Sealing structure for high-pressure piston compressor

Abstract

The sealing structure for the high-pressure piston compressor comprises a piston block, piston sleeves are arranged on the surface of the piston block, a piston ring is fixedly installed on the top of the surface of the piston block, a piston rod is fixedly installed on the top of the piston block, inserting holes are formed in the inner sides of the piston sleeves, and the inserting holes are communicated with the piston sleeves. Clamping grooves are formed in the inner sides of the piston sleeves correspondingly, a mounting mechanism is arranged in an inner cavity of the piston block and comprises a rotating disc and a fixing bolt, the rotating disc is movably connected to the bottom of the inner cavity of the piston block, arc-shaped grooves are formed in the top of the rotating disc correspondingly, and connecting rods are slidably connected into inner cavities of the four arc-shaped grooves correspondingly; and moving blocks are fixedly mounted at the tops of the four connecting rods, by arranging the mounting mechanism, the piston sleeve can be independently disassembled and replaced, and the situation that after the piston sleeve is used for a long time, the sealing performance of the piston sleeve is reduced due to the fact that the shape of the piston sleeve is changed is avoided.

Description

Technical Field

[0001] The utility model relates to a sealing structure for a high-pressure piston compressor, belonging to the technical field of sealing structures. Background Art

[0002] The work of a piston compressor is completed by the continuous change of the working volume composed of the cylinder, the air valve and the piston that reciprocates in the cylinder. The piston is an important component in the compressor.

[0003] A Chinese patent publication (publication number: CN 217682167 U) discloses a compressor piston sealing structure. This utility model relates to the field of compressor piston technology and includes a piston cylinder, a piston rod disposed inside the piston cylinder, a hollow piston block connected to the lower end of the piston rod, an adjusting member disposed at the bottom of the hollow piston block, a sleeve slidingly sleeved on the outer side of the hollow piston block, a piston sleeve disposed on the outer side of the sleeve, and a piston ring disposed on the outer side of the sleeve above the piston sleeve, and a positioning member disposed inside the hollow piston block. This compressor piston sealing structure achieves a dual sealing effect by providing a piston sleeve and a piston ring. The piston sleeve is made of ceramic material, making it more wear-resistant and less susceptible to damage, thereby increasing the service life of the compressor piston.

[0004] However, the installation method in the above device can only fix the sleeve in the front-to-back direction, so that the piston may shake in the left and right directions when in use. At the same time, the turntable in the above device cannot be limited. Since the piston is in a fast-moving state during use, the turntable may rotate on its own, which may cause the sleeve to fall off, making the sleeve less stable during installation and inconvenient for operators to use.

[0005] To this end, a sealing structure for a high-pressure piston compressor is proposed. Utility Model Content

[0006] In view of this, the present invention provides a sealing structure for a high-pressure piston compressor to solve or alleviate the technical problems existing in the prior art and at least provide a beneficial option.

[0007] The technical solution of the present utility model is achieved as follows: a sealing structure for a high-pressure piston compressor, comprising a piston block, a piston sleeve is provided on the surface of the piston block, a piston ring is fixedly installed on the top of the piston block surface, a piston rod is fixedly installed on the top of the piston block, an insertion hole is provided on the inner side of the piston sleeve, a clamping groove is provided on the inner side of the piston sleeve, a mounting mechanism is provided in the inner cavity of the piston block, the mounting mechanism comprises a turntable and a fixing bolt, the turntable is movably connected to the bottom of the inner cavity of the piston block, an arc groove is provided on the top of the turntable, connecting rods are slidably connected in the inner cavities of the four arc grooves, moving blocks are fixedly installed on the tops of the four connecting rods, insert blocks are fixedly installed on the outer sides of the four moving blocks, a disc is fixedly installed in the inner cavity of the piston block, a knob is movably connected to the bottom of the piston block, and the top of the knob is fixedly connected to the bottom of the turntable.

[0008] Further preferably, friction grooves are provided on the surfaces of the knobs, and the friction grooves are arranged at equal intervals.

[0009] Further preferably, the two fixing bolts are both threadedly connected to the bottom of the knob, and the tops of the two fixing bolts are both threadedly connected to the inner surface of the piston block.

[0010] Further preferably, a slide groove is provided on the top of each of the discs, and the four connecting rods pass through the inner cavities of the four slide grooves and extend to the top of the disc.

