A heat exchanger assembly for sound insulation and noise reduction for ships

Abstract

The present invention relates to the technical field of heat exchangers, and specifically to a heat exchanger assembly for sound insulation and noise reduction for ships, comprising a mounting plate, a mounting assembly being provided on the side of the mounting plate, a heat exchange plate being overlapped on the surface of the mounting assembly, a supporting assembly being slidably connected to the side of the positioning seat, and one end of the supporting assembly being sleeved on the surface of the mounting assembly, the supporting assembly and the mounting assembly clamp and fix the heat exchange plate, the side of the supporting assembly is hinged with a fixing assembly, and one end of the fixing assembly passes through the mounting assembly; the beneficial effect is: pulling the handle drives the supporting rod to move, and in the process of the supporting rod being pulled, the supporting rod will pull the traction rope, and the traction rope drives the rotating plate to rotate until the block disengages from the limit slot, and the motor can be started to drive the threaded rod to rotate, and the rotation of the threaded rod drives the supporting assembly to move as a whole, and then the limit rod is taken out from the limit slot, and the heat exchange plate as a whole can be removed from the mounting plate, and the overall operation efficiency is higher.

Description

Technical Field

[0001] The present invention relates to the technical field of heat exchangers, and in particular to a sound-insulating and noise-reducing heat exchanger assembly for ships. Background Art

[0002] Heat exchangers have become one of the most important and indispensable equipment in ships. For example, they are used in main and auxiliary engine oil coolers, cylinder liner fresh water coolers, fuel heaters, steam condensers, feedwater heaters and other equipment.

[0003] In the prior art, CN215003096U discloses a noise-reducing plate heat exchanger for ships. Referring to the heat exchanger disclosed in this patent, when the heat exchange plate needs to be cleaned, the motor is reversed, and the threaded rod drives the clamping block to loosen the middle plate. At this time, the nut is rotated to remove the screw, and the heat exchange plate can be removed for cleaning.

[0004] However, the use of nuts and screws to fix the heat exchange plates makes it time-consuming and labor-intensive to turn the nuts when fixing and removing the heat exchange plates, thereby reducing the efficiency of fixing the heat exchange plates. Secondly, when turning the nuts to fix the screws, it cannot be ensured that multiple sets of nuts are tightened to the same degree, resulting in a gap between the intermediate plate and the heat exchange plates. Summary of the Invention

[0005] The object of the present invention is to provide a sound-insulating and noise-reducing heat exchanger assembly for ships, so as to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a sound-insulating and noise-reducing heat exchanger assembly for ships, comprising a mounting plate, a mounting assembly being provided on the side of the mounting plate, a heat exchange plate being overlapped on the surface of the mounting assembly, the mounting assembly comprising a positioning rod, a fixing rod, and a limiting rod, the positioning rod, the fixing rod, and the limiting rod all being circular cylindrical structures, the positioning rod and the fixing rod being fixed on the side of the mounting plate, one end of the limiting rod being movably inserted into a card slot, the card slot being provided on the side of the mounting plate, the positioning rod, the fixing rod, and the limiting rod being provided in two groups, the two groups of positioning rods being arranged on one side of the mounting plate The heat exchange plate includes a protective cover arranged on its surface, and the bottom of the protective cover is overlapped on the surface of a group of fixed rods. The two sides of the protective cover are respectively in contact with the two groups of positioning rods and the two groups of limiting rods. The side of the positioning seat is slidably connected with a supporting assembly, and one end of the supporting assembly is sleeved on the surface of the mounting assembly. The supporting assembly includes an intermediate plate, a rotating ring, and a supporting plate. An auxiliary rod 1 is integrally formed on one side of the positioning seat. The auxiliary rod 1 is a circular cylindrical structure. The moving ring is sleeved on the outside of the auxiliary rod one, and one end of the auxiliary rod one is fixed to one end of the other set of fixed rods. A motor is provided on one side of the positioning seat, and a threaded rod is provided at the rotating end of the motor, and one end of the threaded rod is rotatably connected to the rotating groove. The rotating groove is opened at one end of one set of fixed rods. There are two groups of rotating rings, and the other group of rotating rings is screwed on the surface of the threaded rod. The top holding plate is a square plate structure, and the top holding plate is fixed between the two groups of rotating rings, and the rotating ring and the top holding plate are fixed to one side of the middle plate. A through hole is opened on the side of the middle plate, and the fixed rod passes through the through hole. A limiting groove is provided on the side of the middle plate, and the limiting rod passes through the limiting groove. The supporting assembly and the mounting assembly clamp and fix the heat exchange plate. The side of the supporting assembly is hinged with a fixing assembly, and one end of the fixing assembly passes through the mounting assembly. The fixing assembly includes a rotating plate and a clamping block. The rotating plate is a square plate structure, and the rotating plate is hinged to one side of the supporting plate. The clamping block is an arc-shaped plate structure, which is fixed to the surface of the rotating plate and passes through the limiting groove. The limiting groove is provided on the surface of the limiting rod. The surface of the middle plate is slidably connected with a supporting part, and the supporting part supports the fixing assembly.

