Air filter cover mounting structure of generator

Abstract

The utility model provides an air filter cover mounting structure of a generator, and belongs to the technical field of generators. The problem that when the size of an access hole is small, an air filter cover cannot be detached due to the installation mode of an existing air filter cover is solved. The air filter cover installation structure of the generator comprises an engine shell, the engine shell is provided with an air filter installation box, an air filter cover is arranged on a port of the air filter installation box, the lower end of the air filter cover is provided with a barb, the outer end of the barb is arranged upwards, the lower end of the air filter installation box is provided with a limiting rod, and the barb is hooked on the limiting rod. And the upper end of the air filter cover is clamped with the upper end of the air filter mounting box through a buckle. According to the disassembly mode of the air filter cover of the structure, a large-size maintenance opening does not need to be formed, disassembly of the air filter cover is not affected, the size of the maintenance opening is reduced under the condition that it is guaranteed that the air filter cover can be normally disassembled, then the size of the decorative plate is small, and the manufacturing cost is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of generators, in particular to an air filter cover mounting structure of a generator. Background Art

[0002] The air filter is a crucial component of the generator's air intake system, providing clean air to the engine to prevent it from inhaling air laden with impurities and particles during operation, which increases the risk of erosion and damage. The main components of an air filter include a filter element and a housing. The filter element is the primary filter component responsible for filtering the gas, while the housing is an external structure that provides necessary protection for the filter element. For example, the China Patent Network discloses an air filter [Authorization Announcement No.: CN220434906U], which includes a generator housing, an air filter housing formed on the generator housing, a generator housing cover plate covering the generator housing, an air filter inlet formed on the generator housing cover plate, an air filter cover connected to one end of the air filter housing located on the generator housing, and a fixing screw connecting the air filter cover to the air filter housing.

[0003] The existing digital generator includes a generator set and an outer shell. The generator set is arranged in the outer shell, and the air filter is generally arranged on the generator set. Since the air filter needs to be replaced after long-term use, in order to facilitate maintenance of the air filter, an inspection port is generally opened at the position of the outer shell corresponding to the air filter. Since the distance between the air filter cover and the outer shell is small, there are three traditional ways of fixing the air filter cover and the air filter housing. The first is to use fasteners to connect the upper and lower ends of the air filter cover to the air filter housing. The second is to use a snap connection between the upper end of the air filter cover and the air filter housing, and a fastener to the lower end of the air filter housing. The third is to use a snap connection between the upper and lower ends of the air filter cover and the air filter housing. These three fixing methods require that the inspection port is large enough, that is, the entire air filter cover is located within the projection range of the inspection port to facilitate the removal of the air filter cover from the inspection port. If the inspection port is too large, a large decorative panel is required to decorate and cover it, which has high manufacturing costs. Utility Model Content

[0004] The purpose of this utility model is to address the above-mentioned problems in the existing technology and propose a generator air filter cover installation structure. The technical problem to be solved by this utility model is: how to solve the problem that when the size of the inspection port is small, the existing air filter cover installation method makes the air filter cover unable to be removed.

[0005] The purpose of this utility model can be achieved through the following technical solutions:

[0006] A generator air filter cover mounting structure includes an engine casing, the engine casing having an air filter mounting box, and an air filter cover is provided on the port of the air filter mounting box. The structure is characterized in that the lower end of the air filter cover has a barbed hook, the outer end of the barbed hook is arranged upward, the lower end of the air filter mounting box has a limiting rod, the barbed hook is hooked on the limiting rod, and the upper end of the air filter cover is connected to the upper end of the air filter mounting box by a snap buckle.

[0007] The principle of air filter cover removal is as follows: first, release the snap connection between the upper end of the air filter cover and the upper end of the air filter mounting box, then move the air filter cover downward a certain distance to separate the hook from the limit rod, then move the air filter cover outward a certain distance to offset the position of the hook from the limit rod, and then pull the air filter cover upward to complete the removal of the air filter cover. The installation method between the air filter cover and the air filter mounting box in this structure makes the air filter cover removal method significantly different from the existing technology. The air filter cover removal method of this structure does not require a large maintenance port. The size of the maintenance port only needs to cover the port of the air filter mounting box, which does not affect the removal of the air filter cover. Because the size of the maintenance port is reduced while ensuring the normal removal of the air filter cover, the size of the decorative panel is also smaller, which reduces the manufacturing cost.

[0008] In the aforementioned generator air filter cover mounting structure, the air filter mounting box has two symmetrically arranged mounting portions on its lower end surface. The limiting rod is disposed between the two mounting portions, with the ends of the limiting rod respectively connected to the corresponding mounting portions. The provision of two mounting portions facilitates the placement of the limiting rod, thereby facilitating the hook's engagement with the limiting rod.

