Filter clamping mechanism

Abstract

The filter clamping mechanism comprises a first clamping part, a second clamping part and a clamping part, the second clamping part is arranged opposite to the first clamping part, and a clamping position capable of clamping the filter is formed between the first clamping part and the second clamping part; the driving mechanism is connected with the first clamping part and the second clamping part and used for driving the first clamping part and the second clamping part to move in the opposite direction or the reverse direction; the first clamping pieces are arranged at intervals in the axis direction of the first clamping part; the second clamping pieces are arranged in the axis direction of the second clamping part at intervals, are arranged opposite to the first clamping pieces and clamp the filter when the first clamping part and the second clamping part move oppositely, and elastic pieces are arranged between the first clamping pieces and the first clamping part and / or between the second clamping pieces and the second clamping part and used for clamping the filter when the first clamping part and the second clamping part move oppositely. When the elastic piece enables the clamping piece to clamp the filter, the elastic piece is in the trend of keeping moving outwards. Due to the existence of the elastic piece, when the filter is clamped, force towards the movement trend of the filter with errors is given, so that the filter with the errors can obtain clamping force which is large enough, the clamping state is maintained, the filter cannot fall off due to external stress or self gravity, and meanwhile, a certain avoiding space can be given during clamping; and the phenomenon that the filter shell is damaged due to too tight clamping is avoided.

Description

Technical Field

[0001] The utility model specifically relates to a filter clamping mechanism. Background Art

[0002] The air filter is one of the important parts of the engine. Its performance not only determines the reliability and life of the engine, but also has a great impact on the engine's power, economy and emission performance. The air tightness of the air filter is directly related to the quality of the motor equipment, so the pressure regulation and leak detection of the automobile filter is a very important technical field.

[0003] The existing filter includes a shell and a cover plate, a cavity is provided between the shell and the cover plate, a paper core is provided in the cavity, an oil inlet (oil outlet) is provided on the cover plate, and an oil outlet (oil inlet) is provided at the bottom of the shell. The shell and the cover plate are fixedly connected by screws or processed into a double-layer bite at the connection between the two to ensure the connection strength and sealing performance between the filter cover and the shell, and a mounting screw hole for installation on the car will be provided in the center of the filter. The air tightness test of the filter generally adopts the immersion method, that is, the product filter is first fixed, and then the fixed filter is immersed in water, and then gas is injected into the product filter, and the air tightness of the filter is determined by observing the bubbles on the water surface.

[0004] The Chinese patent (CN214643087U) previously applied by the applicant discloses a filter clamping mechanism for filter testing equipment, which includes a fixed base plate, a relatively movable main clamp and a sub-clamp arranged in sequence, a plurality of clamping positions for clamping the filter are formed between the main clamp and the sub-clamp, a pushing mechanism for driving the main clamp to move is provided between the fixed base plate and the main clamp, a clamping mechanism for driving the main clamp and the sub-clamp to clamp is provided between the main clamp and the sub-clamp, and a plurality of elastic structures for providing clamping force to the main clamp and the sub-clamp are provided between the main clamp and the sub-clamp. By adding the elastic structure, the clamping reliability of the two clamps can be ensured by utilizing the clamping force provided by the elastic structure during automatic clamping.

[0005] However, the applicant discovered during actual use by customers that filters of the same specification actually have certain deviations among each other, that is, the diameter of each filter will have an error within a certain allowable range. During the air tightness test, the clamping mechanism generally needs to clamp several filters. When there are filters with larger or smaller errors in the same batch of filters undergoing air tightness test, when they are clamped at the same time, the oversized filter limits the relative movement of the clamps, and the diameter of the clamping area between the two clamps is slightly larger than the filter with a smaller diameter error. This may cause the filter with a smaller diameter error to be subjected to a smaller clamping force, and the filter may be separated from the clamping area due to force or its own gravity during subsequent processes or clamping, causing the filter to fall off. Utility Model Content

[0006] In view of the deficiencies in the prior art, the utility model aims to provide a filter clamping mechanism.

[0007] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0008] A filter clamping mechanism, comprising:

[0009] a first clamping portion;

[0010] The second clamping portion is arranged opposite to the first clamping portion, and a clamping position for clamping the filter is formed between the first clamping portion and the second clamping portion;

[0011] A driving mechanism, connected to the first clamping part and the second clamping part, for driving the first clamping part and the second clamping part to move toward or in opposite directions;

[0012] A plurality of first clamping members are arranged at intervals along the axis direction of the first clamping portion;

[0013] A plurality of second clamping members are arranged at intervals along the axis direction of the second clamping portion and are arranged opposite to the first clamping member, and clamp the filter when the first clamping portion and the second clamping portion move toward each other.