[0007] Preferably, the supporting member includes a slider and a guide block, a slide groove is provided on the side of the middle plate, the slide groove is an arc-shaped plate-shaped groove structure, the slider is slidably connected in the slide groove, the slider is an annular plate-shaped structure, and a guide groove with a "T"-shaped plate-shaped groove structure is provided on the surface of the slide groove, the guide block is slidably connected in the guide groove, the guide block is fixed on one side of the slider, and a spring is provided between the slider and the slide groove, and the bottom surface of the rotating plate is in contact with the spring.

[0008] Preferably, a supporting rod is movably connected to the side of the supporting plate, and the supporting rod is a circular cylindrical structure. A traction rope is bolted to the surface of the supporting rod, and one end of the traction rope is fixed to the surface of the rotating plate through a through-hole. The through-hole is opened on the surface of the slider, and a blocking rod is provided on the surface of the supporting rod. The blocking rod contacts the surface of the supporting plate away from the slider, one end of the supporting rod contacts the surface of the slider, and the surfaces of the supporting rod and the slider in contact with each other are both provided with chamfered corners, and a handle is provided at the other end of the supporting rod, and a spring is provided between the handle and the supporting plate, and the spring is sleeved on the outside of the supporting rod.

[0009] Preferably, the handle member includes a pull plate, an auxiliary rod 2, a handle, and an extension plate. The pull plate is fixed at the other end of the supporting rod. The pull plate is a square plate structure. The auxiliary rod 2 is fixed on one side of the pull plate. The auxiliary rod 2 is a "T"-shaped column structure. A "T"-shaped groove for sliding with the auxiliary rod 2 is provided on one side of the handle. The extension plate is provided on one side of the handle. The extension plate is slidably connected in the mating port. The mating port is provided on one side of the pull plate, and an elastic plate is provided between the extension plate and the mating port. The elastic plate is an arc-shaped plate structure.

[0010] Preferably, a symmetrical plate is provided on the side of the holding plate, and one side of the handle contacts one side of the symmetrical plate.

[0011] Compared with the prior art, the present invention has the following beneficial effects:

[0012] The sound-insulating and noise-reducing heat exchanger assembly for ships proposed by the present invention has a handle that is pulled to drive the holding rod to move. When the holding rod is pulled, the holding rod pulls the traction rope, and the traction rope drives the rotating plate to rotate until the block is disengaged from the limit slot. The motor can then be started to drive the threaded rod to rotate, and the rotation of the threaded rod drives the holding assembly to move as a whole. Then, the limit rod is taken out of the limit slot, and the heat exchange plate as a whole can be removed from the mounting plate, thereby improving the overall operating efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the structure of the present invention;

[0014] Figure 2 This is an exploded schematic diagram of the installation assembly structure of the present invention;

[0015] Figure 3 It is a schematic diagram of the local structure of the present invention;

[0016] Figure 4 This is a schematic diagram of the structure of the intermediate plate of the present invention;

[0017] Figure 5 This is a schematic diagram of the coordination structure of the supporting assembly and the fixing assembly of the present invention;

[0018] Figure 6 for Figure 3A in the middle is an enlarged schematic diagram;

[0019] Figure 7 This is a schematic diagram of the structure of the top holding member of the present invention;

[0020] Figure 8 This is a structural diagram of the present invention when the intermediate plate does not clamp and fix the heat exchange plate.