[0011] Further preferably, the top of each of the discs is provided with a moving groove, and the bottoms of the four moving blocks are slidably connected to the inner cavities of the eight moving grooves.

[0012] Further preferably, the surfaces of the piston blocks are each provided with an inserting groove, and the four inserting blocks each penetrate the inner cavities of the four inserting grooves and extend into the inner cavities of the four insertion holes.

[0013] Further preferably, the inner cavities of the four jacks and the inner cavities of the four plug-in slots are all in the same horizontal direction, and the inner cavities of the four plug-in slots and the inner cavities of the four jacks are all communicated with each other.

[0014] Further preferably, a clamping block is fixedly mounted on the surface of each of the piston blocks, and each of the four clamping blocks is clamped in the inner cavities of the four clamping grooves.

[0015] The embodiment of the present invention has the following advantages due to the adoption of the above technical solution:

[0016] 1. The utility model provides an installation mechanism. Through the rotation of the turntable, the connecting rod drives the moving block and the insert block to move outward along the inner cavity of the arc groove. At this time, the insert block moves parallel to the outside and fixes the piston sleeve on all sides. The installation of the piston sleeve can make the piston sleeve able to be disassembled and replaced separately, avoiding the piston sleeve from changing its shape after long-term use, thereby reducing its sealing performance. At the same time, the synchronous fixation of the piston sleeve on all sides can avoid the piston sleeve from shaking in the front and back or left and right directions after installation. At the same time, the knob can be kept in a fixed state through the limitation of the fixing bolt, avoiding the knob from rotating automatically due to the operation of the piston block and the piston sleeve, thereby ensuring the stability of the overall installation of the piston sleeve and facilitating use by the operator.

[0017] Second, the utility model can improve the friction force of the knob surface by providing a friction groove, making it easier for the operator to grasp the knob for rotation. By providing a fixing bolt, the knob can be limited to prevent the knob from rotating on its own, thereby reducing the stability of the piston sleeve installation. By providing a sliding groove, the movement of the connecting rod can be limited to prevent the connecting rod from deviating when moving, thereby affecting the installation or disassembly of the piston sleeve. By providing a moving groove, the movement of the moving block can be limited to prevent the moving block from deviating when moving, thereby affecting the piston. The fixing work of the sleeve can limit the movement of the plug block by setting the plug-in groove, so as to avoid offset when the plug block moves, thereby affecting the stability of the piston sleeve during installation. By setting the plug-in groove and the socket, since both are in the same horizontal direction and are interconnected, the plug block can be smoothly inserted into the inner cavity of the socket, thereby completing the fixing work of the piston sleeve. By setting the clamping block, the piston sleeve can be clamped to the outside of the piston block, so that the plug block and the socket are in the same horizontal direction, thereby improving the convenience of inserting the plug block into the inner cavity of the socket.

[0018] The above summary is for the purpose of description only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments and features described above, further aspects, embodiments and features of the present invention will be readily apparent by reference to the accompanying drawings and the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0020] Figure 1This is a schematic diagram of the three-dimensional front view structure of the utility model;

[0021] Figure 2 This is a schematic diagram of the piston sleeve disassembly structure of the utility model;

[0022] Figure 3 For the utility model Figure 1 A in the middle is an enlarged structural diagram;

[0023] Figure 4 This is a schematic diagram of the piston block structure of the utility model;

[0024] Figure 5 This is a schematic diagram of the installation mechanism structure of the utility model;

[0025] Figure 6 This is a schematic diagram of the turntable structure of the present utility model.

[0026] Figure numerals: 1. Piston block; 2. Mounting mechanism; 201. Turntable; 202. Arc groove; 203. Connecting rod; 204. Moving block; 205. Insert block; 206. Disc; 207. Knob; 208. Friction groove; 209. Fixing bolt; 210. Slide groove; 211. Moving groove; 212. Insert groove; 213. Clamping block; 3. Piston rod; 4. Piston sleeve; 5. Piston ring; 6. Socket; 7. Clamping groove. DETAILED DESCRIPTION

[0027] Hereinafter, only certain exemplary embodiments are briefly described. As will be appreciated by those skilled in the art, the described embodiments may be modified in various ways without departing from the spirit or scope of the present invention. Therefore, the drawings and description are to be regarded as illustrative in nature and not restrictive.