[0009] In the above-mentioned generator air filter cover mounting structure, the air filter mounting box, the mounting portion and the limiting rod are integrally formed. The integrally formed structure makes the overall structure of the mounting portion and the limiting rod stronger and less prone to damage.

[0010] In the aforementioned generator air filter cover mounting structure, the upper end of the air filter cover has an upwardly protruding clamping portion, the clamping portion is provided with a clearance hole, and the upper end of the air filter mounting box has a buckle, which passes through the clearance hole and hooks onto the clamping portion. This structure realizes a clamping structure between the upper end of the air filter cover and the upper end of the air filter mounting box. When disassembly is required, the buckle is pressed to release the clamping portion, and then the air filter cover is flipped outward by a certain angle. The lower end of the air filter cover rotates a small angle around the limit rod to allow the buckle to disengage from the clearance hole. The air filter cover is then moved downward by a certain distance to offset the position of the hook and the limit rod. The air filter cover is then lifted upward to complete disassembly.

[0011] In the aforementioned generator air filter cover mounting structure, the clip has an arc-shaped portion connected to the upper end of the air filter mounting box. The outer end of the arc-shaped portion extends toward the air filter cover to form a horizontal portion that passes through the clearance hole. The upper surface of the horizontal portion has an upwardly protruding engaging protrusion. The upper surface of the engaging protrusion is an inclined surface. The end of the engaging protrusion facing the air filter mounting box has a limiting surface that can hook onto the engaging portion. The provision of the arc-shaped portion allows the clip to easily deform when pressed, facilitating the disengagement of the engaging protrusion from the engaging portion. The provision of the inclined surface serves as a guide during the insertion of the clip into the clearance hole, facilitating the smooth insertion of the clip into the clearance hole and the engagement of the clip with the engaging portion.

[0012] In the above-mentioned air filter cover mounting structure of a generator, the clamping portion is integrally formed with the air filter cover, and the buckle is integrally formed with the air filter mounting box.

[0013] Compared with the prior art, the air filter cover mounting structure of the generator of the present invention has the following advantages: the present structure first releases the snap connection between the upper end of the air filter cover and the upper end of the air filter mounting box, then moves the air filter cover as a whole downward a certain distance to separate the barb from the limit rod, then moves the air filter cover as a whole outward a certain distance to offset the position of the barb from the limit rod, and then pulls the air filter cover as a whole upward, thus completing the removal of the air filter cover. The installation method between the air filter cover and the air filter mounting box in the present structure makes the removal method of the air filter cover significantly different from that of the prior art. The removal method of the air filter cover of the present structure does not require a large maintenance port. The size of the maintenance port only needs to cover the port of the air filter mounting box, which does not affect the removal of the air filter cover. Because the size of the maintenance port is reduced while ensuring the normal removal of the air filter cover, the size of the decorative panel is also smaller, thereby reducing the manufacturing cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is one of the three-dimensional structural diagrams of the present utility model.

[0015] Figure 2 This is the second schematic diagram of the three-dimensional structure of the present utility model.

[0016] Figure 3 This is one of the partial three-dimensional structural schematic diagrams of the utility model.

[0017] Figure 4 This is the second schematic diagram of the partial three-dimensional structure of the utility model.

[0018] Figure 5 It is a three-dimensional structural schematic diagram of the air filter cover of the utility model.

[0019] In the figure, 1. engine housing; 10. air filter mounting box; 11. limiting rod; 12. mounting portion; 13. buckle; 130. arc-shaped portion; 131. horizontal portion; 132. snap-fit ​​protrusion; 133. inclined surface; 134. limiting surface; 3. air filter cover; 30. inverted hook; 31. snap-fit ​​portion; 32. clearance hole. DETAILED DESCRIPTION

[0020] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0021] like Figures 1 to 5 As shown, the air filter cover mounting structure of the present generator includes an engine housing 1 having an air filter mounting box 10, an air filter cover 3 disposed on the port of the air filter mounting box 10, a barb 30 disposed at the lower end of the air filter cover 3, the outer end of the barb 30 facing upward, a stop rod 11 disposed at the lower end of the air filter mounting box 10, the barb 30 hooked on the stop rod 11, and the upper end of the air filter cover 3 is engaged with the upper end of the air filter mounting box 10 via a snap. In this embodiment, the upper end of the air filter cover 3 has an upwardly protruding engaging portion 31, the engaging portion 31 having a clearance hole 32 defined therein, and a snap 13 disposed at the upper end of the air filter mounting box 10. The snap 13 passes through the clearance hole 32, and the barb 30 is secured to the engaging portion 31. When disassembly is required, the latch 13 is pressed to release the engagement with the engaging portion 31, and the air filter cover 3 is then tilted outward by a certain angle. The lower end of the air filter cover 3 is rotated slightly around the stop rod 11, allowing the latch 13 to disengage from the clearance hole 32. The air filter cover 3 is then moved downward by a certain distance so that the hook 30 is offset from the stop rod 11. The air filter cover 3 is then lifted upward to complete the disassembly of the air filter cover 3. The mounting method between the air filter cover 3 and the air filter mounting box 10 in this structure significantly differs from the prior art in that the disassembly method of the air filter cover 3 in this structure does not require a large maintenance port. The size of the maintenance port only needs to cover the port of the air filter mounting box 10, which does not affect the disassembly of the air filter cover 3. Because the size of the maintenance port is reduced while ensuring that the air filter cover 3 can be properly disassembled, the size of the decorative plate is also smaller, thereby reducing the manufacturing cost.

