Valve seat extractor

Abstract

The utility model relates to the technical field of valve seat taking-out devices, and discloses a valve seat taking-out device which comprises a lead screw pull rod, an installation steel cylinder is arranged on the wall face of the bottom of the lead screw pull rod, two sets of movable check blocks capable of limiting are arranged in the installation steel cylinder, and the two sets of movable check blocks movably penetrate through the outer wall of the installation steel cylinder in a far-away mode. Elastic elements capable of resetting are fixedly installed on the wall faces, close to each other, of the two sets of movable check blocks, the elastic elements are arranged in a compressed state, the installation steel cylinder and the lead screw pull rod are connected together in a detachable mode, and a movable baffle capable of moving up and down is movably installed in the installation steel cylinder. The height of the movable baffle is reduced through the position adjusting mechanism, the inclined face of the movable baffle can move downwards along the inclined faces of the two sets of fixed check blocks, the movable baffle can extrude the two sets of fixed check blocks to be close to each other, and therefore the distance between the two sets of movable check blocks is reduced, and a valve seat with the small inner diameter can be operated.

Description

Technical Field

[0001] The utility model relates to the technical field of valve seat extractors, in particular to a valve seat extractor. Background Art

[0002] After retrieval, the publication (announcement) number: CN219987502U discloses a valve seat extractor, which includes a screw rod pull rod, a claw, an elastic member and a driving device; at least two installation grooves are provided on the outer side wall of the screw rod pull rod, and through holes are provided at the bottom of the installation grooves; a through hole communicating with the through holes is provided inside the screw rod pull rod, a cable is provided in the through hole, and the movable end of the cable passes through the lifting end of the screw rod pull rod; one end of the claw away from the lifting end of the screw rod pull rod is hinged in the installation groove, and the fixed end of the cable is connected with the claw; the elastic member is arranged between the installation groove and the claw; the driving device is arranged on the screw rod pull rod.

[0003] During the use of the above-mentioned well-known technology, the claw is used to limit the valve seat to be disassembled, and the distance between multiple claws is fixed. However, in actual situations, the inner diameters of valve seats are of different sizes and models. Such a situation where the distances between multiple claws are fixed will limit the applicable range of the entire device.

[0004] Therefore, we propose a valve seat extractor. Content of the Utility Model

[0005] The utility model mainly solves the technical problems existing in the above-mentioned prior art, and provides a valve seat extractor.

[0006] In order to achieve the above purpose, the utility model adopts the following technical scheme. A valve seat extractor includes a screw rod pull rod. An installation steel cylinder is provided on the bottom wall surface of the screw rod pull rod. Two groups of movable stoppers for limiting are provided inside the installation steel cylinder. The outer walls of the installation steel cylinder are movably penetrated by both sides of the two groups of movable stoppers away from each other. The bottom wall surfaces of the two groups of movable stoppers are inclined surfaces. Elastic elements for resetting are fixedly installed on the wall surfaces of the two groups of movable stoppers close to each other. The elastic elements are arranged in a compressed state. The installation steel cylinder and the screw rod pull rod are connected together in a detachable manner. A movable baffle for moving up and down is movably installed inside the installation steel cylinder. The movable baffle is concave. Fixed stoppers are fixedly installed on the wall surfaces of the two groups of movable stoppers. The wall surfaces of the two groups of fixed stoppers away from each other are inclined surfaces. The front and rear wall surfaces of the groove of the movable baffle are inclined surfaces. The two inclined surfaces of the movable baffle are in contact with the inclined surfaces of the fixed stoppers on the same side. A position adjusting mechanism for changing its height is provided on the movable baffle. The position adjusting mechanism includes a height adjusting rod.

[0007] Preferably, a positioning connection groove is provided on the upper side wall surface of the screw rod pull rod. The positioning connection groove penetrates the upper and lower wall surfaces of the screw rod pull rod. The height adjusting rod is arranged inside the positioning connection groove.