[0014] An elastic member is provided between the first clamping member and the first clamping portion and / or between the second clamping member and the second clamping portion, and the elastic member enables the clamping member to maintain a tendency to move outward when clamping the filter.

[0015] By adopting the above technical solution, when the first clamping member and the second clamping member cooperate with each other to form a clamping position, the elastic member gives a certain amount of elastic deformation to any group of the clamping members or all the clamping members. When clamping the filter, a force is given to move toward the filter with the error, so that the filter with the error can obtain a sufficiently large clamping force to maintain the clamping state and will not fall off due to external force or its own gravity. At the same time, a certain amount of avoidance space can be provided during clamping to avoid the phenomenon of damaging the filter housing due to over-tight clamping.

[0016] A circular clamping position matched with the outer wall of the filter or a quadrilateral clamping position tangent to the outer wall of the filter may be formed between the first clamping member and the second clamping member.

[0017] By adopting the above technical solution, a clamping state that is compatible with the filter can be achieved, or filters of different specifications can be adapted directly through a tangent clamping solution, so that there is no need to frequently replace clamps of different shapes, which greatly improves the adaptability of the clamps.

[0018] The first clamping member and the second clamping member are each provided with an arc-shaped clamping opening or a V-shaped clamping opening on one side opposite to the other.

[0019] By adopting the above technical solution, the clamping method of the clamping position is changed by setting an arc-shaped clamp or a V-shaped clamp, and the change between the fitting clamping method and the tangential clamping method is realized to meet the usage requirements of different scenarios.

[0020] A plurality of anti-sliding blocks are arranged at intervals on the surface of the arc-shaped clamping opening or the V-shaped clamping opening.

[0021] By adopting the above technical solution and arranging the anti-sliding block, the clamping stability between the clamping opening and the filter is improved and the service life thereof is prolonged.

[0022] The anti-sliding block is made of silicone or rubber.

[0023] By adopting the above technical solution, the anti-sliding block made of silicone or rubber material increases the friction of the filter and is more convenient to install on the clamping mouth.

[0024] The filter clamping mechanism also includes:

[0025] The elastic mechanism is disposed between the first clamping portion and the second clamping portion and is used to impart a force to the first clamping portion and the second clamping portion to clamp toward each other.

[0026] By adopting the above technical solution, the elastic mechanism can be a tension spring, rubber, rubber band or other structures, so as to force the two clamping parts to clamp toward each other, thereby giving the two clamping parts a clamping force and improving the stability of the clamping.

[0027] The first clamping portion and the second clamping portion are both provided with corresponding through holes, and fixing members for fixing the elastic mechanism are provided in the through holes.

[0028] By adopting the above technical solution, the elastic mechanism is fixed inside the first clamping part and the second clamping part, and the two ends of the elastic mechanism are fixed by fixing parts, so that the elastic mechanism forces the two clamping parts to clamp toward each other due to elastic force, thereby improving the clamping stability.

[0029] The filter clamping mechanism also includes:

[0030] At least one tensioning mechanism, wherein the fixed end of the tensioning mechanism is fixedly arranged on the upper side of the first clamping part or the second clamping part, and the movable end of the tensioning mechanism is fixedly arranged on the upper side of the second clamping part or the first clamping part, and moves synchronously with the driving mechanism.

[0031] The above technical solution is adopted to avoid deformation of the first clamping part and the second clamping part when they are subjected to force and move toward each other at both ends. The tensioning mechanism is set in the middle position of the first clamping part or the second clamping part, and a tensioning force is applied between the first clamping part and the second clamping part to prevent deformation in the middle of the first clamping part and the second clamping part due to their length.

[0032] The driving mechanism includes an open clamping cylinder arranged on both sides of the first clamping part and the second clamping part. The output end of the open clamping cylinder is respectively connected to the first clamping part and the second clamping part, and drives the first clamping part and the second clamping part to move in opposite directions.

[0033] By adopting the above technical solution, the open clamp cylinder is a cylinder with two-way output at both ends. After the cylinder is connected to the first clamping part and the second clamping part, it can drive the two clamping parts to open or close, thereby completing clamping and loosening.

[0034] The filter clamping mechanism also includes:

[0035] The connecting plate is arranged parallel to the first clamping portion or the second clamping portion and is used to support and fix the driving mechanism.

[0036] By adopting the above technical solution, the driving mechanism is fixed on the connecting plate, and the first clamping part and the second clamping part are not connected to the connecting part, so that the force of the driving mechanism can be directly transmitted to the first clamping part and the second clamping part, making the overall structure more stable.

