Seat handle structure

Abstract

The utility model relates to a seat handle structure. The technical problem that an existing seat cannot move forwards and backwards is solved. Comprising a fixed seat and a chair seat movably arranged at the upper end of the fixed seat, a plurality of sliding holes are formed in the chair seat, sliding seats are axially arranged in the sliding holes in a sliding mode, sliding grooves which are arranged in the same direction as the sliding holes and communicated with the sliding holes are formed in the bottom of the chair seat, sliding strips are arranged in the sliding grooves, and the sliding seats, the sliding strips and the fixed seat are connected through fixing assemblies. An operating handle is movably arranged on one side of the chair seat, and an elastic locking structure capable of axially positioning the sliding strip in the sliding groove is arranged between the operating handle and the sliding strip. The chair has the advantages that the chair seat can be slidably arranged on the fixing seat through the fixing assembly, and the limiting effect on the chair seat can be guaranteed through the extension groove and the extension part. The operation handle can be conveniently installed through the handle installation base, the installation efficiency is improved, a user can conveniently control the locking state of the chair seat through the operation handle, and the use experience of the user is improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of seat, concretely relates to a seat handle structure. BACKGROUND

[0002] With the improvement of people's health consciousness and the improvement of the requirement of work and life comfort, among them, the seat is one of the equipment that people often use in daily life, and people's comfort requirement for the seat is also higher and higher, most of the existing seat seats cannot be displaced forward and backward, so that the seat cannot meet the use demand of people in different scenes, and the user experience is affected.

[0003] In order to solve the problems existing in the prior art, people have carried on the long-term exploration, and put forward all sorts of solutions. For example, Chinese patent document discloses a front and back moving mechanism of swivel chair seat cushion [202120354390.8], which comprises a fixed seat, a front and back moving seat is connected on the fixed seat through front and back sliding guide structure, at least one side of the fixed seat in the width direction is connected with vertical concave-convex locking and matching structure, the corresponding side of the front and back moving seat is connected with inclined concave-convex locking and matching structure matched with the vertical concave-convex locking and matching structure, the driving device for driving the inclined concave-convex locking and matching structure to lift along the inclined direction thereof is arranged on the front and back moving seat, the driving device drives the inclined concave-convex locking and matching structure to rise, so as to cancel the cooperation between the inclined concave-convex locking and matching structure and the vertical concave-convex locking and matching structure.

[0004] The above scheme solves the problem that the existing seat seat cannot be displaced forward and backward to a certain extent, but the scheme still has many deficiencies, for example, the locking state of the vertical concave-convex locking and matching structure needs to be controlled by the driving device and the inclined concave-convex locking and matching structure, the structure is too complex, the installation efficiency is low, and the driving device is a rope structure, which affects the service life in long-term use. SUMMARY

[0005] The utility model aims at the above problem, provides a seat handle structure.

[0006] In order to achieve the above object, the utility model discloses the following technical scheme: this seat handle structure, including fixed seat and the chair seat of movable setting in the upper end of fixed seat, the chair seat is equipped with a plurality of sliding hole along the length direction extension setting, the sliding hole is axially slidably equipped with the sliding seat, is equipped with the sliding groove that is with the sliding hole same direction setting and is intercommunicated in the bottom of chair seat, the sliding groove is axially slidably equipped with the sliding strip, the sliding seat and sliding strip and fixed seat three are connected through fixed component, and the chair seat one side is equipped with operating handle, the operating handle and sliding strip between the elastic locking structure that can be positioned in the sliding groove of sliding strip axial, through fixed component can make sliding seat and sliding strip fixed connection, and when the chair seat is in the displacement process, the sliding groove can be convenient for sliding strip to carry out the guiding displacement, and the sliding hole can be positioned to the sliding seat, can be positioned to the displacement of chair seat, and through the elastic locking structure can make the chair seat and fixed seat lock setting, can prevent the displacement of chair seat, and through operating handle can be convenient for the locking state of chair seat control, convenient for user operation, improve user experience.

[0007] In the above-mentioned seat handle structure, the number of sliding holes is four and is divided into two groups of sliding holes, each group of sliding holes has two sliding holes coaxially distributed along the length direction of the seat, and the sliding holes in the two groups of sliding holes are respectively arranged in parallel and one-to-one correspondence, and the two groups of sliding holes are arranged on both sides of the seat, so that two sliding seats are respectively arranged on both sides of the seat, the displacement guiding effect of the seat is ensured by the two sliding seats, and the positioning effect of the seat is ensured.

