Positioning device for air tightness detection of engine cylinder block

Abstract

The utility model relates to the technical field of engine device detection, and discloses a positioning device for engine cylinder airtightness detection, which comprises a base, the front end and the rear end of the top of the base are fixedly connected with connecting columns, the tops of the connecting columns are fixedly connected with a top plate, and the top of the base is provided with an engine cylinder fixing mechanism. The engine cylinder body fixing mechanism comprises an adjusting assembly and an engine cylinder body fixing assembly, the adjusting assembly is arranged at the top of the base, the engine cylinder body fixing assembly is arranged at the top of the adjusting assembly, and external auxiliary fixing mechanisms are arranged at the front end and the rear end of the top plate. The first supporting column and the second supporting column are inserted into the cylinder body, the inner supporting plate can abut against the inner wall of the cylinder body by controlling the electric telescopic column to stretch out and draw back, efficient fixing is conducted from the interior, fixing is conducted in cooperation with an external auxiliary fixing mechanism, and the stability of the cylinder body in the air tightness detection process can be guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of engine component detection, in particular to a positioning device for detecting the air tightness of an engine cylinder. Background Art

[0002] The airtightness of the engine cylinder directly affects the compression pressure and combustion efficiency within the cylinder. Poor cylinder sealing can lead to compressed gas leakage, reducing engine power output and fuel efficiency. Airtightness testing can promptly identify and correct these issues, ensuring full engine performance.

[0003] According to an engine cylinder pallet positioning device disclosed on the patent website (authorization publication number: CN215753657U), "The present utility model discloses an engine cylinder pallet positioning device, which relates to the field of engine cylinder technology and includes a fixed plate, a one-way threaded shaft is provided on one side of the top of the fixed plate, and a first guide shaft is fixedly connected to the other side of the top of the fixed plate, a knob is fixedly connected to the top of the one-way threaded shaft, a blocking disk is fixedly connected to the top of the first guide shaft, a movable plate is provided on the one-way threaded shaft and the first guide shaft, and a first fixed block is fixedly connected to the bottom side of the movable plate. In the present utility model, the distance between the two movable blocks can be adjusted by using the one-way threaded shaft, the knob, the first guide shaft, the two-way threaded shaft, the second guide shaft, the first fixed block, the second fixed block, the movable block, the handwheel and the blocking disk in combination, so that the positioning device can position engine cylinder pallets of different sizes, thereby increasing flexibility, expanding the scope of application and improving practicality."

[0004] Based on the above, the applicant believes that the following defects exist:

[0005] The engine cylinder pallet positioning device includes a fixing plate, which can position engine cylinder pallets of different sizes, thereby increasing flexibility, expanding the scope of application, and improving practicality. However, the device cannot efficiently fix engine cylinders of different sizes, and cannot ensure that the generator cylinder is always in a stable state during the air tightness test. Utility Model Content

[0006] The purpose of the present utility model is to provide a positioning device for detecting the air tightness of an engine cylinder block, so as to solve the problems raised in the above-mentioned background technology.

[0007] To achieve the above-mentioned object, the present invention provides the following technical solution: a positioning device for detecting the air tightness of an engine cylinder, comprising a base, connecting columns fixedly connected to the front and rear ends of the top of the base, a top plate fixedly connected to the top of the connecting columns, an engine cylinder fixing mechanism provided on the top of the base, the engine cylinder fixing mechanism comprising an adjustment assembly and an engine cylinder fixing assembly, the adjustment assembly being provided on the top of the base, the engine cylinder fixing assembly being provided on the top of the adjustment assembly, and external auxiliary fixing mechanisms being provided on the front and rear ends of the top plate;

[0008] The engine cylinder fixing assembly includes a first support plate, and the adjustment assembly includes a support block, the first support plate is fixedly connected to the top of the support block, the first support plate is fixedly connected to the first support column at the center of the top of the first support plate, the second support plate is fixedly connected to the second support column at the center of the top of the second support plate, the first support column and the second support column are fixedly connected to the surface of the first support column and the second support column, and the end of the electric telescopic column away from the first support column and the second support column is fixedly connected to the inner support plate, the generator cylinder to be fixed is placed on the top of the device, and the first support column and the second support column are inserted into the cylinder, and the inner support plate can be pressed against the inner wall of the cylinder by controlling the extension and contraction of the electric telescopic column, so that efficient fixation is performed from the inside, and the fixation is performed in conjunction with an external auxiliary fixing mechanism to ensure the stability of the cylinder during the air tightness detection process.

[0009] Preferably, the first support plate and the first support column are arranged at the left end of the top of the top plate, and the second support plate and the second support column are arranged at the right end of the top of the top plate.