[0008] Preferably, the outer wall of the height adjustment rod movably penetrates through the top wall surface of the mounting cylinder, and threaded grooves are provided on the inner wall of the positioning connection groove and the outer wall of the height adjustment rod.

[0009] Preferably, the threaded groove of the positioning connection groove and the threaded groove of the height adjustment rod are mutually adapted, the outer wall of the height adjustment rod and the inner wall of the positioning connection groove are threadedly connected together, and an auxiliary knob for facilitating its rotation is fixedly installed on the upper side section of the height adjustment rod.

[0010] Preferably, the lower end surface of the height adjustment rod is rotatably installed on the upper side wall surface of the movable baffle, and a guiding connecting rod for limiting is fixedly installed inside the mounting cylinder, and the guiding connecting rod is arranged in a vertical state.

[0011] Preferably, the outer wall of the guiding connecting rod movably penetrates through the upper and lower wall surfaces of the movable baffle, and a connecting sliding rod for limiting is fixedly installed inside the mounting cylinder, and the connecting sliding rod is arranged in a horizontal state.

[0012] Preferably, fixed connecting plates are fixedly installed on the lower side wall surfaces of the two groups of movable blocks, the outer wall of the connecting sliding rod movably penetrates through the front and rear wall surfaces of the two groups of fixed connecting plates, and the outer wall of the connecting sliding rod movably passes through the inside of the elastic element.

[0013] Beneficial effects

[0014] The utility model provides a valve seat extractor. It has the following beneficial effects:

[0015] 1. For this valve seat extractor, during the use of the utility model, through the position adjustment mechanism, the height of the movable baffle is reduced. The inclined surface of the movable baffle will move downward along the inclined surfaces of the two groups of fixed blocks, and the movable baffle will squeeze the two groups of fixed blocks to approach each other, thereby reducing the distance between the two groups of movable blocks, and it can operate on a valve seat with a smaller inner diameter. In addition, the movable baffle can move upward, the elastic element starts to elongate, and the two groups of movable blocks move away from each other, increasing the distance between the two groups of movable blocks, and it can operate on a valve seat with a larger inner diameter. The operating range of the device can be changed according to the movable baffle, improving the practicability. In addition, the lead screw rod and the mounting cylinder can be disassembled and then mounting cylinders with other outer diameters can be installed, improving the operating range of the device.

[0016] 2. For this valve seat extractor, during the use of the utility model, by rotating the height adjustment rod, according to different rotation directions, the height adjustment rod will move upward or downward along the inside of the positioning connection groove. At the same time, under the limiting action of the guiding connecting rod, the height of the movable baffle is changed, and the operation is simple and convenient. In addition, during the movement of the two groups of movable blocks, the two groups of fixed connecting plates will move along the outer wall of the connecting sliding rod, which can improve the movement stability of the two groups of movable blocks. Brief Description of the Drawings

[0017] Figure 1 is a three-dimensional view of the whole of the present utility model;

[0018] Figure 2 is a three-dimensional view of the height adjustment rod of the present utility model;

[0019] Figure 3 is Figure 2 an enlarged view of location A;

[0020] Figure 4 is Figure 1 an enlarged view of location B.

[0021] Legend: 1. Lead screw tie rod; 2. Installation steel cylinder; 3. Movable stop block; 4. Elastic element; 5. Fixed stop block; 6. Movable baffle; 7. Positioning connection groove; 8. Height adjustment rod; 9. Auxiliary knob; 10. Guide connecting rod; 11. Fixed connecting plate; 12. Connecting sliding rod. Detailed Description of the Preferred Embodiment