[0037] Other effects of the above optional manner will be described below in conjunction with specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Figure 1 It is the front view of embodiment 1 of the present utility model.

[0039] Figure 2 This is a schematic structural diagram of Example 1 of the utility model.

[0040] Figure 3 for Figure 1 Schematic diagram of the cross section at AA in the middle.

[0041] Figure 4 This is a schematic structural diagram of Example 2 of the present utility model.

[0042] Figure 5 It is the front view of embodiment 2 of the present utility model.

[0043] Figure 6 It is a partial cross-sectional view of the clamping member of Example 2 of the present utility model. DETAILED DESCRIPTION

[0044] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0045] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back...) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0046] Example 1

[0047] A filter clamping mechanism, comprising:

[0048] A first clamping portion 2;

[0049] The second clamping portion 1 is arranged opposite to the first clamping portion 2, and a clamping position 4 for clamping the filter is formed between the first clamping portion and the second clamping portion;

[0050] A driving mechanism, connected to the first clamping part and the second clamping part, for driving the first clamping part and the second clamping part to move toward or in opposite directions;

[0051] A plurality of first clamping members 11 are arranged at intervals along the axis direction of the first clamping portion;

[0052] A plurality of second clamping members 21 are arranged at intervals along the axis direction of the second clamping portion and are arranged opposite to the first clamping member, and clamp the filter when the first clamping portion and the second clamping portion move toward each other.

[0053] An elastic member is provided between the first clamping member and the first clamping portion and / or between the second clamping member and the second clamping portion, and the elastic member enables the clamping member to maintain a tendency to move outward when clamping the filter.

[0054] The outward direction refers to the direction toward the clamped filter, that is, the filter applies inward pressure to the elastic member, so that it is in a compressed state, thereby maintaining a tendency to move outward.

[0055] The first clamping part and the second clamping part are both long strip structures, and a plurality of detachable or non-detachable clamping parts are sequentially arranged along the axial direction thereof, wherein the clamping parts have arc-shaped clamping openings, and the arc-shaped clamping openings are adapted to the housing of the filter to facilitate the tight grasping of the filter.

[0056] At the same time, the first clamping member and the second clamping member can be integrally formed on the first clamping part and the second clamping part, wherein a groove is provided at the bottom end of the clamping opening of the clamping member on either side, and a movable slider 211 is provided in the groove. The slider 211 and the clamping member are combined to form a complete clamping member, and an elastic member is provided on the rear side of each slider. The elastic member 212 is preferably a spring, and other elastic materials can also be used. The surface of the slider is provided with an anti-sliding member to improve its buffering and anti-slip capabilities.

[0057] In order to improve efficiency, several clamping positions can be set between the two clamping parts to clamp multiple filters at the same time and improve production efficiency. In order to ensure the clamping accuracy, several corresponding arc-shaped clamping openings are set between the first clamping part and the second clamping part, preferably semicircular, adapted to the filter shell wall, and the two arc-shaped clamping openings move relative to each other to form clamping positions. The two ends of the arc-shaped clamping opening are chamfered to form a straight surface, so that the entry end is slightly larger than the outer diameter of the filter, which is convenient for the filter to enter the arc-shaped clamping opening better. Several anti-sliding blocks are set at intervals on the inner wall of the arc-shaped clamping opening. Anti-sliding blocks can be set in a single clamping opening or in both. When the two clamping parts cooperate with each other, it can play a certain buffering and anti-slip role for the filter. At the same time, it can also play a compensating role for the filter with a slightly deviated outer diameter, ensuring the clamping strength.

[0058] In order to further improve the gripping force of the movable anti-sliding block, in the initial position, the movable anti-sliding block partially exposes the surface of the arc-shaped clamping opening, so that it can first contact with the filter and be squeezed.

[0059] The first clamping part and the second clamping part are provided with corresponding through holes, and the two ends of the elastic mechanism 100 are respectively fixed in the two through holes and fixed by fixing parts, wherein the elastic mechanism can be a tension spring, rubber, rubber band or other structures.

[0060] The fixing piece can be detachably fixed in the two through holes, so as to facilitate the replacement of the elastic mechanism. The setting of the elastic mechanism can prompt the two clamping parts to clamp toward each other, thereby giving the two clamping pieces a clamping force, thereby improving the clamping stability.