[0010] Preferably, the first support plate, the first support column, the second support plate, the second support column, the electric telescopic column and the inner support plate are symmetrically distributed on the left and right sides of the top of the top plate.

[0011] Preferably, the adjustment component includes a first slide groove, the first slide groove is opened on the top of the base, and a second slide groove is opened on the top surface of the top plate. A slider is slidably connected inside the first slide groove, and a support block is fixedly connected to the top of the slider. The position spacing of the adjustment component can be adjusted by this component to adapt to the fixing conditions of engine cylinders of various sizes, improve the fixing efficiency of the adjustment component, and further enhance the fixing effect of the engine cylinder.

[0012] Preferably, the first sliding groove is opened at the front and rear ends of the top of the base, and the second sliding groove is opened at the front and rear ends of the top of the top plate.

[0013] Preferably, the support block passes through the second sliding groove.

[0014] Preferably, four groups of the sliding blocks and the supporting blocks are provided, and two groups of the first sliding grooves and the second sliding grooves are provided.

[0015] Preferably, the external auxiliary fixing mechanism includes a side bracket, the side bracket is fixedly connected to the front and back of the top plate, the bottom of the side bracket is fixedly connected to the support frame, the top of the side bracket is fixedly connected to the back plate, the inner side of the back plate is fixedly connected to a push rod, the inner side of the push rod is fixedly connected to a connecting plate, the inner side of the connecting plate is fixedly connected to a telescopic column, a spring is provided on the surface of the telescopic column, the inner side of the telescopic column is fixedly connected to a splint, and the inner side of the splint is fixedly connected to an anti-slip pad.

[0016] Preferably, the support frame is fixedly connected to the front and back sides of the base and the top plate, and the side bracket is fixedly connected to one end of the top of the side bracket away from the top plate.

[0017] Preferably, the connecting plate is fixedly connected to one end of the push rod away from the back plate, the splint is fixedly connected to one end of the telescopic column away from the connecting plate, and the anti-slip pad is fixedly connected to one end of the splint away from the telescopic column.

[0018] Compared with the prior art, the present invention provides a positioning device for detecting the air tightness of an engine cylinder, which has the following beneficial effects:

[0019] 1. The positioning device for testing the air tightness of the engine cylinder is provided with the following steps: the generator cylinder to be fixed is placed on the top of the device, the first support column and the second support column are inserted into the cylinder, and the inner support plate can be pressed against the inner wall of the cylinder by controlling the extension and retraction of the electric telescopic column, so as to perform efficient fixing from the inside, and cooperate with the external auxiliary fixing mechanism for fixing, so as to ensure the stability of the cylinder during the air tightness testing process.

[0020] 2. The positioning device for detecting the air tightness of the engine cylinder is provided with a component through which the position spacing of the adjustment component can be adjusted to adapt to the fixing conditions of engine cylinders of various sizes, thereby improving the fixing efficiency of the adjustment component and further strengthening the fixing effect of the engine cylinder. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without inventive work.

[0022] Figure 1 This is a schematic diagram of the overall structure of the utility model;

[0023] Figure 2 This is a schematic diagram of the engine cylinder fixing assembly of the utility model structure;

[0024] Figure 3This is a schematic diagram of the structural adjustment component of the utility model;

[0025] Figure 4 This is a schematic diagram of the external auxiliary fixing mechanism of the utility model structure.

[0026] In the figure: 1. base; 2. connecting column; 3. top plate; 4. engine cylinder fixing mechanism; 41. adjustment component; 411. first slide groove; 412. second slide groove; 413. slider; 414. support block; 42. engine cylinder fixing assembly; 421. first support plate; 422. first support column; 423. second support plate; 424. second support column; 425. electric telescopic column; 426. inner support plate; 5. external auxiliary fixing mechanism; 51. side bracket; 52. support frame; 53. back plate; 54. push rod; 55. connecting plate; 56. telescopic column; 57. spring; 58. splint; 59. anti-slip pad. DETAILED DESCRIPTION

[0027] 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 embodiments described 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 making creative efforts are within the scope of protection of the present invention.

[0028] In this utility model, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection; direct connection, indirect connection through an intermediate medium, internal communication between two components, or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0029] The utility model provides the following technical solutions:

[0030] Example 1

[0031] See also Figures 1-3 A positioning device for testing the air tightness of an engine cylinder includes a base 1. Connecting columns 2 are fixedly connected to the front and rear ends of the top of the base 1. A top plate 3 is fixedly connected to the top of the connecting column 2. An engine cylinder fixing mechanism 4 is provided on the top of the base 1. The engine cylinder fixing mechanism 4 includes an adjusting component 41 and an engine cylinder fixing component 42. The adjusting component 41 is provided on the top of the base 1. The engine cylinder fixing component 42 is provided on the top of the adjusting component 41. External auxiliary fixing mechanisms 5 are provided on the front and rear ends of the top plate 3.