[0021] In the figure: mounting plate 1, positioning seat 2, positioning rod 3, fixing rod 4, heat exchange plate 5, protective cover 6, motor 7, threaded rod 8, rotating groove 9, middle plate 10, through hole 11, limiting groove 12, limiting rod 13, card slot 14, rotating ring 15, auxiliary rod 16, rotating plate 17, card block 18, limiting card slot 19, slide groove 20, guide groove 21, slider 22, guide block 23, holding rod 24, traction rope 25, through opening 26, holding plate 27, pull plate 28, auxiliary rod 29, handle 30, side groove 31, extension plate 32, matching opening 33, elastic plate 34, symmetrical plate 35, and baffle rod 36. DETAILED DESCRIPTION

[0022] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments 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. Example 1

[0023] See also Figures 1-8 The present invention provides a technical solution: a heat exchanger assembly with sound insulation and noise reduction for ships, the heat exchanger assembly with sound insulation and noise reduction for ships includes: a heat exchanger assembly with sound insulation and noise reduction for ships, including a mounting plate 1, a mounting assembly is provided on the side of the mounting plate 1, a heat exchange plate 5 is overlapped on the surface of the mounting assembly, a top holding assembly is slidably connected to the side of the positioning seat 2, and one end of the top holding assembly is sleeved on the surface of the mounting assembly, the top holding assembly and the mounting assembly clamp and fix the heat exchange plate 5, characterized in that: the side of the top holding assembly is hinged with a fixed The assembly, one end of the fixed assembly passes through the installation assembly; pull the handle 30 to drive the holding rod 24 to move. When the holding rod 24 is pulled, the holding rod 24 will pull the traction rope 25, and the traction rope 25 drives the rotating plate 17 to rotate until the block 18 is disengaged from the limiting slot 19. The motor 7 can be started to drive the threaded rod 8 to rotate. The rotation of the threaded rod 8 drives the holding assembly to move as a whole, and then the limiting rod 13 is taken out from the limiting slot 12, and the heat exchange plate 5 can be removed from the mounting plate 1 as a whole. The overall operation efficiency is higher. Example 2

[0024] Based on Example 1, refer to Figures 1-4 The mounting assembly includes a positioning rod 3, a fixing rod 4, and a limiting rod 13. The positioning rod 3, the fixing rod 4, and the limiting rod 13 are all circular cylindrical structures. The positioning rod 3 and the fixing rod 4 are fixed to the side of the mounting plate 1. One end of the limiting rod 13 is movably inserted in the card slot 14. The card slot 14 is opened on the side of the mounting plate 1. The positioning rod 3, the fixing rod 4, and the limiting rod 13 are provided in two groups. The two groups of positioning rods 3 are symmetrically distributed about the center of one side of the mounting plate 1, the two groups of fixing rods 4 are symmetrically distributed about the center of the mounting plate 1, and the two groups of limiting rods 13 are symmetrically distributed about the center of the other side of the mounting plate 1. The heat exchange plate 5 includes a protective cover 6 provided on its surface, and the bottom of the protective cover 6 is overlapped on a group of fixing rods 4. On the surface, both sides of the protective cover 6 are in contact with two groups of positioning rods 3 and two groups of limiting rods 13 respectively; the supporting assembly includes an intermediate plate 10, a rotating ring 15, and a supporting plate 27. An auxiliary rod 16 is integrally formed on one side of the positioning seat 2. The auxiliary rod 16 is a circular cylindrical structure. The rotating ring 15 is sleeved on the outside of the auxiliary rod 16. One end of the auxiliary rod 16 is fixed to one end of another group of fixed rods 4. The rotating ring 15 slides along the auxiliary rod 16. A motor 7 is provided on one side of the positioning seat 2. A threaded rod 8 is provided at the rotating end of the motor 7, and one end of the threaded rod 8 is rotatably connected to the rotating groove 9. The rotating groove 9 is opened at one end of a group of fixed rods 4, and two groups of rotating rings 15 are provided. Another set of rotating rings 15 is screwed on the surface of the threaded rod 8, and the inner ring surface of the other set of rotating rings 15 is provided with a thread groove that cooperates with the threaded rod 8. The top holding plate 27 is a square plate structure, and the top holding plate 27 is fixed between the two sets of rotating rings 15, and the rotating ring 15 and the top holding plate 27 are fixed to one side of the middle plate 10. A through hole 11 is provided on the side of the middle plate 10, and the fixing rod 4 passes through the through hole 11. A limiting groove 12 is provided on the side of the middle plate 10, and the limiting rod 13 passes through the limiting groove 12; start the motor 7 to drive the threaded rod 8 to rotate, and during the rotation of the threaded rod 8, the top holding assembly is driven to slide along the auxiliary rod 16 as a whole, and the heat exchange plate 5 is overlapped on the surface of a set of fixing rods 4, and one end of the limiting rod 13 passes through the limiting groove 12 and is inserted into the card slot 14 until the top holding assembly is fully in contact with the heat exchange plate 5 and the heat exchange plate 5 is clamped and fixed, and then the motor 7 is stopped. Example 3