[0028] The embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0029] Example 1

[0030] like Figure 1-6As shown, the embodiment of the present invention provides a sealing structure for a high-pressure piston compressor, including a piston block 1, a piston sleeve 4 is provided on the surface of the piston block 1, a piston ring 5 is fixedly installed on the top of the surface of the piston block 1, a piston rod 3 is fixedly installed on the top of the piston block 1, a socket 6 is provided on the inner side of the piston sleeve 4, a clamping groove 7 is provided on the inner side of the piston sleeve 4, a mounting mechanism 2 is provided in the inner cavity of the piston block 1, the mounting mechanism 2 includes a turntable 201 and a fixing bolt 209, the turntable 201 is movable The turntable 201 is movably connected to the bottom of the inner cavity of the piston block 1. The top of the turntable 201 is provided with an arc groove 202. The inner cavity of the four arc grooves 202 is slidably connected with a connecting rod 203. The top of the four connecting rods 203 is fixedly installed with a moving block 204. The outer sides of the four moving blocks 204 are fixedly installed with an insert block 205. A disc 206 is fixedly installed in the inner cavity of the piston block 1. The bottom of the piston block 1 is movably connected with a knob 207. The top of the knob 207 is fixedly connected to the bottom of the turntable 201.

[0031] By setting up the mounting mechanism 2, the turntable 201 rotates, so that the connecting rod 203 drives the moving block 204 and the insert block 205 to move outward along the inner cavity of the arc groove 202. At this time, the insert block 205 moves parallel to the outside and fixes the piston sleeve 4 on all sides. By installing the piston sleeve 4, the piston sleeve 4 can be disassembled and replaced separately, so as to avoid the piston sleeve 4 from changing its shape after long-term use, thereby reducing its sealing performance. At the same time, the synchronous fixation of the piston sleeve 4 on all sides can avoid the piston sleeve 4 from shaking in the front and back or left and right directions after installation. At the same time, the knob 207 can be kept in a fixed state through the limitation of the fixing bolt 209, so as to avoid the knob 207 from rotating automatically due to the operation of the piston block 1 and the piston sleeve 4, thereby ensuring the stability of the overall installation of the piston sleeve 4 and facilitating the use of the operator.

[0032] Example 2

[0033] like Figure 2-5As shown, in one embodiment, the surface of the knob 207 is provided with friction grooves 208, and the friction grooves 208 are arranged at equal intervals. Two fixing bolts 209 are threadedly connected to the bottom of the knob 207, and the tops of the two fixing bolts 209 are threadedly connected to the inner surface of the piston block 1. The top of the disk 206 is provided with a sliding groove 210. The four connecting rods 203 pass through the inner cavities of the four sliding grooves 210 and extend to the top of the disk 206. The top of the disk 206 is provided with a moving groove 211. The four moving blocks 204 The bottoms are all slidably connected to the inner cavities of the eight movable grooves 211, and the surfaces of the piston blocks 1 are provided with plug-in grooves 212. The four plug blocks 205 all pass through the inner cavities of the four plug-in grooves 212 and extend to the inner cavities of the four sockets 6. The inner cavities of the four sockets 6 and the inner cavities of the four plug-in grooves 212 are all in the same horizontal direction, and the inner cavities of the four plug-in grooves 212 and the inner cavities of the four sockets 6 are connected to each other. The surfaces of the piston blocks 1 are fixedly installed with clamping blocks 213, and the four clamping blocks 213 are all clamped in the inner cavities of the four clamping grooves 7.

[0034] By providing the friction groove 208, the friction force on the surface of the knob 207 can be increased, making it easier for the operator to grip the knob 207 and rotate it. By providing the fixing bolt 209, the knob 207 can be limited to prevent the knob 207 from rotating on its own, thereby reducing the stability of the installation of the piston sleeve 4. By providing the sliding groove 210, the movement of the connecting rod 203 can be limited to prevent the connecting rod 203 from deflecting when moving, thereby affecting the installation or disassembly of the piston sleeve 4. By providing the moving groove 211, the movement of the moving block 204 can be limited to prevent the moving block 204 from deflecting when moving, thereby affecting the installation or disassembly of the piston sleeve 4. The fixing work of the cylinder 4 can be achieved by setting the insertion groove 212, which can limit the movement of the plug block 205 to avoid offset when the plug block 205 moves, thereby affecting the stability of the piston sleeve 4 during installation. By setting the insertion groove 212 and the socket 6, since both are in the same horizontal direction and are interconnected, the plug block 205 can be smoothly inserted into the inner cavity of the socket 6, thereby completing the fixing work of the piston sleeve 4. By setting the clamping block 213, the piston sleeve 4 can be clamped to the outside of the piston block 1, so that the plug block 205 and the socket 6 are in the same horizontal direction, thereby improving the convenience of inserting the plug block 205 into the inner cavity of the socket 6.