[0022] like Figure 2 and Figure 3 As shown, the lower end surface of the air filter mounting box 10 has two symmetrically arranged mounting parts 12, the limiting rod 11 is arranged between the two mounting parts 12, and the ends of the limiting rod 11 are respectively connected to the corresponding mounting parts 12, and the air filter mounting box 10, the mounting parts 12 and the limiting rod 11 are integrally formed.

[0023] like Figure 3 、 Figure 4 and Figure 5 As shown, the buckle 13 has an arc-shaped portion 130 connected to the upper end of the air filter mounting box 10, and the outer end of the arc-shaped portion 130 extends toward the air filter cover 3 to form a horizontal portion 131 passing through the makeshift hole 32. The upper surface of the horizontal portion 131 has an upwardly protruding snap-fitting protrusion 132, and the upper surface of the snap-fitting protrusion 132 is an inclined surface 133. The snap-fitting protrusion 132 has a limiting surface 134 that can be hooked on the snap-fitting portion 31 at one end facing the air filter mounting box 10. The snap-fitting portion 31 is integrally formed with the air filter cover 3, and the buckle 13 is integrally formed with the air filter mounting box 10. The setting of the arc-shaped portion 130 makes it easy for the buckle 13 to deform when pressed, which facilitates the disengagement of the locking protrusion 132 from the locking portion 31; the setting of the inclined surface 133 plays a guiding role in the process of inserting the buckle 13 into the clearance hole 32, which is conducive to the smooth insertion of the buckle 13 into the clearance hole 32 to complete the locking of the buckle 13 and the locking portion 31.

[0024] The specific embodiments described herein are merely illustrative of the spirit of the present invention. Persons skilled in the art may make various modifications, additions, or substitutions to the described specific embodiments without departing from the spirit of the present invention or exceeding the scope defined by the appended claims.

Claims

1. An air filter cover mounting structure for a generator, comprising an engine housing (1), wherein the engine housing (1) has an air filter mounting box (10), and an air filter cover (3) is provided on a port of the air filter mounting box (10), characterized in that: The lower end of the air filter cover (3) has a hook (30), the outer end of the hook (30) is arranged upward, the lower end of the air filter installation box (10) has a limit rod (11), the hook (30) is hooked on the limit rod (11), and the upper end of the air filter cover (3) is connected to the upper end of the air filter installation box (10) through a buckle.

2. The air filter cover mounting structure of a generator according to claim 1, characterized in that: The lower end surface of the air filter mounting box (10) is provided with two symmetrically arranged mounting portions (12), the limiting rod (11) is arranged between the two mounting portions (12), and the ends of the limiting rod (11) are respectively connected to the corresponding mounting portions (12).

3. The air filter cover mounting structure of a generator according to claim 2, characterized in that: The air filter installation box (10), the installation portion (12) and the limiting rod (11) are integrally formed.

4. The air filter cover mounting structure of a generator according to claim 1, characterized in that: The upper end of the air filter cover (3) has an upwardly protruding clamping portion (31), and a clearance hole (32) is provided on the clamping portion (31). The upper end of the air filter installation box (10) has a buckle (13), and the buckle (13) passes through the clearance hole (32) and then hooks (30) on the clamping portion (31).

5. The air filter cover mounting structure of a generator according to claim 4, characterized in that: The buckle (13) has an arc-shaped portion (130) connected to the upper end of the air filter installation box (10), and the outer end of the arc-shaped portion (130) extends toward the air filter cover (3) to form a horizontal portion (131) passing through the clearance hole (32). The upper surface of the horizontal portion (131) has an upwardly protruding clamping protrusion (132), and the upper surface of the clamping protrusion (132) is an inclined surface (133). The clamping protrusion (132) has a limiting surface (134) that can be hooked on the clamping portion (31) at one end facing the air filter installation box (10).

6. The air filter cover mounting structure of a generator according to claim 4 or 5, characterized in that: The clamping portion (31) is integrally formed with the air filter cover (3), and the buckle (13) is integrally formed with the air filter installation box (10).

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