[0022] Embodiment 1: A valve seat extractor, as shown in Figure 1 , Figure 2 and Figure 3 , includes a lead screw tie rod 1. The bottom wall surface of the lead screw tie rod 1 is provided with an installation steel cylinder 2. The interior of the installation steel cylinder 2 is provided with two groups of movable stop blocks 3 that can be limited. The two groups of movable stop blocks 3 both movably penetrate the outer wall of the installation steel cylinder 2 away from each other. The bottom wall surfaces of the two groups of movable stop blocks 3 are both inclined surfaces. The wall surfaces of the two groups of movable stop blocks 3 close to each other are fixedly installed with elastic elements 4 that can be reset. The elastic elements 4 are arranged in a compressed state. The installation steel cylinder 2 and the lead screw tie rod 1 are connected together in a detachable manner. The interior of the installation steel cylinder 2 is movably installed with a movable baffle 6 that can move up and down. The movable baffle 6 is concave. The wall surfaces of the two groups of movable stop blocks 3 are both fixedly installed with fixed stop blocks 5. The wall surfaces of the two groups of fixed stop blocks 5 away from each other are both inclined surfaces. The front and rear wall surfaces of the groove of the movable baffle 6 are both inclined surfaces. The two inclined surfaces of the movable baffle 6 are in contact with the inclined surfaces of the fixed stop blocks 5 on the same side. The movable baffle 6 is provided with a position adjustment mechanism for changing its height. The position adjustment mechanism includes a height adjustment rod 8.

[0023] During the use of the utility model, through the position adjusting mechanism, the height of the movable baffle 6 is reduced. The inclined surface of the movable baffle 6 will move downward along the inclined surfaces of the two groups of fixed stoppers 5, and the movable baffle 6 will squeeze the two groups of fixed stoppers 5 to move closer to each other, thereby reducing the distance between the two groups of movable stoppers 3, and the valve seat with a smaller inner diameter can be operated. In addition, the movable baffle 6 can be moved upward, and the elastic element 4 starts to elongate, causing the two groups of movable stoppers 3 to move away from each other, increasing the distance between the two groups of movable stoppers 3, and the valve seat with a larger inner diameter can be operated. The operating range of the device can be changed according to the movable baffle 6, improving the practicability. In addition, the lead screw rod 1 and the mounting steel cylinder 2 can be disassembled and then other mounting steel cylinders 2 with different outer diameters can be installed.

[0024] Embodiment 2: On the basis of Embodiment 1, as Figure 2 , Figure 3 and Figure 4 shown, a positioning connection groove 7 is formed on the upper side wall surface of the lead screw rod 1, and the positioning connection groove 7 penetrates through the upper and lower wall surfaces of the lead screw rod 1, and the height adjusting rod 8 is arranged inside the positioning connection groove 7.

[0025] The outer wall of the height adjusting rod 8 movably penetrates through the top wall surface of the mounting steel cylinder 2, and threaded grooves are formed on the inner wall of the positioning connection groove 7 and the outer wall of the height adjusting rod 8.

[0026] The threaded groove of the positioning connection groove 7 and the threaded groove of the height adjusting rod 8 are mutually adapted, the outer wall of the height adjusting rod 8 and the inner wall of the positioning connection groove 7 are threadedly connected together, and an auxiliary knob 9 for facilitating its rotation is fixedly installed on the upper side section of the height adjusting rod 8.

[0027] The lower end face of the height adjusting rod 8 is rotatably installed on the upper side wall surface of the movable baffle 6, and a guiding connecting rod 10 for limiting is fixedly installed inside the mounting steel cylinder 2, and the guiding connecting rod 10 is arranged in a vertical state.

[0028] The outer wall of the guiding connecting rod 10 movably penetrates through the upper and lower wall surfaces of the movable baffle 6, and a connecting sliding rod 12 for limiting is fixedly installed inside the mounting steel cylinder 2, and the connecting sliding rod 12 is arranged in a horizontal state.

[0029] Fixed connecting plates 11 are fixedly installed on the lower side wall surfaces of the two groups of movable stoppers 3, the outer wall of the connecting sliding rod 12 movably penetrates through the front and rear wall surfaces of the two groups of fixed connecting plates 11, and the outer wall of the connecting sliding rod 12 movably passes through the inside of the elastic element 4.