[0032] The engine cylinder fixing assembly 42 includes a first support plate 421, and the adjustment assembly 41 includes a support block 414. The first support plate 421 is fixedly connected to the top of the support block 414. The center of the top of the first support plate 421 is fixedly connected to a first support column 422. The top of the support block 414 is fixedly connected to a second support plate 423. The center of the top of the second support plate 423 is fixedly connected to a second support column 424. The surfaces of the first support column 422 and the second support column 424 are fixedly connected to an electric telescopic column 425. The end of the electric telescopic column 425 away from the first support column 422 and the second support column 424 is fixedly connected to an inner support plate 426. The generator cylinder to be fixed is placed on the top of the device, and the first support column 422 and the second support column 424 are inserted into the cylinder. By controlling the extension and retraction of the electric telescopic column 425, the inner support plate 426 can be pressed against the inner wall of the cylinder, so that efficient fixation is performed from the inside. The external auxiliary fixing mechanism 5 is used for fixation to ensure the stability of the cylinder during the air tightness test.

[0033] The first support plate 421 and the first support column 422 are arranged at the top left end of the top plate 3, and the second support plate 423 and the second support column 424 are arranged at the top right end of the top plate 3;

[0034] The first support plate 421, the first support column 422, the second support plate 423, the second support column 424, the electric telescopic column 425 and the inner support plate 426 are symmetrically distributed on the left and right sides of the top of the top plate 3;

[0035] The adjustment assembly 41 includes a first slide groove 411, which is provided on the top of the base 1. A second slide groove 412 is provided on the top surface of the top plate 3. A slider 413 is slidably connected to the interior of the first slide groove 411, and a support block 414 is fixedly connected to the top of the slider 413. This assembly can be used to adjust the position and spacing of the adjustment assembly 41 to adapt to the fixing conditions of engine cylinders of various sizes, thereby improving the fixing efficiency of the adjustment assembly 41 and further strengthening the fixing effect of the engine cylinder.

[0036] The first chute 411 is provided at the front and rear ends of the top of the base 1, and the second chute 412 is provided at the front and rear ends of the top of the top plate 3;

[0037] The support block 414 passes through the second sliding groove 412;

[0038] There are four groups of sliders 413 and support blocks 414 , and two groups of first sliding grooves 411 and second sliding grooves 412 .

[0039] Example 2

[0040] See also Figures 1-4And on the basis of embodiment one, further obtained external auxiliary fixing mechanism 5 includes side support 51, side support 51 is fixedly connected to the front and back of top plate 3, the bottom of side support 51 is fixedly connected with support frame 52, the top of side support 51 is fixedly connected with back plate 53, the inner side of back plate 53 is fixedly connected with push rod 54, the inner side of push rod 54 is fixedly connected with connecting plate 55, the inner side of connecting plate 55 is fixedly connected with telescopic column 56, spring 57 is arranged on the surface of telescopic column 56, telescopic column 56 is fixedly connected with clamping plate 58 on the inner side, and antiskid pad 59 is fixedly connected to the inner side of clamping plate 58;

[0041] Support frame 52 is fixedly connected to the front and back of base 1 and top plate 3, and side support 51 is fixedly connected to the top of side support 51 away from top plate 3 at one end;

[0042] Connecting plate 55 is fixedly connected to the end of push rod 54 away from back plate 53, clamping plate 58 is fixedly connected to the end of telescopic column 56 away from connecting plate 55, and antiskid pad 59 is fixedly connected to the end of clamping plate 58 away from telescopic column 56.

[0043] In actual operation, the position interval of the adjusting assembly 41 can be adjusted by the assembly to adapt to the fixing of engine blocks of various sizes, improve the fixing efficiency of the adjusting assembly 41, and further strengthen the fixing effect of the engine block. The engine block to be fixed is placed on the top of the device, the first support column 422 and the second support column 424 are inserted into the cylinder body, the inner support plate 426 is abutted on the inner wall of the cylinder body by controlling the telescopic column 425, and the cylinder body is fixed from the inside. The stability of the cylinder body during the airtightness detection process can be ensured by cooperating with the external auxiliary fixing mechanism 5. The connecting plate 55 is pushed to the engine cylinder by operating the push rod 54, the fixing effect is strengthened by the elastic force of the telescopic column 56 and the spring 57, the engine cylinder is stably clamped on the top of the top plate 3 by the clamping plate 58, and the clamping effect is strengthened by the arrangement of the antiskid pad 59. After the fixing is completed, the staff can perform corresponding airtightness detection on the engine cylinder.