[0035] When the present invention is in operation: first, the piston sleeve 4 is clamped to the outer side of the piston block 1 through the cooperation of the clamping block 213 and the clamping groove 7, then the knob 207 is grasped and rotated, at this time the turntable 201 rotates synchronously, the arc groove 202 and the slide groove 210 cooperate with each other, and the connecting rod 203 moves synchronously to the outside, so that the moving block 204 drives the plug block 205 to move outward, and the plug block 205 is inserted into the inner cavity of the socket 6 along the inner cavity of the plug groove 212, completing the installation of the piston sleeve 4, and then the fixing bolt 209 passes through the inner surface of the knob 207 and is threadedly connected to the inner surface of the bottom of the piston block 1, thereby completing the installation of the piston sleeve 4.

[0036] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any person skilled in the art can easily conceive of various modifications or substitutions within the technical scope disclosed in the present invention, and such modifications or substitutions are intended to be within the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be based on the scope of protection of the claims.

Claims

1. A sealing structure for a high-pressure piston compressor, comprising a piston block (1), characterized in that: The surface of the piston block (1) is provided with a piston sleeve (4), the top of the surface of the piston block (1) is fixedly installed with a piston ring (5), the top of the piston block (1) is fixedly installed with a piston rod (3), the inner side of the piston sleeve (4) is provided with a socket (6), the inner side of the piston sleeve (4) is provided with a clamping groove (7), and the inner cavity of the piston block (1) is provided with a mounting mechanism (2), the mounting mechanism (2) includes a turntable (201) and a fixing bolt (209), the turntable (201) is movably connected to the bottom of the inner cavity of the piston block (1), The top of the turntable (201) is provided with an arc groove (202), the inner cavities of the four arc grooves (202) are slidably connected with connecting rods (203), the tops of the four connecting rods (203) are fixedly installed with moving blocks (204), the outer sides of the four moving blocks (204) are fixedly installed with plug blocks (205), the inner cavity of the piston block (1) is fixedly installed with a disc (206), the bottom of the piston block (1) is movably connected with a knob (207), and the top of the knob (207) is fixedly connected to the bottom of the turntable (201).

2. A sealing structure for a high-pressure piston compressor according to claim 1, characterized in that: The surfaces of the knobs (207) are each provided with friction grooves (208), and the friction grooves (208) are arranged at equal intervals.

3. The sealing structure for a high-pressure piston compressor according to claim 1, characterized in that: The two fixing bolts (209) are both threadedly connected to the bottom of the knob (207), and the tops of the two fixing bolts (209) are both threadedly connected to the inner surface of the piston block (1).

4. The sealing structure for a high-pressure piston compressor according to claim 1, characterized in that: The top of each of the discs (206) is provided with a slide groove (210), and the four connecting rods (203) pass through the inner cavities of the four slide grooves (210) and extend to the top of the disc (206).

5. The sealing structure for a high-pressure piston compressor according to claim 1, characterized in that: The top of each of the discs (206) is provided with a moving groove (211), and the bottoms of the four moving blocks (204) are slidably connected to the inner cavities of the eight moving grooves (211).

6. The sealing structure for a high-pressure piston compressor according to claim 1, characterized in that: The surfaces of the piston blocks (1) are each provided with a plug-in groove (212), and the four plug-in blocks (205) each penetrate the inner cavities of the four plug-in grooves (212) and extend into the inner cavities of the four sockets (6).

7. The sealing structure for a high-pressure piston compressor according to claim 6, characterized in that: The inner cavities of the four jacks (6) and the inner cavities of the four plug slots (212) are all in the same horizontal direction, and the inner cavities of the four plug slots (212) and the inner cavities of the four jacks (6) are all communicated with each other.

8. The sealing structure for a high-pressure piston compressor according to claim 1, characterized in that: A clamping block (213) is fixedly mounted on the surface of the piston block (1), and the four clamping blocks (213) are clamped in the inner cavities of the four clamping grooves (7).

Images