[0061] Locking cylinders 6 are provided at both ends of the first clamping part and the second clamping part. The locking cylinders are fixedly arranged on both sides of one of the clamping parts through a first sliding member 7, while second sliding members 8 are provided on both sides of the other clamping part. The driving rod of the locking cylinder is fixedly connected to the second sliding member.

[0062] A connecting plate 3 is provided in parallel with the first clamping part and the second clamping part, and side plates are provided at both ends of the connecting plate perpendicular to the axial direction thereof. The first clamping part and the second clamping part are placed between the two side plates, and a guide rail is provided on the side plate. The first sliding member and the second sliding member form a sliding fit with the guide rail. At the same time, a driving mechanism is provided on the connecting plate, and the driving mechanism is a top driving force source 5, which can be a cylinder or a motor. The driving rod of the top driving force source is fixedly connected to the first sliding member, and then the top driving force source is used to drive the two clamping parts to move toward or in the opposite direction.

[0063] Example 2

[0064] A filter clamping mechanism, comprising:

[0065] A first clamping portion 2;

[0066] The second clamping portion 1 is arranged opposite to the first clamping portion, and a clamping position for clamping the filter is formed between the first clamping portion and the second clamping portion;

[0067] A driving mechanism, connected to the first clamping part and the second clamping part, for driving the first clamping part and the second clamping part to move toward or in opposite directions;

[0068] A plurality of first clamping members are arranged at intervals along the axis direction of the first clamping portion;

[0069] A plurality of second clamping members are arranged at intervals along the axis direction of the second clamping portion and are arranged opposite to the first clamping member, and clamp the filter when the first clamping portion and the second clamping portion move toward each other.

[0070] An elastic member is provided between the first clamping member and the first clamping portion and / or between the second clamping member and the second clamping portion, and the elastic member enables the clamping member to maintain a tendency to move outward when clamping the filter.

[0071] The outward direction refers to the direction toward the clamped filter, that is, the filter applies inward pressure to the elastic member 212, so that it is in a compressed state, thereby maintaining a tendency to move outward.

[0072] The first clamping part and the second clamping part are both long strip structures, and a plurality of detachable or non-detachable clamping parts are sequentially arranged along the axial direction thereof, wherein the clamping part has a V-shaped clamping opening, and the arc-shaped clamping opening is adapted to the housing of the filter, so as to tightly grasp the filter a.

[0073] Changing the arc-shaped clamp in Example 1 to a V-shaped clamp can make the abutment mode with the filter become tangent, and the abutting surface will still have a large area of ​​surface contact to avoid the original circular clamping position from changing from surface contact to point contact when abutting against filters of different specifications, which will cause unstable clamping and easy tipping, thereby enabling the first V-shaped clamp to clamp filters of different specifications.

[0074] The first clamping member and the second clamping member are both detachable and arranged on the first clamping part and the second clamping part, so as to be easy to replace. At the same time, an elastic member is arranged between the clamping member and the clamping part on any one side or both sides, so that there is a moving stroke between the clamping member and the clamping part. When filters with different outer diameter errors in the same specification contact the clamping member, the forces compressing the elastic member are different, so that the clamping member can apply force toward the filter direction, thereby achieving a sufficiently large gripping force between each filter, which can meet the gripping force requirements within the outer diameter error range, and the movement of the clamping member matches the outer diameter error range, thereby meeting the gripping force requirements of qualified filters, and the phenomenon of over-tightening or over-loosening will not occur, which will cause damage to the filter housing or falling off.

[0075] The filter clamping mechanism also includes:

[0076] The elastic mechanism is disposed between the first clamping portion and the second clamping portion and is used to impart a force to the first clamping portion and the second clamping portion to clamp toward each other.

[0077] By adopting the above technical solution, the elastic mechanism can be a tension spring, rubber, rubber band or other structures, so as to force the two clamping parts to clamp toward each other, thereby giving the two clamping parts a clamping force and improving the stability of the clamping.

[0078] The first clamping part and the second clamping part are both provided with corresponding through holes, and the through holes are provided with fixing members for fixing the elastic mechanism. The elastic mechanism is preferably a tension spring, and both ends of the spring are respectively fixed in the corresponding through holes by fixing members.

[0079] By fixing the elastic mechanism inside the first clamping part and the second clamping part, and fixing the two ends of the elastic mechanism by means of a fixing piece, the elastic mechanism forces the two clamping parts to clamp toward each other due to elastic force, thereby improving the clamping stability.

[0080] The filter clamping mechanism also includes:

[0081] At least one tensioning mechanism 10, the fixed end of the tensioning mechanism is fixedly arranged on the upper side of the first clamping part or the second clamping part, and the movable end is fixedly arranged on the upper side of the second clamping part or the first clamping part, and moves synchronously with the driving mechanism. It is preferably arranged in the middle position of the first clamping part or the second clamping part, provides the force of the middle section, and moves synchronously with the driving mechanisms on both sides.