[0008] In the above-mentioned seat handle structure, the sliding hole is a strip-shaped hole, a surrounding plate part is arranged on the upper end of the seat and located at the circumferential periphery of the sliding hole and matched with the shape of the sliding hole, an annular step is formed between the surrounding plate part and the sliding hole, and the sliding seat is not in contact with or slidably arranged in the annular step, the sliding seat is limited by the surrounding plate part to ensure the sliding stability of the sliding seat in the sliding hole, and the sliding seat can be smoothly slidably arranged in the sliding hole by the annular step, so as to ensure the smoothness of the displacement of the seat.

[0009] In the above-mentioned seat handle structure, the sliding groove is long strip-shaped and has two, the sliding grooves are arranged in parallel at the lower end of the seat, each sliding groove corresponds to a group of sliding holes, and the two ends of the sliding groove are respectively communicated with the two sliding holes in a group of sliding holes, the sliding groove and the group of sliding holes are correspondingly arranged, so that the sliding strip and the sliding hole are correspondingly arranged, the sliding strip and the sliding seat in the sliding hole are fixedly connected, and the installation efficiency is improved.

[0010] In the seat handle structure, the length of the sliding groove is greater than the length of the sliding bar, the middle part of the sliding groove is provided with an extension groove between the two sliding holes and extending towards the two sides of the sliding groove, the middle part of the sliding bar is provided with an extension part slidingly arranged in the extension groove, the extension part can displace in the extension groove along with the displacement of the sliding bar, the extension part can be limited by the extension groove, the extension part and the sliding bar are in an integral structure, and the sliding bar can be limited by the extension part and the extension groove.

[0011] In the seat handle structure, one side of the seat is provided with a handle mounting seat on one side of one of the sliding grooves, the upper end of the handle mounting seat extends to one side of the sliding hole, the lower end of the handle mounting seat forms a mounting seat opening at the bottom of the seat, the mounting seat opening is closed by a mounting seat bottom plate, one end of the operating handle is provided with a handle holding part, and the other end is provided with a handle movable part movably arranged in the handle mounting seat, the handle movable part can be placed in the handle mounting seat through the mounting seat opening, and the handle movable part can be movably arranged in the handle mounting seat through the mounting seat bottom plate to support the handle movable part.

[0012] In the seat handle structure, the elastic locking structure includes a locking assembly arranged between the handle movable part and the sliding bar, the elastic top pressing assembly is arranged between the handle movable part and the handle mounting seat to make the handle movable part have a movement trend towards the side of the sliding bar, the handle movable part and the sliding bar can be movably locked through the locking assembly to ensure the locking effect between the seat and the fixed seat or the displacement effect of the seat, the locking assembly can be automatically reset and locked through the elastic top pressing assembly to improve the locking efficiency, ensure the locking effect, and improve the user experience.

[0013] In the seat handle structure, the locking assembly includes a locking protrusion arranged at the end of the handle movable part away from the handle holding part and penetrating into the sliding groove from the side of the handle mounting seat, the sliding bar is provided with a plurality of locking grooves arranged in sequence in the axial direction, and the locking protrusion and the locking groove are inserted and positioned with each other, the length of the locking groove is consistent with the displacement length of the seat, and the seat can be kept in the locked state at any displacement distance, and the locking effect can be ensured through the locking protrusion and the locking groove.

[0014] In the seat handle structure, the elastic pressing assembly comprises a movable hole arranged on the handle movable part, the handle mounting seat is internally provided with a limiting seat penetrating the movable hole, and the movable hole is provided with a mounting column near one end of the sliding groove, and the mounting column and the limiting seat are provided with a pressing spring therebetween, the limiting seat can be conveniently placed through the movable hole, the pressing spring can be limited through the mounting column and the limiting seat, the pressing spring is compressed when the handle holding part drives the handle movable part to move away from the seat, and the handle movable part is automatically reset through the pressing spring when the handle holding part loses the pressure, the locking convex part and the locking groove are quickly locked, and the locking effect is ensured.