[0044] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations, an element defined by the phrase "comprising a..." does not exclude the presence of additional identical elements in the process, method, article, or device comprising the element.

Claims

1. A positioning device for detecting air tightness of an engine cylinder, comprising a base (1), characterized in that: The front and rear ends of the top of the base (1) are fixedly connected to connecting columns (2), the top of the connecting columns (2) is fixedly connected to a top plate (3), the top of the base (1) is provided with an engine cylinder fixing mechanism (4), the engine cylinder fixing mechanism (4) comprises an adjustment component (41) and an engine cylinder fixing component (42), the adjustment component (41) is provided on the top of the base (1), the engine cylinder fixing component (42) is provided on the top of the adjustment component (41), and the top plate (3) is provided with external auxiliary fixing mechanisms (5) at the front and rear ends; The engine cylinder fixing assembly (42) includes a first support plate (421), and the adjustment assembly (41) includes a support block (414). The first support plate (421) is fixedly connected to the top of the support block (414), and a first support column (422) is fixedly connected to the center of the top of the first support plate (421). The top of the support block (414) is fixedly connected to a second support plate (423), and the center of the top of the second support plate (423) is fixedly connected to a second support column (424). The surfaces of the first support column (422) and the second support column (424) are fixedly connected to electric telescopic columns (425), and one end of the electric telescopic column (425) away from the first support column (422) and the second support column (424) is fixedly connected to an inner support plate (426).

2. The positioning device for detecting air tightness of an engine cylinder according to claim 1, characterized in that: The first support plate (421) and the first support column (422) are arranged at the top left end of the top plate (3), and the second support plate (423) and the second support column (424) are arranged at the top right end of the top plate (3).

3. The positioning device for detecting air tightness of an engine cylinder according to claim 1, characterized in that: The first support plate (421), the first support column (422), the second support plate (423), the second support column (424), the electric telescopic column (425) and the inner support plate (426) are symmetrically distributed on the left and right sides of the top of the top plate (3).

4. The positioning device for detecting air tightness of an engine cylinder according to claim 1, characterized in that: The adjustment component (41) includes a first slide groove (411), the first slide groove (411) is opened on the top of the base (1), a second slide groove (412) is opened on the top surface of the top plate (3), a slider (413) is slidably connected inside the first slide groove (411), and a support block (414) is fixedly connected to the top of the slider (413).

5. The positioning device for detecting air tightness of an engine cylinder according to claim 4, characterized in that: The first slide groove (411) is opened at the front and rear ends of the top of the base (1), and the second slide groove (412) is opened at the front and rear ends of the top of the top plate (3).

6. The positioning device for detecting air tightness of an engine cylinder according to claim 4, characterized in that: The support block (414) passes through the interior of the second sliding groove (412).

7. The positioning device for detecting air tightness of an engine cylinder according to claim 4, characterized in that: The sliding blocks (413) and the supporting blocks (414) are provided in four groups, and the first sliding grooves (411) and the second sliding grooves (412) are provided in two groups.

8. The positioning device for detecting air tightness of an engine cylinder according to claim 1, characterized in that: The external auxiliary fixing mechanism (5) includes a side bracket (51), the side bracket (51) is fixedly connected to the front and back of the top plate (3), the bottom of the side bracket (51) is fixedly connected to a support frame (52), the top of the side bracket (51) is fixedly connected to a back plate (53), the inner side of the back plate (53) is fixedly connected to a push rod (54), the inner side of the push rod (54) is fixedly connected to a connecting plate (55), the inner side of the connecting plate (55) is fixedly connected to a telescopic column (56), a spring (57) is provided on the surface of the telescopic column (56), the inner side of the telescopic column (56) is fixedly connected to a splint (58), and the inner side of the splint (58) is fixedly connected to an anti-slip pad (59).

9. The positioning device for detecting air tightness of an engine cylinder according to claim 8, characterized in that: The support frame (52) is fixedly connected to the front and back sides of the base (1) and the top plate (3), and the side bracket (51) is fixedly connected to an end of the top of the side bracket (51) away from the top plate (3).

10. The positioning device for detecting air tightness of an engine cylinder according to claim 8, characterized in that: The connecting plate (55) is fixedly connected to one end of the push rod (54) away from the back plate (53), the clamping plate (58) is fixedly connected to one end of the telescopic column (56) away from the connecting plate (55), and the anti-slip pad (59) is fixedly connected to one end of the clamping plate (58) away from the telescopic column (56).

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