[0030] During the use of the utility model, by rotating the height adjustment rod 8, according to different rotation directions, the height adjustment rod 8 will move upward or downward along the inside of the positioning connection groove 7. At the same time, under the limiting action of the guiding connecting rod 10, the height of the movable baffle 6 is changed, and the operation is simple and convenient. In addition, during the movement of the two groups of movable blocks 3, the two groups of fixed connecting plates 11 will move along the outer wall of the connecting slide rod 12.

[0031] The above shows and describes the basic principles, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principles of the utility model. Without departing from the spirit and scope of the utility model, the utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the utility model claimed. The scope of protection claimed by the utility model is defined by the appended claims and their equivalents.

Claims

1. A valve seat extractor, comprising a lead screw rod (1), the bottom wall of the lead screw rod (1) is provided with a mounting steel cylinder (2), the interior of the mounting steel cylinder (2) is provided with two groups of movable stoppers (3) for limiting, the two groups of movable stoppers (3) are separated from each other and move through the outer wall of the mounting steel cylinder (2), the bottom walls of the two groups of movable stoppers (3) are inclined surfaces, characterized in that: The walls of the two groups of movable stops (3) that are close to each other are fixedly installed with elastic elements (4) that can be reset. The elastic elements (4) are set in a compressed state. The mounting steel cylinder (2) and the lead screw rod (1) are connected together in a detachable manner. The interior of the mounting steel cylinder (2) is movably installed with a movable baffle (6) that can move up and down. The movable baffle (6) is concave. The walls of the two groups of movable stops (3) are fixedly installed with fixed stops (5). The walls of the two groups of fixed stops (5) that are far away from each other are inclined surfaces. The front and rear wall surfaces of the grooves of the movable baffle (6) are inclined surfaces. The two groups of inclined surfaces of the movable baffle (6) are in contact with the inclined surfaces of the fixed stops (5) on the same side. The movable baffle (6) is provided with a position adjustment mechanism for changing its height. The position adjustment mechanism includes a height adjustment rod (8).

2. The valve seat extractor according to claim 1, characterized in that: The upper wall surface of the lead screw rod (1) is provided with a positioning connection groove (7), the positioning connection groove (7) penetrates the upper and lower walls of the lead screw rod (1), and the height adjustment rod (8) is arranged inside the positioning connection groove (7).

3. The valve seat extractor according to claim 2, characterized in that: The outer wall of the height adjustment rod (8) movably penetrates the top wall of the mounting steel cylinder (2), and the inner wall of the positioning connection groove (7) and the outer wall of the height adjustment rod (8) are both provided with thread grooves.

4. The valve seat extractor according to claim 3, characterized in that: The thread groove of the positioning connection groove (7) and the thread groove of the height adjustment rod (8) are adapted to each other, the outer wall of the height adjustment rod (8) and the inner wall of the positioning connection groove (7) are threadedly connected together, and an auxiliary knob (9) is fixedly installed on the upper section of the height adjustment rod (8) to facilitate its rotation.

5. The valve seat extractor according to claim 1, characterized in that: The lower end surface of the height adjustment rod (8) is rotatably mounted on the upper wall surface of the movable baffle (6), and a guide connecting rod (10) capable of limiting position is fixedly mounted inside the mounting steel cylinder (2), and the guide connecting rod (10) is arranged in a vertical state.

6. The valve seat extractor according to claim 5, characterized in that: The outer wall of the guide connecting rod (10) movably penetrates the upper and lower wall surfaces of the movable baffle (6), and a connecting slide rod (12) capable of limiting position is fixedly installed inside the installation steel cylinder (2), and the connecting slide rod (12) is arranged in a horizontal state.

7. The valve seat extractor according to claim 6, characterized in that: The lower side walls of the two groups of movable stoppers (3) are fixedly mounted with fixed connecting plates (11), the outer wall of the connecting slide rod (12) movably penetrates the front and rear wall surfaces of the two groups of fixed connecting plates (11), and the outer wall of the connecting slide rod (12) movably passes through the interior of the elastic element (4).

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