[0015] In the seat handle structure, the fixed assembly comprises an upper positioning column and a limiting column arranged on the upper side of the sliding strip and extending into the sliding hole, the upper positioning column and the limiting column are respectively inserted with the lower end of the sliding seat, the lower side of the sliding strip is provided with lower positioning columns corresponding to each corner of the fixed seat, the sliding seat is provided with a first fixing hole, and the sliding strip is provided with a second fixing hole penetrating the upper positioning column and the lower positioning column, the first fixing hole and the second fixing hole are in communication and connected with third fixing holes on each corner of the fixed seat through fixing bolts, the sliding seat and the sliding strip can be positioned and installed through the first positioning column and the limiting column, and the connection stability between the sliding seat, the sliding strip and the fixed seat can be ensured through the first fixing hole, the second fixing hole and the third fixing hole.

[0016] Compared with the prior art, the seat handle structure has the advantages that:

[0017] 1. The chair seat can be slidably arranged on the fixed seat through the fixed assembly, and the limiting effect on the chair seat can be ensured through the extension groove and the extension part.

[0018] 2. The locking effect between the fixed seat and the chair seat can be ensured through the locking assembly, and the locking assembly can be automatically reset and locked through the elastic pressing assembly, the locking effect is ensured, and the locking efficiency is improved.

[0019] 3. The handle can be conveniently installed through the handle mounting seat, the installation efficiency is improved, and the user can conveniently control the locking state of the chair seat through the operation handle, and the user experience is improved. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 is a structural schematic view of the utility model.

[0021] Figure 2 is a structural schematic view of another view in the utility model.

[0022] Figure 3 is a structural sectional view of the utility model.

[0023] Figure 4 This is a structural schematic diagram of the handle mounting base in this utility model.

[0024] Figure 5 This is a schematic diagram of the elastic locking structure in this utility model.

[0025] In the diagram: 1. Fixed seat; 2. Chair seat; 21. Sliding hole; 22. Sliding seat; 23. Sliding groove; 24. Sliding strip; 25. Sliding hole group; 26. Enclosure part; 27. Annular step; 28. Extension groove; 29. ​​Extension part; 3. Fixed assembly; 31. Upper positioning post; 32. Limiting post; 33. Lower positioning post; 34. First fixed hole; 35. Second fixed hole; 36. Third fixed hole; 4. Operating handle; 41. Handle grip part; 42. Handle movable part; 5. Elastic locking structure; 51. Locking assembly; 511. Locking protrusion; 512. Elastic top pressure assembly; 52. Movable hole; 521. Limiting seat; 522. Mounting post; 523. Top pressure spring; 524. Handle mounting seat; 6. Mounting seat opening; 61. Mounting seat base plate; 62. Detailed Implementation

[0026] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0027] like Figure 1 , Figure 2 , Figure 3 , Figure 5 As shown, this type of seat handle structure includes a fixed base 1 and a seat 2 movably disposed on the upper end of the fixed base 1. The seat 2 has several sliding holes 21 extending along its length. Sliding seats 22 are axially slidable within the sliding holes 21. A sliding groove 23, which is co-located with and communicates with the sliding holes 21, is provided at the bottom of the seat 2. A sliding strip 24 is axially slidable within the sliding groove 23. The sliding seats 22, the sliding strip 24, and the fixed base 1 are connected by a fixing component 3. An operating handle 4 is movably disposed on one side of the seat 2. A space is provided between the operating handle 4 and the sliding strip 24 to allow the sliding strip 24 to be... The elastic locking structure 5, which is axially positioned within the sliding groove 23, can fix the sliding seat 22 and the sliding bar 24 together through the fixing component 3. When the chair seat 2 is displaced, the sliding groove 23 can facilitate the sliding bar 24 to move. The sliding hole 21 can limit the sliding seat 22 and limit the displacement of the chair seat 2. The elastic locking structure 5 can lock the chair seat 2 and the fixed seat 1 together to prevent the chair seat 2 from moving. The operating handle 4 can be used to control the locking state of the chair seat 2, which is convenient for user operation and improves the user experience.