[0025] Based on the second embodiment, Figure 1 、 Figure 3 、 Figure 5 、 Figure 7The fixed assembly includes a rotating plate 17 and a clamping block 18. The rotating plate 17 is a square plate structure. The rotating plate 17 is hinged to one side of the top holding plate 27. The clamping block 18 is an arc-shaped plate structure. The clamping block 18 is fixed to the surface of the rotating plate 17, and the clamping block 18 passes through the limiting slot 19. The limiting slot 19 is opened on the surface of the limiting rod 13. The surface of the intermediate plate 10 is slidably connected with a top holding member, which holds the fixed assembly; the top holding member includes a slider 22 and a guide block 23. A slide groove 20 is opened on the side of the intermediate plate 10. The slide groove The slide 20 is an arc-shaped plate-shaped groove structure, and the slider 22 is slidably connected in the slide 20. The slider 22 is an annular plate-shaped structure, and the surface of the slide 20 is provided with a guide groove 21 in a "T"-shaped plate-shaped groove structure. The guide block 23 is slidably connected in the guide groove 21. The guide block 23 is fixed to one side of the slider 22. The guide block 23 is slidably connected in the guide groove 21 to prevent the slider 22 from falling off from the slide 20; and a spring is provided between the slider 22 and the slide 20, and the bottom surface of the rotating plate 17 is in contact with the spring; the side of the top holding plate 27 The surface of the top holding rod 24 is movably connected, and the top holding rod 24 is a circular cylindrical structure. A traction rope 25 is bolted to the surface of the top holding rod 24. One end of the traction rope 25 passes through the through hole 26 and is fixed to the surface of the rotating plate 17. The through hole 26 is opened on the surface of the slider 22, and a blocking rod 36 is provided on the surface of the top holding rod 24. The blocking rod 36 contacts the surface of the top holding plate 27 away from the slider 22. One end of the top holding rod 24 contacts the surface of the slider 22, and the surfaces of the top holding rod 24 and the slider 22 that contact each other are provided with chamfered corners. The other end of the holding rod 24 is provided with a handle piece, and a spring is provided between the handle piece and the top holding plate 27, and the spring is sleeved on the outside of the top holding rod 24; pushing the handle piece drives the top holding rod 24 to move in the direction close to the slider 22, and one end of the top holding rod 24 will contact the surface of the slider 22 during the movement. The rounded corners are provided to facilitate the contact between the top holding rod 24 and the slider 22 and to facilitate the top holding rod 24 to hold the slider 22. The slider 22 is held to move in the direction close to the rotating plate 17, so the slider 22 will hold the rotating plate 17 in a horizontal state (such as Figure 3 As shown), the card block 18 can pass through the limit card slot 19 to lock the distance between the middle plate 10 and the mounting plate 1 to prevent the middle plate 10 from moving; Example 4