[0082] In order to avoid deformation of the first clamping part and the second clamping part when they are subjected to force and move toward each other at both ends, the tensioning mechanism is arranged in the middle of the first clamping part or the second clamping part, and a tensioning force is applied between the first clamping part and the second clamping part to prevent deformation in the middle of the first clamping part and the second clamping part due to their length.

[0083] The driving mechanism includes an open clamping cylinder 5a arranged on both sides of the first clamping part and the second clamping part. The output end of the open clamping cylinder is respectively connected to the first clamping part and the second clamping part, and drives the first clamping part and the second clamping part to move in opposite directions.

[0084] The open clamping cylinder 5a is a cylinder with two-way output at both ends. After the cylinder is connected to the first clamping part and the second clamping part, it can drive the two clamping parts to open or close, thereby completing clamping and loosening.

[0085] The filter clamping mechanism also includes:

[0086] The connecting plate 3 is arranged parallel to the first clamping portion or the second clamping portion, and is used to support and fix the driving mechanism.

[0087] The driving mechanism is fixed on the connecting plate, and the first clamping part and the second clamping part are not connected to the connecting part, so that the force of the driving mechanism can be directly transmitted to the first clamping part and the second clamping part, making the overall structure more stable.

[0088] The embodiments should not be regarded as limiting the present invention, but any improvements based on the spirit of the present invention should be within the protection scope of the present invention.

Claims

1. A filter clamping mechanism, characterized in that: It includes: a first clamping portion; The second clamping portion is arranged opposite to the first clamping portion, and a clamping position for clamping the filter is formed between the first clamping portion and the second clamping portion; A driving mechanism, connected to the first clamping part and the second clamping part, for driving the first clamping part and the second clamping part to move toward or in opposite directions; A plurality of first clamping members are arranged at intervals along the axis direction of the first clamping portion; A plurality of second clamping members are arranged at intervals along the axis direction of the second clamping portion and are arranged opposite to the first clamping member, and clamp the filter when the first clamping portion and the second clamping portion move toward each other. An elastic member is provided between the first clamping member and the first clamping portion and / or between the second clamping member and the second clamping portion, and the elastic member enables the clamping member to maintain a tendency to move outward when clamping the filter.

2. The filter clamping mechanism according to claim 1, characterized in that: A circular clamping position matched with the outer wall of the filter or a quadrilateral clamping position tangent to the outer wall of the filter may be formed between the first clamping member and the second clamping member.

3. The filter clamping mechanism according to claim 1 or 2, characterized in that: The first clamping member and the second clamping member are both provided with an arc-shaped clamping opening or a V-shaped clamping opening on one side opposite to the other.

4. The filter clamping mechanism according to claim 3, characterized in that: A plurality of anti-sliding blocks are arranged at intervals on the surface of the arc-shaped clamping opening or the V-shaped clamping opening.

5. The filter clamping mechanism according to claim 4, characterized in that: The anti-sliding block is made of silicone or rubber.

6. The filter clamping mechanism according to claim 1, characterized in that: The filter clamping mechanism also includes: The elastic mechanism is disposed between the first clamping portion and the second clamping portion and is used to impart a force to the first clamping portion and the second clamping portion to clamp toward each other.

7. The filter clamping mechanism according to claim 6, characterized in that: The first clamping portion and the second clamping portion are both provided with corresponding through holes, and fixing members for fixing the elastic mechanism are provided in the through holes.

8. The filter clamping mechanism according to claim 1, characterized in that: The filter clamping mechanism also includes: At least one tensioning mechanism, wherein the fixed end of the tensioning mechanism is fixedly arranged on the upper side of the first clamping part or the second clamping part, and the movable end of the tensioning mechanism is fixedly arranged on the upper side of the second clamping part or the first clamping part, and moves synchronously with the driving mechanism.

9. The filter clamping mechanism according to claim 1, characterized in that: The driving mechanism includes an open clamping cylinder arranged on both sides of the first clamping part and the second clamping part. The output end of the open clamping cylinder is respectively connected to the first clamping part and the second clamping part, and drives the first clamping part and the second clamping part to move in opposite directions.

10. The filter clamping mechanism according to claim 1 or 9, characterized in that: The filter clamping mechanism also includes: The connecting plate is arranged parallel to the first clamping portion or the second clamping portion and is used to support and fix the driving mechanism.

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