[0028] Specifically, the number of sliding holes 21 is four and divided into two groups of sliding holes 25, each group of sliding holes 25 has two sliding holes 21 coaxially distributed along the length direction of the seat 2, the sliding holes 21 in the two groups of sliding holes 25 are respectively parallel to each other and one-to-one corresponding, and the two groups of sliding holes 25 are respectively arranged on both sides of the seat 2, so that two sliding seats 22 are respectively arranged on both sides of the seat 2, the displacement guiding effect of the seat 2 can be ensured by the two sliding seats 2, and the limiting effect of the seat 2 can be ensured.

[0029] The sliding hole 21 is a strip-shaped hole, and the surrounding plate part 26 is arranged on the upper end of the seat 2 and located on the circumferential periphery of the sliding hole 21 and matches the shape of the sliding hole 21, and the annular step 27 is formed between the surrounding plate part 26 and the sliding hole 21, and the sliding seat 22 is not in contact with the annular step 27 or is slidingly arranged, the surrounding plate part 26 can limit the sliding seat 22, ensure the sliding stability of the sliding seat 22 in the sliding hole 21, and the annular step 27 can ensure that the sliding seat 22 can be smoothly slidingly arranged in the sliding hole 21, and the displacement smoothness of the seat 2 is ensured.

[0030] As shown in Figure 1 , Figure 2 , Figure 4 , Figure 5 , the sliding groove 23 is long and has two, the sliding groove 23 is parallel to each other and arranged at the lower end of the seat 2, each sliding groove 23 corresponds to a group of sliding holes 25, and the two ends of the sliding groove 23 are respectively communicated with the two sliding holes 21 in a group of sliding holes 25, the sliding groove 23 is correspondingly arranged with the sliding hole group 25, which can facilitate the corresponding arrangement of the sliding strip 24 and the sliding hole 21, and can facilitate the fixing and connection of the sliding strip 24 and the sliding seat 22 in the sliding hole 21, and improve the installation efficiency.

[0031] Further, the length of the sliding groove 23 is greater than the length of the sliding strip 24, and the extension groove 28 is arranged in the middle of the sliding groove 23 and extends to the two sides of the sliding groove 23, and the extension part 29 is slidingly arranged in the extension groove 28, the extension part 29 can be displaced in the extension groove 28 with the displacement of the sliding strip 24, and the extension part 29 can be limited by the extension groove 28, and the extension part 29 and the sliding strip 29 are an integral structure, and the sliding strip 29 can be limited by the extension part 29 and the extension groove 28.

[0032] The chair seat 2 is provided with a handle mounting seat 6 on one side of one of the sliding grooves 23. The upper end of the handle mounting seat 6 extends to the side of the sliding hole 21, and the lower end of the handle mounting seat 6 forms a mounting seat opening 61 at the bottom of the chair seat 2. The mounting seat opening 61 is closed by a mounting seat bottom plate 62. One end of the operating handle 4 has a handle holding part 41, and the other end has a handle movable part 42 movably arranged in the handle mounting seat 6. The handle movable part 42 can be easily placed in the handle mounting seat 6 through the mounting seat opening 61, and the handle movable part 42 can be movably arranged in the handle mounting seat 6 through the mounting seat bottom plate 62, which can support the handle movable part 42.

[0033] In combination Figure 1 , Figure 2 , Figure 4 , Figure 5 As shown in the figure, the elastic locking structure 5 includes a locking assembly 51 arranged between the handle movable part 42 and the sliding bar 24. The handle movable part 42 and the handle mounting seat 6 are provided with an elastic pressing assembly 52 that can make the handle movable part 42 have a movement tendency towards the side of the sliding bar 24. The handle movable part 42 and the sliding bar 24 can be movably locked by the locking assembly 51, which can ensure the locking effect between the chair seat 2 and the fixed seat 1 or the displacement effect of the chair seat 2. The locking assembly 51 can be automatically reset and locked by the elastic pressing assembly 52, which can improve the locking efficiency, ensure the locking effect, and improve the user experience.

[0034] The locking assembly 51 includes a locking protrusion 511 arranged at the end of the handle movable part 42 away from the handle holding part 41 and penetrating into the sliding groove 23 from the side of the handle mounting seat 6. The sliding bar 24 is provided with a plurality of locking grooves 512 arranged axially in sequence, and the locking protrusion 511 and the locking grooves 512 are mutually inserted and positioned. The length of the locking grooves 512 is consistent with the displacement length of the chair seat 2, and the chair seat 2 can remain in a locked state at any displacement distance. The locking effect can be ensured by the locking protrusion 511 and the locking grooves 512.

