is fixedly provided with a limiting groove (8), the top of the base (1) is fixedly connected to an expansion platform (15) on both sides, and a limiting rod (16) is provided through the surface of the expansion platform (15).

2. The adjustable valve cover installation fixture according to claim 1, characterized in that: The operation opening (5) is opened in a semicircular shape and is located on both sides of the top of the top seat (4); the limiting groove (8) is opened in a rectangular groove body.

3. The adjustable valve cover installation fixture according to claim 1, characterized in that: Two groups of limiting rods (16) are provided, which are located at both sides of the limiting groove (8), and the limiting rods (16) are arranged as threaded rods, which are threadedly connected to the expansion platform (15), and the inner ends of the limiting rods (16) are further connected with a group of rubber heads.

4. The adjustable valve cover installation fixture according to claim 1, characterized in that: The pressing structure (7) comprises a connecting rod (9), a mounting sleeve (10) and a mounting ring (13) which are fixedly connected in sequence from top to bottom. The pressing structure (7) further comprises a pressing frame (14), a connecting arm (11) and a guide cylinder (12); the pressing frame (14) is in an "X" shape as a whole and is fixedly connected to the bottom end of the mounting ring (13); the pressing frame (14) is arranged horizontally as a whole; a trapezoidal plastic pressing block is also arranged at the bottom end of the pressing frame (14); four groups of connecting arms (11) are arranged and distributed in an "X" shape along the outer side of the mounting sleeve (10); the guide cylinder (12) is fixedly connected to the outer end of the connecting arm (11), and the guide cylinder (12) is slidably sleeved with the guide rod (3) at the same time.

5. The adjustable valve cover installation fixture according to claim 4, characterized in that: The connecting rod (9) is also fixedly connected to the bottom end of the hydraulic mechanism (6).

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