[0026] Based on Example 3, refer to Figure 1 、 Figure 3 、 Figure 6 、 Figure 8The handle member includes a pull plate 28, an auxiliary rod 29, a handle 30, and an extension plate 32. The pull plate 28 is fixed to the other end of the supporting rod 24. The pull plate 28 is a square plate structure. The auxiliary rod 29 is fixed to one side of the pull plate 28. The auxiliary rod 29 is a "T"-shaped column structure. A "T"-shaped groove that slides with the auxiliary rod 29 is provided on one side of the handle 30. The extension plate 32 is provided on one side of the handle 30. The extension plate 32 is slidably connected in the matching opening 33. The matching opening 33 is provided on one side of the pull plate 28, and an elastic plate 34 is provided between the extension plate 32 and the matching opening 33. The elastic plate 34 is an arc-shaped plate structure. A symmetrical plate 35 is provided on the side of the supporting plate 27. One side of the handle 30 contacts one side of the symmetrical plate 35. The distance between the handle 30 and the pull plate 28 is enough for the staff to insert their fingers to facilitate pulling the handle 30. Pulling the handle 30 drives the supporting rod 24 to move until it is as shown in the figure. Figure 8 In this state, the elastic plate 34 restores its elastic force to push the handle 30 upward, so that one side of the handle 30 contacts one side of the symmetrical plate 35. At this time, the handle is also limited by the symmetrical plate 35. At the same time, when the supporting rod 24 is pulled, the supporting rod 24 pulls the traction rope 25, and the traction rope 25 drives the rotating plate 17 to rotate until the block 18 is disengaged from the limiting slot 19 ( Figure 8 State), the motor 7 can be started to drive the threaded rod 8 to rotate, and the rotation of the threaded rod 8 drives the supporting assembly to move as a whole, and then the limiting rod 13 is taken out from the limiting groove 12, and the heat exchange plate 5 is removed from the mounting plate 1 as a whole, which has a higher overall operation efficiency.

[0027] The stop rod 36 can limit the distance that the supporting rod 24 moves toward the slider 22. If there is no stop rod 36 to limit the supporting rod 24, under the action of the spring on the outer side of the supporting rod 24, the supporting rod 24 will move until the handle at the other end contacts one side of the supporting plate 27, so that the traction rope 25 at one end of the supporting rod 24 pulls the rotating plate 17 until the rotating plate 17 rotates, and the block 18 will disengage from the limiting slot 19, and the distance between the intermediate plate 10 and the mounting plate 1 cannot be locked.

[0028] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A heat exchanger assembly for sound insulation and noise reduction for ships, comprising a mounting plate (1), a mounting assembly being provided on the side of the mounting plate (1), a heat exchange plate (5) being overlapped on the surface of the mounting assembly, the mounting assembly comprising a positioning rod (3), a fixing rod (4), and a limiting rod (13), the positioning rod (3), the fixing rod (4), and the limiting rod (13) all being in a circular cylindrical structure, the positioning rod (3) and the fixing rod (4) being fixed on the side of the mounting plate (1), one end of the limiting rod (13) being movably plugged into a card slot (14), the card slot (14) being provided on the side of the mounting plate (1), the positioning rod (3), the fixing rod (4), and the limiting rod (13) Two groups of rods (13) are provided, the two groups of positioning rods (3) are symmetrically distributed about the center of one side of the mounting plate (1), the two groups of fixing rods (4) are symmetrically distributed about the center of the mounting plate (1), and the two groups of limiting rods (13) are symmetrically distributed about the center of the other side of the mounting plate (1), and the heat exchange plate (5) includes a protective cover (6) provided on its surface, the bottom of the protective cover (6) is overlapped on the surface of the group of fixing rods (4), and the two sides of the protective cover (6) are respectively in contact with the two groups of positioning rods (3) and the two groups of limiting rods (13), and the side of the positioning seat (2) is slidably connected to a top holding component, and one end of the top holding component is sleeved on the surface of the mounting component. The supporting assembly includes an intermediate plate (10), a rotating ring (15), and a supporting plate (27). An auxiliary rod (16) is integrally formed on one side of the positioning seat (2). The auxiliary rod (16) is a circular cylindrical structure. The rotating ring (15) is sleeved on the outside of the auxiliary rod (16). One end of the auxiliary rod (16) is fixed to one end of another set of fixed rods (4). A motor (7) is provided on one side of the positioning seat (2). A threaded rod (8) is provided at the rotating end of the motor (7), and one end of the threaded rod (8) is rotatably connected to the rotating groove (9). The rotating groove (9) is opened at one end of a set of fixed rods (4). The rotating ring (15) is provided with two groups, the other group of rotating rings (15) is screwed on the surface of the threaded rod (8), the top holding plate (27) is a square plate structure, the top holding plate (27) is fixed between the two groups of rotating rings (15), and the rotating rings (15) and the top holding plate (27) are fixed on one side of the middle plate (10), a through hole (11) is provided on the side of the middle plate (10), the fixing rod (4) passes through the through hole (11), a limiting groove (12) is provided on the side of the middle plate (10), the limiting rod (13) passes through the limiting groove (12), the top holding assembly and the mounting assembly clamp and fix the heat exchange plate (5), and the characteristics are: The side of the holding component is hinged with a fixed component, one end of the fixed component passes through the installation component, and the fixed component includes a rotating plate (17) and a clamping block (18). The rotating plate (17) is a square plate structure, the rotating plate (17) is hinged to one side of the holding plate (27), the clamping block (18) is an arc-shaped plate structure, the clamping block (18) is fixed to the surface of the rotating plate (17), and the clamping block (18) passes through the limiting slot (19), the limiting slot (19) is provided on the surface of the limiting rod (13), and the surface of the intermediate plate (10) is slidably connected with a holding member, and the holding member holds the fixed component.