[0035] Specifically, the elastic pressing assembly 52 comprises a movable hole 521 arranged on the handle movable part 42, the handle mounting seat 6 is internally provided with a limiting seat 522 penetrating in the movable hole 521, and the movable hole 521 is provided with a mounting column 523 near one end of the sliding groove 23, and the mounting column 523 and the limiting seat 522 are provided with a pressing spring 524, the limiting seat 522 can be conveniently placed through the movable hole 521, the pressing spring 524 can be limited through the mounting column 523 and the limiting seat 522, when the handle gripping part 41 drives the handle movable part 42 to move away from the seat 2, the pressing spring 524 is compressed, and when the handle gripping part 41 loses the pressure, the handle movable part 42 is automatically reset through the pressing spring 524, and drives the locking convex part 511 to quickly lock with the locking groove 512, so as to ensure the locking effect.

[0036] In combination Figure 1 , Figure 2 , Figure 3 , Figure 5 As shown in the figure, the fixed assembly 3 comprises an upper positioning column 31 and a limiting column 32 arranged on the upper side of the sliding bar 24 and extending into the sliding hole 21, the upper positioning column 31 and the limiting column 32 are respectively inserted with the lower end of the sliding seat 22, the lower side of the sliding bar 24 is provided with a lower positioning column 33 corresponding to each corner of the fixed seat 1, the sliding seat 22 is provided with a first fixed hole 34, and the sliding bar 24 is provided with a second fixed hole 35 penetrating the upper positioning column 31 and the lower positioning column 33, the first fixed hole 34 and the second fixed hole 35 are in communication with each other and connected with the third fixed hole 36 on each corner of the fixed seat 1 through the fixed bolt, the sliding seat 22 and the sliding bar 24 can be conveniently positioned and installed through the first positioning column 31 and the limiting column 32, and the connection stability between the sliding seat 22, the sliding bar 24 and the fixed seat 1 can be ensured through the first fixed hole 34, the second fixed hole 35 and the third fixed hole 36.

[0037] The principle of the embodiment is that when the seat 2 needs to be displaced, the user can control the locking state of the elastic locking structure 5 through the operation of the handle 4, so that the seat 2 is slidably arranged on the fixed seat 1, and the extension 29 and the extension groove 28 can limit the sliding of the seat 2, when the seat 2 stops displacement, the handle 4 is released, the locking assembly 51 can be automatically locked through the elastic pressing assembly 52, and the locking effect is ensured, so that the seat 2 and the fixed seat 1 are automatically locked.

[0038] The specific embodiments described herein are merely illustrative of the spirit of the present application. Those skilled in the art to which the present application belongs can make various modifications or supplements to the described specific embodiments or replace them with similar ways, without deviating from the spirit of the present application or exceeding the scope defined by the appended claims.

[0039] Although the terms such as fixed seat 1, chair seat 2, sliding hole 21, sliding seat 22, sliding groove 23, sliding bar 24, sliding hole group 25, coaming part 26, annular step 27, extension groove 28, extension part 29, fixed assembly 3, upper positioning column 31, limiting column 32, lower positioning column 33, first fixing hole 34, second fixing hole 35, third fixing hole 36, operation handle 4, handle holding part 41, handle moving part 42, elastic locking structure 5, locking assembly 51, locking convex part 511, locking groove 512, elastic pressing assembly 52, moving hole 521, limiting seat 522, mounting column 523, pressing spring 524, handle mounting seat 6, mounting seat opening 61, mounting seat bottom plate 62 and the like are used more in the text, but the possibility of using other terms is not excluded. The use of these terms is only to facilitate the description and explanation of the essence of the utility model; any kind of additional limitation is contrary to the spirit of the utility model.

Claims

1. A seat handle structure, comprising a fixed base (1) and a seat (2) movably disposed on the upper end of the fixed base (1), characterized in that, The chair seat (2) is provided with a plurality of sliding holes (21) extending along the length direction. A sliding seat (22) is axially slidably provided in the sliding hole (21). A sliding groove (23) is provided at the bottom of the chair seat (2) in the same direction as the sliding hole (21) and communicating with each other. A sliding strip (24) is axially slidably provided in the sliding groove (23). The sliding seat (22), the sliding strip (24) and the fixed seat (1) are connected by a fixing component (3). An operating handle (4) is movably provided on one side of the chair seat (2). An elastic locking structure (5) is provided between the operating handle (4) and the sliding strip (24) to axially position the sliding strip (24) in the sliding groove (23).

2. The seat handle structure according to claim 1, characterized in that, The number of sliding holes (21) is four and they are divided into two groups of sliding holes (25). Each group of sliding holes (25) has two sliding holes (21) that are coaxially distributed along the length of the seat (2). The sliding holes (21) in the two groups of sliding holes (25) are parallel to each other and are arranged in a one-to-one correspondence.

3. The seat handle structure according to claim 2, characterized in that, The sliding hole (21) is strip-shaped. A surrounding plate (26) is provided at the upper end of the seat (2) and is located around the sliding hole (21) and matches the shape of the sliding hole (21). An annular step (27) is formed between the surrounding plate (26) and the sliding hole (21). The sliding seat (22) does not contact or slides with the annular step (27).

4. A seat handle structure according to claim 2 or 3, characterized in that, The sliding groove (23) is long and there are two of them. The sliding grooves (23) are arranged parallel to each other at the lower end of the seat (2). Each sliding groove (23) corresponds to a set of sliding holes (25), and the two ends of the sliding groove (23) are connected to two sliding holes (21) in the set of sliding holes (25).

5. A seat handle structure according to claim 4, characterized in that, The length of the sliding groove (23) is greater than the length of the sliding bar (24). An extension groove (28) is provided in the middle of the sliding groove (23) between the two sliding holes (21) and extending toward both sides of the sliding groove (23). The two sides of the middle of the sliding bar (24) have extension portions (29) that are slidably disposed in the extension groove (28).

6. A seat handle structure according to claim 2, characterized in that, The chair seat (2) has a handle mounting seat (6) located on one side of one of the sliding grooves (23). The upper end of the handle mounting seat (6) extends to the side of the sliding hole (21), and the lower end of the handle mounting seat (6) forms a mounting seat opening (61) at the bottom of the chair seat (2). The mounting seat opening (61) is closed by the mounting seat base plate (62). The operating handle (4) has a handle grip (41) at one end and a handle movable part (42) movably disposed in the handle mounting seat (6) at the other end.

7. A seat handle structure according to claim 6, characterized in that, The elastic locking structure (5) includes a locking component (51) disposed between the handle movable part (42) and the sliding bar (24), and an elastic pressing component (52) is provided between the handle movable part (42) and the handle mounting base (6) to enable the handle movable part (42) to have a tendency to move toward the sliding bar (24).

8. A seat handle structure according to claim 7, characterized in that, The locking assembly (51) includes a locking protrusion (511) disposed at the end of the handle movable part (42) away from the handle grip part (41) and inserted into the sliding groove (23) from the side of the handle mounting base (6). The sliding bar (24) has a plurality of locking grooves (512) arranged axially in sequence on one side, and the locking protrusion (511) and the locking groove (512) are interlocked and positioned with each other.

9. A seat handle structure according to claim 7, characterized in that, The elastic pressing assembly (52) includes a movable hole (521) provided on the movable part of the handle (42), a limiting seat (522) passing through the movable hole (521) is provided in the handle mounting base (6), and a mounting post (523) is provided at one end of the movable hole (521) near the sliding groove (23), and a pressing spring (524) is provided between the mounting post (523) and the limiting seat (522).

10. A seat handle structure according to claim 1, characterized in that, The fixing component (3) includes an upper positioning post (31) and a limiting post (32) disposed on the upper side of the sliding bar (24) and extending into the sliding hole (21). The upper positioning post (31) and the limiting post (32) are respectively inserted into the lower end of the sliding seat (22). A lower positioning post (33) is provided on the lower side of the sliding bar (24) and is respectively corresponding to each corner of the fixing seat (1). The sliding seat (22) has a first fixing hole (34) and the sliding bar (24) has a second fixing hole (35) that passes through the upper positioning post (31) and the lower positioning post (33). The first fixing hole (34) and the second fixing hole (35) are interconnected and connected to the third fixing hole (36) on each corner of the fixing seat (1) by fixing bolts.

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