2. A sound-insulating and noise-reducing heat exchanger assembly for ships according to claim 1, characterized in that: The supporting member includes a slider (22) and a guide block (23). A slide groove (20) is provided on the side of the middle plate (10). The slide groove (20) is in the form of an arc-shaped plate-shaped groove body structure. The slider (22) is slidably connected in the slide groove (20). The slider (22) is in the form of an annular plate-shaped structure. A guide groove (21) in the form of a "T"-shaped plate-shaped groove body structure is provided on the surface of the slide groove (20). The guide block (23) is slidably connected in the guide groove (21). The guide block (23) is fixed on one side of the slider (22). A spring is provided between the slider (22) and the slide groove (20). The bottom surface of the rotating plate (17) contacts the spring.

3. The sound-insulating and noise-reducing heat exchanger assembly for ships according to claim 1, characterized in that: The side of the supporting plate (27) is movably connected with a supporting rod (24), which is a circular cylindrical structure. A traction rope (25) is bolted to the surface of the supporting rod (24), and one end of the traction rope (25) passes through the through hole (26) and is fixed to the surface of the rotating plate (17). The through hole (26) is opened on the surface of the slider (22), and a blocking rod (36) is provided on the surface of the supporting rod (24). The blocking rod (36) contacts the surface of the supporting plate (27) away from the slider (22), one end of the supporting rod (24) contacts the surface of the slider (22), and the surfaces of the supporting rod (24) and the slider (22) in contact with each other are both provided with chamfered corners. A handle is provided at the other end of the supporting rod (24), and a spring is provided between the handle and the supporting plate (27). The spring is sleeved on the outside of the supporting rod (24).

4. The sound-insulating and noise-reducing heat exchanger assembly for ships according to claim 3, characterized in that: The handle member includes a pull plate (28), an auxiliary rod (29), a handle (30), and an extension plate (32). The pull plate (28) is fixed to the other end of the supporting rod (24). The pull plate (28) is a square plate-shaped structure. The auxiliary rod (29) is fixed to one side of the pull plate (28). The auxiliary rod (29) is a "T"-shaped column structure. A "T"-shaped groove for sliding with the auxiliary rod (29) is provided on one side of the handle (30). The extension plate (32) is provided on one side of the handle (30). The extension plate (32) is slidably connected in the matching opening (33). The matching opening (33) is provided on one side of the pull plate (28). An elastic plate (34) is provided between the extension plate (32) and the matching opening (33). The elastic plate (34) is an arc-shaped plate-shaped structure.

5. The sound-insulating and noise-reducing heat exchanger assembly for ships according to claim 3, characterized in that: A symmetrical plate (35) is provided on the side of the top holding plate (27), and one side of the handle (30) contacts one side of the symmetrical plate (35).

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